Best Free Application Development Software - Page 39
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Compare the Top Free Application Development Software as of May 2026 - Page 39
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1
Kadence WP
Kadence WP
Quickly launch with a starter template, and change global colors and fonts. Build new pages with drop-in-ready sections from the design library. You need the tools to make building beautiful sites easy. We know you pour your heart and soul into what you do. To get the best return for your effort, you need an effective website. We work with people like you every day to help create uncompromisingly effective sites. Build with our fast and versatile theme. Launch quickly from one of our vast library of starter templates. Get powerful page building for WordPress. Build any layout you can dream up. Grow your eCommerce revenue with Shop Kit, the most robust WooCommerce extension available. Boost sales and build engaged audiences with lightweight popups, banners, and slide-ins. Page speed and performance of your site are a priority at Kadence. All of our products are constantly optimized for the modern web.Starting Price: $129 per year -
2
GeneratePress
GeneratePress
GeneratePress is a lightweight WordPress theme that focuses on speed, stability, and accessibility. Start your website off in the right direction whether you’re a hobbyist, freelancer, or agency. The free GeneratePress theme focuses on speed, usability, & accessibility above all else. It prioritizes the essentials your website needs in order to achieve optimal performance for your visitors and search engines. Accelerate your workflow with GeneratePress Premium. With hundreds of customization controls, professionally designed starter sites, and block-based theme building, Premium truly takes GeneratePress to the next level. At just a 7.5kb page size, 2 HTTP requests, and zero dependencies, the free theme provides the perfect foundation to help your site hit 100%. GeneratePress is built to the highest coding standards to make sure it plays nicely with all top-rated plugins straight out the gate.Starting Price: $59 per year -
3
Blocksy
Blocksy
Build your next web project visually in minutes, without coding skills. Blocksy is lighter and faster than most similar WordPress themes. Feels fast and numbers confirm that, it is ranked at the top in most speed testing tools. Built from scratch to be 100% compatible with the Gutenberg editor and blocks. Load JavaScript behavior when you really need it using web pack’s support for dynamic imports. Easily build and customize your online store in minutes and start selling like a pro. Blocksy is ready to be translated into any language and doesn’t contain hardcoded strings. Every single line of code is thoughtfully written and is open to changes and new features. Customizer changes are synced in real-time in the preview window without slowing your work flow. Surprise your mobile users by giving them a unique experience while they navigate. Blocksy was built and designed to work with the best WordPress page builders out there, just start creating your most ambitious designs.Starting Price: $49 per year -
4
Neve
Themeisle
Neve’s mobile-first approach, compatibility with AMP, and popular page builders make website building accessible for everyone. Google loves fast websites, so we’ve made sure Neve scores top results on PageSpeed Insights performance tests. We’ve made speed our top priority to make sure your site runs fast. On a default install, Neve took 0.6s to load. We’ve created a lightweight theme without sacrificing flexibility. The total default WordPress install is as tiny as 28KB. Customize and redesign the header and footer of Neve via drag-and-drop components. Pick the way you want the layout to look, contained or full width, and adjust the options. Neve is made for freelancers or hobbyists that want an easy-to-setup and flexible theme. Enjoy the seamless integration with Gutenberg and all your favorite page builders. Change the colors of your site from one place and apply them everywhere. Create multiple color palettes and use them to create consistent designs across your site.Starting Price: $69 per year -
5
Tango
Tango.ai
Tango is a digital adoption and workflow documentation platform that automatically turns processes into step-by-step how-to guides. Using a browser extension, Tango captures workflows in real time and generates polished documentation with screenshots and instructions. Guides can be pinned directly inside software tools so teammates get help exactly when and where they need it. Tango enables users to follow on-screen walkthroughs to complete processes accurately. The platform integrates with knowledge bases, chat tools, and learning systems for easy sharing. Tango also offers analytics to track usage, completion, and points of friction in workflows. This helps organizations standardize processes, reduce errors, and improve software adoption.Starting Price: $22/month -
