Alternatives to Extism
Compare Extism alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Extism in 2026. Compare features, ratings, user reviews, pricing, and more from Extism competitors and alternatives in order to make an informed decision for your business.
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1
Beamable
Beamable
That's all that's needed to get the ability to build your own custom server logic via microservices along with a world of LiveOps tools and live services to build games in unity and unreal that players love. The first marketplace of live services solutions for games, plug-ins for monetization, generative AI, blockchain, and more. Built around a common data fabric that lets you snap together components that extend your game — without the headaches. Deliver state-of-the-art live services to all of your game teams. The entire Beamable live services stack can be deployed on-prem or in your own cloud environment, providing the ultimate in security, control, and flexibility. Starting building cloud-native live services for your game today. One line of code unlocks systems like persistent worlds, customized servers, social systems, and managed inventory — with no backend servers to configure or install.Starting Price: $10 per 1 million API calls -
2
AssemblyScript
The AssemblyScript Project
A TypeScript-like language for WebAssembly. AssemblyScript targets WebAssembly's feature set specifically, giving developers low-level control over their code. Its similarity with TypeScript makes it easy to compile to WebAssembly without learning a new language. Integrates with the existing Web ecosystem - no heavy toolchains to set up. Simply npm install it! AssemblyScript is free and open source software released under the Apache License, Version 2.0, builds upon Binaryen and is based on the WebAssembly specification. It is brought to you by the following awesome people:Starting Price: Free -
3
Deno
Deno
Deno is a simple, modern and secure runtime for JavaScript, TypeScript, and WebAssembly that uses V8 and is built in Rust. Deno comes with a manual which contains more in depth explanations about the more complex functions of the runtime, an introduction to the concepts that Deno is built on, details about the internals of Deno, how to embed Deno in your own application and how to extend Deno using Rust plugins. Next to the Deno runtime, Deno also provides a list of audited standard modules that are reviewed by the Deno maintainers and are guaranteed to work with a specific Deno version. These live in the denoland/deno_std repository.Starting Price: Free -
4
Nakama
Heroic Labs
Nakama is an open source game server framework developed by Heroic Labs, designed to facilitate the creation of real-time, multiplayer, and social games across various platforms, including Godot, Unity, Unreal Engine, and more. It provides a comprehensive suite of features such as real-time multiplayer capabilities, customizable matchmaking algorithms, leaderboards, in-game chat, and support for in-game currencies. Developers can extend Nakama's functionality using server-side logic written in Go, TypeScript, or Lua, allowing for authoritative game mechanics and enhanced control over game state. The platform also offers open-source client libraries tailored for different game engines and languages, ensuring seamless integration and flexibility in game development. Nakama is your dedicated server, not another multi-tenant SaaS. Add custom features and secure authoritative gameplay logic directly to your game server.Starting Price: Free -
5
WebAssembly
WebAssembly
WebAssembly (abbreviated Wasm) is a binary instruction format for a stack-based virtual machine. Wasm is designed as a portable compilation target for programming languages, enabling deployment on the web for client and server applications. The Wasm stack machine is designed to be encoded in a size- and load-time-efficient binary format. WebAssembly aims to execute at native speed by taking advantage of common hardware capabilities available on a wide range of platforms. WebAssembly describes a memory-safe, sandboxed execution environment that may even be implemented inside existing JavaScript virtual machines. When embedded in the web, WebAssembly will enforce the same-origin and permissions security policies of the browser. WebAssembly is designed to be pretty-printed in a textual format for debugging, testing, experimenting, optimizing, learning, teaching, and writing programs by hand. The textual format will be used when viewing the source of Wasm modules on the web.Starting Price: Free -
6
Rio Terminal
Rio Terminal
Rio is a terminal application that’s built with Rust, WebGPU, Tokio runtime. It targets to have the best frame per second experience as long you want, but is also configurable to use as minimal from GPU. The terminal renderer is based on redux state machine, lines that has not updated will not suffer a redraw. Looking for the minimal rendering process in most of the time. Rio is also designed to support WebAssembly runtime so in the future you will be able to define how a tab system will work with a WASM plugin written in your favorite language. Rio uses WGPU, which is an implementation of WebGPU for use outside of a browser and as backend for Firefox’s WebGPU implementation. WebGPU allows for more efficient usage of modern GPU’s than WebGL. -
7
Cocos Creator
Cocos