6
Flow
Flow
It's hard to build smart tools for dynamic languages like JavaScript. Flow understands your code and makes its knowledge available, enabling other smart tools to be built on top of Flow. Making major changes to large codebases can be scary. Flow helps you refactor safely, so you can focus on the changes you want to make, and stop worrying about what you might break. Working in a codebase with lots of developers can make it difficult to keep your master branch working. Flow can help prevent bad rebases. Flow can help protect your carefully designed library from misuse and misinterpretation. And Flow can help you understand the code you wrote six months ago.Starting Price: Free -
7
AutoHotkey
AutoHotkey
Define hotkeys for the mouse and keyboard, remap keys or buttons and autocorrect-like replacements. Creating simple hotkeys has never been easier; you can do it in just a few lines or less! AutoHotkey is a free, open-source scripting language for Windows that allows users to easily create small to complex scripts for all kinds of tasks such as form fillers, auto-clicking, macros, etc. AutoHotkey has easy-to-learn built-in commands for beginners. Experienced developers will love this full-fledged scripting language for fast prototyping and small projects. AutoHotkey gives you the freedom to automate any desktop task. It's small, fast, and runs out of the box. Best of all, it's free, open-source (GNU GPLv2), and beginner-friendly. AutoHotkey provides a simple, flexible syntax allowing you to focus more on the task at hand rather than every single little technicality. It supports not only the popular imperative-procedural paradigm, but also object-oriented and command-based programming.Starting Price: Free -
8
UI.Vision RPA
UI.Vision
Easy automation for busy people. The UI Vision free RPA software (formerly Kantu) automates web and desktop apps on Windows, Mac, and Linux. UI.Vision RPA is a free open-source browser extension that can be extended with local apps for desktop UI automation. The UI Vision core is open-source and guarantees enterprise-grade security. Your data never leaves your machine. Join 100,000+ users and automate workflows on your desktop and in the browser. The visual UI testing commands of UI Vision help web designers and developers to verify and validate the layout of websites and canvas elements. UI Vision can read and recognize images and text inside canvas elements, images, and videos. UI Vision can resize the browser's window in order to emulate various resolutions. This is particularly useful to test layouts on different browser resolutions and to validate visually perfect mobile, web, and native apps.Starting Price: Free -
9
Olvy
Olvy
Stay on top of user feedback, and changelogs, and close the loop 1:1 with your users. Analyse, understand, (and even follow up) on user problems. Align everyone on the plan of action. Improve feature awareness and adoption with an announcements hub. Analyze and identify patterns using our AI. always build the right thing. Send 1:1 messages to your users whenever you ship something they asked for. Convert your insights into tasks for your team. Bring your important announcements directly in-app. Personalize to match your UI, no code is required. Make it easy for your users to browse your past feature updates at their leisure by hosting them on a dedicated site. Improve feature adoption, build a shipping cadence, build trust and credibility, and a lot more. Olvy was built from the ground up by an experienced team with security, privacy, and compliance prioritized from day one. Our system is designed to keep your and your users' data secure.Starting Price: $24 per month -
10
Frill
Frill
A better way to collect customer feedback. Capture, organize, and announce product feedback in one place. A clean and simple solution for capturing and managing customer feedback, on the web. Our web platform is wrapped up in a powerful new widget. Fully customizable, embed on your own site. Built for teams that want to ship better products, faster. Manage your entire board from within the same view. Integrate directly with your platform for a seamless user experience. Create as many widgets as you like on all plans. Every word is translatable into your own language. Update Frill with your own brand colors. Keep customers updated with automated emails. Customer feedback is the lifeblood of your product. Capture ideas from your customers and let the most voted and commented-on ideas surface to the top. Integrate the best ideas from customers into your roadmap. Show your customers how their ideas fit into the big picture.Starting Price: $25 per month -
11
Noticeable
Noticeable