Cocos Creator is an efficient, lightweight, open source, cross-platform graphics engine and real-time interactive 2D and 3D digital content creation platform. It is not only flawless for 2D and 3D game development, but also provides integral solutions for automotive, XR, Metaverse, and education. The engine offers high performance, low power consumption, streaming loading, and cross-platform publishing capabilities. Cocos Creator features an all-in-one editor designed for artists, game planners, and developers, a powerful plug-in system for free expansion, a smooth animation editor, and an easy-to-use and easy-to-debug TypeScript scripting language. It supports full coverage of various platforms, providing friendly and professional tools to create virtual worlds. The platform also offers solutions for virtual character creation, industrial simulation, interactive marketing, XR content creation, gaming, and smart digital cockpits. -
8
SoundCraft
ArtCraft
SoundCraft is an open-source digital audio workstation for recording, editing, arranging and mixing audio. Its Edit window supports multitrack arrangement, playlists, comping, fades and tempo maps; the Mix window provides channel strips, buses, sends, automation and plugins. Users can record audio and MIDI, edit MIDI in piano-roll and score views, import common audio formats, and bounce mixes or stems. CLAP, VST3 and Audio Unit plugins are supported, and a CLI, JSON control channel and MCP server expose commands for scripts and AI agents. Native releases are available for macOS, Windows and Linux; FreeBSD and a browser-based WebAssembly build are also documented. It is aimed at audio engineers, musicians, producers and developers working on music, recording, mixing, soundtracks or other multitrack audio. SoundCraft is currently labeled pre-alpha, with development ongoing.Starting Price: $0 -
9
Fermyon
Fermyon
Fermyon greatly reduces the hassle, complexity, and cost of building cloud applications by offering a complete WebAssembly-based execution environment with an associated easy-to-use web interface. Build and run microservices and web applications with WebAssembly. Get up and running within minutes with the Spin CLI. Easily compose apps from functions & components with Spin. Powerful versioning and release management with Bindle. Manage auto deploys and view logs through the web dashboard. Seamlessly run your WebAssembly services & containers side by side. We are building open-source, WebAssembly-powered cloud tools, with the aim of simplifying and unlocking new technologies for all. You can rapidly compose and run web apps and microservices with startup times measured in milliseconds instead of seconds, scale up or down almost instantly and execute in a secure, sandboxed environment. A faster, lighter way to run your services in the cloud, and to harness the power of WebAssembly. -
10
Zellij
Zellij
Zellij is a workspace aimed at developers, ops-oriented people, and terminal enthusiasts, designed around the philosophy that one must not sacrifice simplicity for power, delivering a great out-of-the-box experience together with advanced features. Geared toward both beginners and power users, it offers deep customizability and personal automation through layouts, true multiplayer collaboration, unique UX elements such as floating and stacked panes, and an innovative resizing algorithm that automatically places new panes in the optimal location. A plugin system enables creation of custom pane types in any language compiling to WebAssembly, while a comprehensive CLI introduces Command Panes for running and rerunning commands in dedicated panes and provides actions like run, edit, and rename-pane. Zellij’s single-process core ensures responsive performance, and its batteries-included approach gives users a terminal workspace with everything needed for modern development workflows.Starting Price: Free -
11
PhotoCraft
ArtCraft
PhotoCraft is a free, open-source raster image editor for photographers, digital artists, designers, and other creative users. It provides layers, masks, adjustment layers, layer styles, text, vector tools, and brushes in a native desktop application, with a WebAssembly build that can be hosted separately. Users can make non-destructive edits with adjustment layers and live-preview filters, select subjects and objects on-device, and refine masks locally. The editor opens and saves layered PSD and PSB documents, supports smart objects and smart filters, and includes color-management tools for RGB, CMYK, Lab, and grayscale documents at 8-, 16-, and 32-bit depths. PhotoCraft is available for macOS, Windows, and Linux, and is distributed as free, open-source software.Starting Price: Free -
12
Ring
Ring
The Ring is a practical general-purpose multi-paradigm language. The supported programming paradigms are imperative, procedural, object-oriented, declarative using nested structures, functional, meta programming and natural programming. The language is portable (Windows, Linux, macOS, Android, WebAssembly, etc.) and can be used to create Console, GUI, Web, Games and Mobile applications. The language is designed to be simple, small and flexible. The language is simple, trying to be natural, encourage organization and comes with transparent and visual implementation. It comes with compact syntax and a group of features that enable the programmer to create natural interfaces and declarative domain-specific languages in a fraction of time. It is very small, flexible and comes with smart garbage collector that puts the memory under the programmer control. It supports many programming paradigms, comes with useful and practical libraries.Starting Price: Free -
13
FilmCraft
ArtCraft
FilmCraft is an open-source, non-linear video editor for assembling and finishing projects on macOS, Windows, and Linux. It provides source and program monitors, media bins, a multitrack timeline, trimming tools, markers, and undo history. Editors can apply color correction and LUTs, animate effects with keyframes, add transitions, mix audio, create titles, and edit captions. The application imports video, audio, and image media and exports sequences with built-in presets and codecs. A command-line interface, local JSON control channel, and MCP server let scripts and compatible AI agents inspect projects and automate editing actions. FilmCraft is also available as a browser-based WebAssembly build for users to host themselves. The software is in alpha, and its support for real-world media and production workflows continues to develop.Starting Price: $0 -
14
Eclipse Web Tools Platform (WTP)
Eclipse Foundation
The Eclipse Web Tools Platform (WTP) project extends the Eclipse platform with tools for developing Web and Java EE applications. It includes source and graphical editors for a variety of languages, wizards and built-in applications to simplify development, and tools and APIs to support deploying, running, and testing apps. The Libra project integrates the existing tooling provided by the Plug-in Development Environment project and the Web Tools Platform project to work together for implementing OSGi Enterprise scenarios. The JavaScript Development Tools provide plug-ins that implement an IDE supporting the development of JavaScript applications and JavaScript within web applications. It adds a JavaScript project type and perspective to the Eclipse Workbench as well as a number of views, editors, wizards, and builders. -
15
GridCraft
ArtCraft
GridCraft is an open-source spreadsheet application for creating, editing, calculating, and analyzing workbooks on desktop or in a browser. Its interface includes a ribbon, formula bar, and sheet tabs, with tools for formulas, dynamic arrays, tables, sorting, filtering, data validation, conditional formatting, charts, and PivotTables. It supports XLSX, CSV, and TSV workbooks, with comments, hyperlinks, print settings, and PDF output. Users can build budgets, schedules, sales summaries, and other data tables, then calculate and visualize results in a workbook. Desktop releases are available for Windows, macOS, and Linux; a WebAssembly build can be hosted on a static server. A command-line tool, JSON control channel, and Model Context Protocol server let developers and AI agents inspect, edit, calculate, and format workbooks programmatically. GridCraft is free, open-source software, and its maintainers currently describe the project as pre-alpha.Starting Price: Free -
16
JaCoCo
EclEmma
JaCoCo is a free code coverage library for Java, which has been created by the EclEmma team based on the lessons learned from using and integrating existing libraries for many years. The master branch of JaCoCo is automatically built and published. Due to the test-driven development approach, every build is considered fully functional. See the change history for the latest features and bug fixes. SonarQube code quality metrics of the current JaCoCo implementation are available on SonarCloud.io. Integrate JaCoCo technology with your tools. Use JaCoCo tools out of the box. Improve the implementation and add new features. There are several open-source coverage technologies for Java available. While implementing the Eclipse plug-in EclEmma the observation was that none of them are really designed for integration. Most of them are specifically fit to a particular tool (Ant tasks, command line, IDE plug-in) and do not offer a documented API that allows embedding in different contexts.Starting Price: Free -
17
AppWarp
ShepHertz Technologies
AppWarp is a powerful real-time multiplayer game development framework that enables seamless integration of interactive online gameplay across multiple platforms. Supporting over 18 SDKs, including iOS, Android, Unity3D, and Cocos2Dx, it allows developers to create engaging real-time and turn-based multiplayer experiences effortlessly. AppWarp offers essential features like matchmaking, connection stability, and cross-platform functionality, ensuring smooth gameplay interactions. Developers can leverage its intuitive client-side tools to manage virtual rooms, lobbies, and communication using a custom binary protocol. For those needing more control, AppWarp S2 provides an on-premise server solution, allowing developers to host their own authoritative game servers with advanced customization options such as server-side authentication and game logic.Starting Price: $100 per month -
18
PyMOL
PyMOL
PyMOL is a user-sponsored molecular visualization system on an open-source foundation, maintained and distributed by Schrödinger. PyQt interface replaces Tcl/Tk and MacPyMOL on all platforms. Better third-party plugin and custom scripting support. A comprehensive software package for rendering and animating 3D structures. A plug-in for embedding 3D images and animations into PowerPoint presentations. PyMOL is a commercial product, but we make most of its source code freely available under a permissive license. The open-source project is maintained by Schrödinger and ultimately funded by everyone who purchases a PyMOL license. Open access incentive executables. Liberal evaluation policy. Improved fuse command (disallows hypervalent bonds, substitutes monovalent atoms instead of attaching to them) Properties inspector now supports unsetting settings with the “delete” key. Fix workspace disappearing on specific display resolutions. -
19
t3rn
t3rn