Increase product adoption, engage your customers or your team with regular updates, get powerful feedback, and measure satisfaction with beautiful newspages and in-app widgets. Building and delivering are valuable, as sharing updates and collecting feedback too. Noticeable widgets make your changes visible on your pages, in-app, and at the right time. Customers discover what's changed but also how hard you work for them, continuously. Optionally combined with newspages, your users can browse updates, share, and send feedback. Collected reactions provide the right information for improving your product and reducing churn. Noticeable integrates with thousands of other services via Zapier. Forward your changes to Twitter, Facebook, Slack, MailChimp, etc. but also create updates from Github releases, Trello cards, and more. Share about the state of their product: announcements, new features, releases, traffic, or revenue.Starting Price: $29 per month -
12
Loggify
Loggify
Updates are rich in context. Sometimes you need lists of features, sometimes it's more a story with highlighted text. You are free to format the content however works best for your new release. Your team should always be in the loop. Loggify offers a native Slack bot that manages your release notes channel for you, sharing the team-targeted updates and even pushing changes. Share your public release notes where your leads are: On your own page. Simple copy-paste script tag, to add all release notes to your page. Basic styles are applied, but super easy to change styles. Hosted Release Note Page with all your public updates. A simple link with visits counted.Starting Price: €49 per month -
13
Claritee
Claritee
Claritee is a blueprint builder for websites and apps. Assemble the content with drag and drop. Write the text. There are no design elements or fonts, so you can focus on what’s essential, rather than aesthetic details. Add carousels and other interactive elements like forms and graphs. Preview the site, with clickable and interactive elements. Rapidly test several versions at the start of your project, all inside your Claritee blueprint. A blueprint is a central place where all the key decisions for your design are made, and the single source of truth to rely on throughout your design and development process. With blueprints, you can test those decisions by sending previews to stakeholders or users, who can click and navigate through the blueprint just like a real site. Blueprints enable each member of your team to contribute to the design project based on their expert knowledge, so they can help plan the design from the start.Starting Price: $14 per month -
14
Helidon
Helidon
Helidon is a cloud-native, open‑source set of Java libraries for writing microservices that run on a fast web core powered by Netty. Helidon Níma is the first Java microservices framework based on virtual threads. Helidon is designed to be simple to use, with tooling and examples to get you going quickly. Since Helidon is simply a collection of Java libraries running on a fast Netty core, there is no extra overhead or bloat. Helidon supports MicroProfile and provides familiar APIs like JAX-RS, CDI, and JSON-P/B. Our implementation runs on our fast Helidon Reactive WebServer. Helidon Reactive WebServer provides a modern functional programming model and runs on top of Netty. Lightweight, flexible, and reactive, the Helidon WebServer provides a simple-to-use and fast foundation for your microservices. With support for health checks, metrics, tracing, and fault tolerance, Helidon has what you need to write cloud-ready applications that integrate with Prometheus, Jaeger/Zipkin, etc.Starting Price: Free -
15
Dropwizard
Dropwizard
Dropwizard is a Java framework for developing ops-friendly, high-performance, RESTful web services. Dropwizard pulls together stable, mature libraries from the Java ecosystem into a simple, lightweight package that lets you focus on getting things done. Dropwizard has out-of-the-box support for sophisticated configuration, application metrics, logging, operational tools, and much more, allowing you and your team to ship a production-quality web service in the shortest time possible. Dropwizard straddles the line between being a library and a framework. Its goal is to provide performant, reliable implementations of everything a production-ready web application needs. Because this functionality is extracted into a reusable library, your application remains lean and focused, reducing both time-to-market and maintenance burdens. Because you can’t be a web application without HTTP, Dropwizard uses the Jetty HTTP library to embed an incredibly tuned HTTP server directly into your project.Starting Price: Free -
16
restify
restify