t3rn creates frictionless multichain smart contract execution that's accountable, scalable, and completely trust-free for investors, users, and developers. t3rn intelligently supports the interoperable systems that the multichain future will be built on by working intelligently with any multichain transaction. t3rn smart contract hubs have built-in fail-safes that reverse failed transactions to their last secure point, ensuring that funds aren't lost. Open-source code deployed with full on-chain provenance, allowing original authors to get paid every time their code executes. Defi should never be limited to one blockchain, t3rn makes multichain DeFi possible. Anyone can use the smart contracts stored in our open-source registry or get paid whenever a smart contract you upload is used. Smart contracts can be uploaded as they are, in familiar languages like Solidity, ink!, WebAssembly, or anything that compiles to WASM. -
20
Solar2D
Solar2D
Solar2D is a Lua-based game engine focused on ease of iterations and usage. As a fully open-source project forked from the well-established and widely used Corona SDK game engine, Solar2D allows developers to create applications for mobile, desktop, and connected TV devices with a single codebase, supporting platforms such as iOS, tvOS, Android, Android TV, macOS, Windows, Linux, and HTML5. The engine features an instant-update simulator, enabling developers to see code changes in real time, and supports live builds for rapid testing on real devices over a local network. A vast array of plugins is available to extend the core functionality, covering aspects like in-app advertising, analytics, and media. For additional customization, developers can call any native (C/C++/Obj-C/Java) library or API using Solar2D Native. Built on the lightweight and fast Lua scripting language, Solar2D is completely free to use, with no hidden fees, charges, or royalties.Starting Price: Free -
21
RunMat
RunMat
RunMat (by Dystr) is a fast, free, open-source alternative for running MATLAB code. Users can run their existing .m files with complete MATLAB language grammar and core semantics. No license fees, no lock-in. 300+ built-in functions supported. RunMat is built with a modern Rust runtime featuring a tiered execution model: an interpreter (Ignition) for instant 5ms startup and a JIT compiler (Turbine/Cranelift) for hot paths. GPU acceleration is automatic via a fusion engine that detects elementwise operation chains and dispatches them as optimized GPU kernels across NVIDIA, AMD, Apple Silicon, and Intel GPUs through Metal, DirectX 12, Vulkan, and WebGPU. Up to 131x faster than NumPy and 7x faster than PyTorch on dense numerical workloads. Runs everywhere: CLI, NPM package, Homebrew, Jupyter kernel, or instantly in the browser via WebAssembly + WebGPU. Single portable binary. MIT licensed.Starting Price: $0 -
22
DeckCraft
ArtCraft
DeckCraft is an open-source presentation editor for creating, editing, and presenting slide decks. It provides themes, layouts, text formatting, shapes, pictures, tables, charts, transitions, animations, presenter view, and full-screen slideshows. The application can open and save PowerPoint PPTX files and export presentations to PDF, PNG, JPEG, and outline formats. Users can control actions through the graphical interface, more than 200 command-line commands, a JSON control channel, or an MCP server for AI-agent workflows. DeckCraft is available as native applications for Windows, macOS, and Linux, as well as a WebAssembly build that can be hosted as a static site. The project is in alpha, so its feature set and behavior are still under development.Starting Price: $0 -
23
RPG Maker
RPG Maker
RPG Maker is a series of game development engines that enable users to create their own role-playing games without prior programming experience. Each version of RPG Maker offers unique features and improvements to cater to different development needs. The latest installment, RPG Maker MZ, includes enhancements to the map editor, character generator, database, animations, and plug-ins, allowing for more customization than ever before. RPG Maker MV expands platform support to include MacOSX, Android, and iOS, with improvements to the map editor, higher resolution, and easy-to-use plug-ins. RPG Maker VX Ace is known for its intuitive interface and extensive library of assets and scripts, making it a great starter engine for beginners while still powerful enough for developers. The RPG Maker series provides a comprehensive set of tools, including a versatile map editor for designing environments, a character generator for creating original characters, and more.Starting Price: Free -
24
Modsurfer
Dylibso
Modsurfer provides ops & dev teams with the first system-of-record and diagnostics application to search, browse, validate, audit, and investigate WebAssembly binaries. At-a-glance insights into WebAssembly module data (code size & complexity, imports/exports & more). Search for details about modules (hash, ID, function names, strings, namespaces, errors & more). Easily audit and track all the WebAssembly code in your stack. Debug & triage issues otherwise difficult to pinpoint in opaque WebAssembly format. Write or generate a "check file" to track binary requirements. If a module fails validation, a helpful report is created to get things back on track. Validate your modules for import/export existence, function signature, security compliance, runtime complexity, & more. The CLI puts all your Modsurfer data at your fingertips and is the easiest way to interact with the Modsurfer desktop or enterprise server.Starting Price: Free -
25
VectorCraft
ArtCraft
VectorCraft is an open-source vector illustration and graphics editor for artists, illustrators, and designers. It provides a workspace with pen and direct-selection tools, Bézier path editing, shape construction and boolean operations, snapping guides, layers, artboards, editable effects, gradients, image tracing, and controls for typography and appearance. Users can create and revise vector artwork, import SVG and PDF files, and export SVG, PDF, PNG, JPEG, and WebP files, including multi-size screen assets. VectorCraft runs as a native application on macOS, Windows, and Linux, and a WebAssembly build can be self-hosted for browser use. Its command-line tools and JSON control interface also support scripted and agent-assisted editing and export.Starting Price: Free -
26
AWS GameKit
Amazon
Use AWS CloudFormation templates to power backend game features. Deliver core functionality to your players using prebuilt AWS solutions. Use sample assets and code to rapidly develop game feature prototypes. AWS GameKit is a game engine integration toolkit that helps you create cloud-connected game features without the learning curve of using cloud service architecture. Quickly start prototyping active game projects with ready-to-use backend game features, open-source code, and documentation. Use solutions built by cloud architecture experts, based on the AWS Well-Architected Framework, that are secure, high-performing, and resilient. Use the AWS GameKit plugin in your game engine to configure and deploy supporting AWS resources for your cloud-based game features. Use AWS tools to monitor, scale, and customize backend services, and control your data generated and stored on AWS. -
27
ADAPT
AgGateway
Tools to simplify communication between growers, their machines, and their partners. It is the product of several years of work by more than a dozen companies and experts collaborating through AgGateway. The ADAPT framework is comprised of an agricultural application data model, a common API (Application Programming Interface), and a combination of open source and proprietary data conversion plug-ins. Participating FMIS (Farm Management Information System) companies are responsible for completing their own implementation of mapping the agricultural application data model to their FMIS data model. It features plug-in libraries that allow the farm management software to convert to and from the common object model and different file formats. -
28
Elements
Namazu Studios
Namazu Studios is powered by Elements, an open-source backend server and live-ops platform designed specifically for game studios. Elements enables developers to build scalable infrastructure for online multiplayer games with ease, offering a truly extensible game engine. With a focus on simplifying backend management, Elements streamlines the complexities of game development by providing a flexible, scalable solution that allows studios to focus on creating engaging game experiences. The platform is designed for both seasoned developers and newcomers, offering a user-friendly interface to manage critical game operations without the need for extensive backend coding. -
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WordCraft
ArtCraft
WordCraft is a free, open-source word processor for people who write and format documents. Its ribbon interface provides editing and page-design tools for styles, tables, images, citations, footnotes, tables of contents, comments, and tracked changes, along with spelling and grammar checks and mail merge. It reads and writes DOCX, opens older DOC files, works with ODT, RTF, HTML, Markdown, LaTeX, and plain text, and exports PDF and page images. WordCraft runs as a native application on Windows, macOS, and Linux, and also has a WebAssembly edition that can be hosted on a static server. Its command-line tools, JSON control channel, and Model Context Protocol server support scripted and AI-agent document workflows. The software is in alpha, so file compatibility and feature coverage continue to develop.Starting Price: $0 -
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Gideros
Gideros
Gideros is a free and open-source cross-platform game development framework that enables developers to create high-performance 2D games using the Lua programming language. It offers instant testing on real devices through Wi-Fi, eliminating the need for lengthy export or deployment processes. Built on C/C++ and OpenGL, Gideros ensures that games run at native speed, fully utilizing the power of CPUs and GPUs. The framework supports easy extension through plugins, allowing developers to import existing code in C, C++, Java, or Objective-C and bind it to Lua. Gideros provides its own class system with standard object-oriented programming practices, enabling clean and reusable code. The comprehensive development environment includes a lightweight IDE, players for desktops and devices, a texture packer, and a font creator. Gideros supports multiple platforms, including Windows, macOS, Linux, iOS, Android, and HTML5.Starting Price: Free -
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Voltra
Voltra
Voltra is a high-performance game server hosting platform designed to make deploying, managing, and scaling multiplayer game servers simple for individuals, communities, creators, and businesses. Unlike traditional game hosting providers that require customers to purchase a separate server for every game, Voltra offers a unique subscription-based model. For $14.99/month, customers receive access to a powerful hosting plan that can be used for any supported game. Servers can be reinstalled or switched between games at any time without purchasing another plan, making it easy to explore new titles VoltraNode supports a growing range of popular dedicated game servers, including Minecraft, Garry's Mod (GMod), Palworld, Rust, ARK: Survival Ascended, DayZ, FiveM, Enshrouded, and many others. Users can install, configure, and manage servers within minutes while retaining full access to server files, configuration options, scheduled tasks, backups, startup parameters etc. -