A Node.js web service framework optimized for building semantically correct RESTful web services ready for production use at scale. restify optimizes for introspection and performance and is used in some of the largest Node.js deployments on Earth. Running at scale requires tracing problems back to their origin by separating noise from the signal. restify is built from the ground up with post-mortem debugging in mind. Staying true to the spec is one of the foremost goals of the project. You will see references to RFCs littered throughout GitHub issues and the codebase. restify is used by some of the industry's most respected companies to power some of the largest deployments of Node.js on planet Earth—the future of Node.js REST development. Setting up a server is quick and easy. Like many other Node. js-based REST frameworks, restify leverages a Sinatra-style syntax for defining routes and the function handlers that service those routes.Starting Price: Free -
17
hapi
hapi
Build powerful, scalable applications, with minimal overhead and full out-of-the-box functionality, your code, your way. Developed initially to handle Walmart’s Black Friday sales, hapi continues to be the proven choice for enterprise-grade backend needs. When you install hapi, every single line of code you get has been verified. You never have to worry about some deep dependency being poorly maintained (or handed over to someone sketchy). hapi is the only leading node framework without any external code dependencies. hapi requires the most secure settings to manage, control, and distribute code, including 2FA for all contributors. Every hapi component comes with the most secure defaults out of the box. Along with protecting server load with payload limits and request timeouts, hapi blocks error messages that could leak information or echo back exploits. The most comprehensive authorization and authentication API available in a Node framework.Starting Price: Free -
18
Vert.x
Vert.x
Handle more requests with fewer resources compared to traditional stacks and frameworks based on blocking I/O. Vert.x is a great fit for all kinds of execution environments, including constrained environments like virtual machines and containers. People told you asynchronous programming is too hard for you? We strive to make programming with Vert.x an approachable experience, without sacrifying correctness and performance. Don’t waste resources, increase deployment density and save money. You pick the model that works best for the task at hand, callbacks, promises, futures, reactive extensions, and (Kotlin) coroutines. Vert.x is a toolkit, not a framework, so it is naturally very composable and embeddable. We have no strong opinion on what your application structure should be like. Select the modules and clients you need and compose them as you craft your application.Starting Price: Free -
19
Grails
Grails
A powerful Groovy-based web application framework for the JVM built on top of Spring Boot. Convention-over-configuration, sensible defaults, opinionated APIs, and the Groovy language combine to make the Grails® framework easy to learn for Java developers. The Grails framework is built on top of Spring Boot and leverages Spring Boot's time-saving features, such as Spring-powered dependency injection. The Grails framework seamlessly and transparently integrates and interoperates with Java, the JVM, and existing Java EE containers. Apache Groovy is a language for the Java platform designed to enhance developers' productivity. It is an optionally-typed and dynamic language but with static-typing and static compilation capabilities. The Grails framework seamlessly integrates with GORM, a data access toolkit that provides a rich set of APIs for accessing relational and non-relational data. GORM also includes implementations for Hibernate (SQL), MongoDB, Cassandra, and Neo4j.Starting Price: Free -
20
GraalVM
GraalVM
Discover libraries and frameworks that work out-of-the-box with Native Image. Apply Graal, an advanced optimizing compiler, that generates faster and leaner code requiring fewer compute resources. Compile Java applications ahead of time to native binaries that start up instantly and deliver peak performance with no warmup time. Leverage the best features and libraries of popular languages in a single app with no overhead. Debug, monitor, profile, and optimize resource consumption in Java and across multiple languages. GraalVM’s high-performance JIT compiler generates optimized native machine code that runs faster, produces less garbage, and uses less CPU thanks to a battery of advanced compiler optimizations and aggressive and sophisticated inlining techniques. The end results are applications that run faster and consume fewer resources, reducing cloud and infrastructure costs.Starting Price: Free -
21
Guidde
Guidde