32
Kitesurf
Cloudflare
Kitesurf is an agent-first browser built specifically for AI agents and runs entirely on Cloudflare Workers instead of using Chromium. It is designed around what agents actually need: structured machine-readable content, scalable execution, low CPU and memory use, and safe interaction with untrusted web pages, rather than human-facing features such as tabs, themes, extensions, or pixel-perfect scrolling. Each page load is treated as untrusted input, every session starts fresh, and components are isolated with access only to the resources required for their function. Kitesurf uses native Rust compiled to WebAssembly where possible and is organized around an Engine, PageScript, and PageRenderer. The Engine exposes Chrome DevTools Protocol WebSocket and REST APIs and stores session state, while PageScript parses HTML and CSS and runs JavaScript and WebAssembly inside isolated Workers.Starting Price: $20 -
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LightCraft
ArtCraft
LightCraft is an open-source photo library and RAW editor for photographers who want to organize and develop images locally. It imports photos into albums and folders and supports ratings, flags, metadata search, sorting and duplicate detection. Non-destructive tools cover exposure, tone and color adjustments, crop and geometry, presets, black-and-white conversion, and local masks. It reads multiple camera RAW and common image formats and exports JPEG, PNG, TIFF, WebP and DNG. Users can compare edits, synchronize settings across selected photos, and create contact sheets. LightCraft runs on macOS, Windows and Linux; a WebAssembly build can be self-hosted. A command-line interface, JSON control channel and MCP server support automation. The library is stored locally, without an account or cloud service.Starting Price: $0 -
34
Audacity
Audacity
Free, open source, cross-platform audio software. Audacity is an easy-to-use, multi-track audio editor and recorder for Windows, macOS, GNU/Linux and other operating systems. Developed by a group of volunteers as open source. Audacity can record live audio through a microphone or mixer, or digitize recordings from other media. Import, edit, and combine sound files. Export your recordings in many different file formats, including multiple files at once. Supports 16-bit, 24-bit and 32-bit. Sample rates and formats are converted using high-quality resampling and dithering. Support for LADSPA, LV2, Nyquist, VST and Audio Unit effect plug-ins. Nyquist effects can be easily modified in a text editor – or you can even write your own plug-in. Easy editing with Cut, Copy, Paste and Delete. Also unlimited sequential Undo (and Redo) in the session to go back any number of steps. Real-time preview of LADSPA, LV2, VST and Audio Unit (macOS) effects. Plug-in Manager handles plug-in installation.Starting Price: Free -
35
Wasmer
Wasmer
Create apps that run everywhere, publish, share with the community, and deploy to the edge, globally. Serve sandboxed WebAssembly apps anywhere through a single runtime and do in days what others do in months. Using a binary for each platform and chip is the past. Rise above with lightweight containerized apps that simply run everywhere. Supports almost every programming language. Truly universal, runs everywhere & fast as native. Packages are limited by their languages no more. Collaborate across stacks, leverage the ecosystem, and contribute your own packages. Get the scalability of serverless and the reusability of the cloud. Deploy to the edge, save your users time and yourself money. Faster, affordable & indefinitely scalable. All languages are fully containerized & collaborative. Plug your own backend, compiler, or runner. Run apps at close to native speed and outperform the competition. -
36
Artlandia SymmetryShop
Artlandia
Artlandia SymmetryShop is all you need to create professional pattern designs in Adobe Photoshop. Now in its fourth release, this plug-in makes the design process quick, easy, and fully automatic. Select a part of an image and the plug-in does the rest. SymmetryShop patterns stay editable forever: refine your source image and rebuild the pattern at any time. Just scribble something and click Make. Voila! The plug-in automatically duplicates selected elements and applies the necessary transformations to make a repeat pattern. Creating geometric patterns is a snap. Put your Illustrator blends in repeat. Edit blend components or change blend options and see your pattern instantly updated. If you have never used blends, you will want to find out about them now. They are fantastic with SymmetryWorks. Once a pattern is created, SymmetryWorks keeps it hot-linked to the seed elements (motif). As soon as you edit the seed, the plug-in immediately updates the pattern.Starting Price: $315.00/one-time -
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pygame
pygame
Pygame is a set of Python modules designed for writing video games. Pygame adds functionality on top of the excellent SDL library. This allows you to create fully featured games and multimedia programs in the python language. Pygame is highly portable and runs on nearly every platform and operating system. Pygame is free. Released under the LGPL license, you can create open-source, freeware, shareware, and commercial games with it. With dual-core CPUs common, and 8-core CPUs cheaply available on desktop systems, making use of multi-core CPUs allows you to do more in your game. Selected pygame functions release the dreaded python GIL, which is something you can do from C code. Uses optimized C and assembly code for core functions. C code is often 10-20 times faster than python code, and assembly code can easily be 100x or more times faster than python code. Comes with many operating systems. Just an apt-get, emerge, pkg_add, or just install away.Starting Price: Free -
38
Autoptimize
Accelera
Remember that time when you tried to make your website load faster, but gave up after you installed some plug-ins and it made everything worse? Well, that will never happen to you again! You will not be alone anymore, because a trusted WordPress specialist will be in close contact with you and inspect your website personally. Along with website optimization, you’ll also get a set of game-changing plugins for game-changing performance. If you’re not wowed with the value you’re getting from this investment, we’ll happily return your payment. Take the burden of installing and configuring Autoptimize off your shoulders. We can install and configure Autoptimize with a critical CSS configuration in the best possible way. We can enhance GZIP Compression, ultimately lowering your webpage loading times and yielding higher scores on speed testing tools. -
39
DesignCraft
ArtCraft
DesignCraft is an open-source page-layout and publishing application for designers, publishers, and other users creating multi-page documents. It provides spreads and parent pages, text and graphic frames, threaded stories, columns, paragraph and character styles, color swatches, and text wrapping for arranging editorial and print-oriented layouts. Typography tools include paragraph composition, hyphenation, optical margin alignment, and baseline grids. Users can work with a documented native file format, import and export IDML, and export PNG images. The application is available as a native desktop program for Windows, macOS, and Linux, with a WebAssembly build for browser use. Command-line workflows, a JSON control channel, and an MCP server support scripted or agent-driven document operations. DesignCraft is free and open source under MIT or Apache-2.0 licensing. The product is in development.Starting Price: $0 -
40
Physgun
Physgun
Physgun is a game server and web hosting provider built for performance and reliability. Specializing in Rust server hosting, Garry's Mod hosting, Minecraft, Palworld, and DayZ, Physgun delivers low-latency servers on overclocked Ryzen 9 9950X hardware with DDR5 memory. Every plan includes DDoS protection, instant deployment, unlimited player slots, and 24/7 support. Physgun also offers VPS hosting, dedicated servers, and web hosting for communities that need more than just a game server. The Physgun Gamepanel gives server owners full control with one-click plugin installation, automatic wipe scheduling, live server metrics, SSH access, and VSCode integration.Starting Price: $4.87/month -
41
CADCraft
ArtCraft
CADCraft is an open-source computer-aided design and drafting application for creating and editing technical drawings. Its interface pairs a command line with a graphical drawing area and tools for 2D geometry, object snaps, layers, properties, dimensions, hatches, blocks, layouts, and plotting. The software reads and writes DXF and DWG files and exports PDF, SVG, and PNG. Users can create floor plans, mechanical part drawings, and other 2D designs, then arrange sheets with paper-space layouts and viewports. CADCraft runs as a native desktop app on Windows, macOS, and Linux, with an additional WebAssembly browser build. A command-line utility, JSON control protocol, and Model Context Protocol server support scripted drawing, inspection, and rendering. The project is under active development.Starting Price: $0 -
42
Hologress Buddy Builder
Hologress
You can export Buddy Builder Digital Humans into game engines and any 3D platform that accepts (.FBX) files. We have a massive library of 3D scanned clothes that you can mix and match to create outfits for your Digital Humans. We also support top tier 3D artists that wish to sell their premium content. Which can be found under Premium Assets in our Asset Browser. All of our content is derived from ultra high resolution 3D scans. Our skin & clothes texture maps are 4K resolution. We have a Unity plug-in releasing very soon. With an Unreal plug-in planned for Q1 of next year. Easy-to-use interactive clothing with real-time cloth physics. Export fully rigged characters, ready for animation. Craft outfits with a verity of styles, equipment & accessories. -
43
SpamAssassin
Apache Software Foundation
Welcome to the home page for the open-source Apache SpamAssassin Project. Apache SpamAssassin is the #1 Open Source anti-spam platform giving system administrators a filter to classify email and block spam (unsolicited bulk email). It uses a robust scoring framework and plug-ins to integrate a wide range of advanced heuristic and statistical analysis tests on email headers and body text including text analysis, Bayesian filtering, DNS blocklists, and collaborative filtering databases. Looking for tips to improve your existing installation? Click here for a variety of topics in our Wiki that might help. SpamAssassin uses a wide variety of local and network tests to identify spam signatures. This makes it harder for spammers to identify one aspect which they can craft their messages to work around. -
44
Jodit
Jodit
Excellent Open Source WYSIWYG editor written in pure TypeScript without using additional libraries. Easy to use, but powerful & additional plugins & extended support & based on opens source version.Starting Price: $99 one-time payment -
45
nvk.tools
nvk.tools
Discover the fastest sound design workflow for Reaper. Generate precise doppler automation based on item peaks. Tweak times and curves for multiple items or groups. Write automation for any plug-in with custom mode. nvk.tools is a suite of Reaper scripts designed to improve the workflows of sound designers working in game audio. They are built for speed and efficiency, allowing you to focus on what matters most creating amazing sounds. The scripts on nvk.tools are entirely focused on the specific needs of game audio. They have been tested by game audio professionals around the world and have been used to ship dozens of titles. They are designed to be intuitive, efficient, and flexible enough to fit your workflow, no matter how complex it may be. The goal of nvk.tools is to help others in the game audio community by providing tools that make their lives easier. Through the use of these tools, sound designers can spend less time on tedious tasks and more time on the creative aspect.Starting Price: $49 one-time payment -
46
IronClaw
Near AI
IronClaw is a secure, open source runtime designed to run autonomous AI agents with strong built-in protections for credentials and system access. It positions itself as a security-focused alternative to OpenClaw, operating inside encrypted enclaves on the NEAR AI Cloud or locally to protect sensitive data throughout execution. It enables users to deploy AI agents quickly through one-click setup while keeping API keys, tokens, and passwords stored in an encrypted vault that the AI itself cannot directly access. IronClaw isolates every tool inside its own WebAssembly sandbox with capability-based permissions and strict resource limits, preventing compromised skills from affecting other parts of the system. It is built in Rust to enforce memory safety at compile time and eliminate common exploit classes such as buffer overflows and use-after-free errors.Starting Price: $20 per month -
47
Apache Geronimo
Apache
Apache Geronimo is an open-source set of projects that are focused on providing JavaEE/JakartaEE libraries and Microprofile implementations. We are actively delivering reusable Java EE components though. They are widely used and still actively maintained! Apache Geronimo provides libraries for the implementations of the Java EE and Jakarta EE specifications. The implementations are also focused on providing OSGi bundle metadata. The goal of XBean project is to create a plugin-based server analogous to Eclipse is a plugin-based IDE. XBean will be able to discover, download and install server plugins from an Internet-based repository. In addition, we include support for multiple IoC systems, support for running with no IoC system, JMX without JMX code, lifecycle and class loader management, and rock-solid Spring integration. Apache Geronimo hosts several Microprofile implementations. Apache Geronimo Arthur is an effort to build a thin layer on top of Oracle GraalVM.Starting Price: Free -
48
Airy Messenger
Airy
From Conversational AI assistants to customer service experiences, own your own conversational platform with open-source Airy. Airy Core is an open source, fully-featured, production-ready conversational platform. With Airy you can process conversational data from a variety of sources. Since Airy's infrastructure is built around Apache Kafka, it can process a large amount of conversations and messages simultaneously and stream the relevant conversational data to wherever you need it. Connect anything from our free open-source live chat plugin to Facebook Messenger & Google's Business Messages to your Airy Core. This is all possible through an ingestion platform that heavily relies on Apache Kafka to process incoming webhook data from different sources. We make sense of the data and reshape it into source-independent contacts, conversations, and messages. -
49
Clover
EJIE Technology
Clover is an extension of Windows Explorer, to add multi-tab functionality similar to Google Chrome browser. After installing Clover, you will be able to open multiple folders within the same window, and you can also add folder bookmarks. Clover currently only supports Windows XP and later versions of Windows (32bit/64bit), and supports the most common languages such as English and Chinese. Clover was a Windows Explorer plug-in integrated into the system, and the externally opened Explorer window was automatically hosted into Clover window. The Clover program does not get any message from the user. Some users use optimization software to disable the TabHelper plug-in, this will result in such a result, open IE’s “Manage Add-ons” menu, and look into “ExplorerWatcher class”. Just like Google Chrome, Clover works with many basic shortcut keys to help you navigate better and faster through your tabbed folders.Starting Price: Free -
50
Boomio
Boomio
Over 75% of e-shop visitors leave without completing purchases. Boomio is a gamified rewards plug-in motivating your customers to make purchase decisions. Maximize visit-to-purchase conversion up to 30%! Incorporate game-like elements and create a more engaging and personalized shopping experience that encourages customers to interact with your brand and leads them to purchase. Increase your visitors engagement by incorporating game-like elements for customers to engage with your e-shop and spend more time on the site. Provide incentives and rewards that encourage customers to return and make more repeat purchases. Personalize users’ shopping experience by customizing rewards and incentives that help to build your brand loyalty. Incorporate gamification into an e-store and create a unique shopping experience that sets you apart in the marketplace.Starting Price: $49 per month