Create visual documentation your customers and team will love 10x faster. Click capture from our browser extension and go through your workflow, click stop when you’re done. We’ll take it from here. Make it on brand and on-point each time. Record or add text-to-speech voiceover, edit steps in your process, blur sensitive information, and add text, annotations, and custom branding, all with the simplicity of editing a presentation. Share your guidde with one click on any channel. Share internally or externally, and control who you want to have access to. Generate an instant visual article complete with video, images, and text, and embed it in your existing tools like Notion, Zendesk, Salesforce, and many others. Give your customers the personal touch with step-by-step guides they can easily watch and follow without reading through mountains of documentation. Enable anyone in your team to create video-rich guides to explain your product in seconds.Starting Price: $16 per month -
22
Stackable
Stackable
Build fast professional-looking websites with Stackable’s lightweight, and feature-packed blocks. Enjoy all the web design essentials and more with Stackable. Whether you’re a web designer, agency, blogger, or beginner, we help you reach new heights in web design. Confidently create professional-looking websites with our ready-made designs and intuitive page-building tools. Cater to more clients and provide top-notch output in a fast, efficient, and effective way. Streamline your content creation process and grow your reach with blog and content marketing-friendly blocks. Bring to life your designs and give more value to your clients without any development experience. Over 150,000 amazing, lightning-fast websites are designed in Stackable. No matter what industry, our ready-made designs, extensive block collection, UI Kits, and more empower you to do more with WordPress. Find a design that’s perfect for you, your business, or your client.Starting Price: $49 per year -
23
ConTEXT Editor
ConTEXT Editor
ConTEXT is small, fast and powerful text editor for software developers. Unlimited open files, unlimited editing file size length, powerful syntax highlighting for C/C++, Delphi/Pascal, 80x86 assembler, Java, Java Script, Visual Basic, Perl/CGI, HTML, SQL, Python, PHP, Tcl/Tk, user definable syntax highlighter, project workspaces, compiler integration, multi-language support and many more features.Starting Price: $0 -
24
UseCSV
UseCSV
Drop our Importer javascript into your app and your users will experience an easy and powerful data import process. Let users upload data in the format that's most convenient for them, including files from legacy Excel versions. Choose from a library of common validation rules including email, phone, currency and number formats. Imported data is sent as JSON to your backend by webhook. Alternatively, use the JS callback option and keep data local to the browser. Replace your data import process with a well designed and intuitive experience. We've researched common challenges people face, and designed a process that holds their hand every step of the way. Format validation happens before data is imported to your app. Our in-browser spreadsheet editor means users can fix validation errors immediately, without having to go back into Excel.Starting Price: $19 per month -
25
Hubble
Hubble.ai
Hubble is a powerful no-code platform for creating AI-enabled applications with no engineers. Hubble lets you create simple and intuitive web-apps powered by cutting-edge AI models, like GPT-3. Design and create interactive web applications via our simple drag-and-drop editor. Use the most advanced AI models in your app without worrying about API keys & integrations. Hubble handles all deployments and hosting of apps and AI models on your behalf. Connect your own data sources (via embeddings) to maximize the power of AI. Get inspired by what our community members have created with Hubble.Starting Price: $30 per month -
26
Refraction
Refraction
Refraction is a code-generation tool for developers. It uses AI to generate code for you. You can use it to generate unit tests, documentation, refactor code, and more. Generate code using AI in 34 languages — Assembly, C#, C++, CoffeeScript, CSS, Dart, Elixir, Erlang, Go, GraphQL, Groovy, Haskell, HTML, Java, JavaScript, Kotlin, LaTeX, Less, Lua, MatLab, Objective-C, OCaml, Perl, PHP, Python, R Lang, Ruby, Rust, Sass / SCSS, Scala, Shell, SQL, Swift, and TypeScript. Join thousands of developers around the world using Refraction to generate documentation, create unit tests, refactor code, and more using AI. Use the power of AI to automate the tedious parts of software development like testing, documentation, and refactoring, so you can focus on what matters. Refactor, optimize, fix and style-check your code. Generate unit tests for your code with various test frameworks. Explain the purpose of your code to make it easier to understand.Starting Price: $8 per month -
27
Vega-Altair
Vega-Altair
The Vega-Altair open-source project is not affiliated with Altair Engineering, Inc. With Vega-Altair, you can spend more time understanding your data and its meaning. Altair’s API is simple, friendly and consistent and built on top of the powerful Vega-Lite visualization grammar. This elegant simplicity produces beautiful and effective visualizations with a minimal amount of code. The key idea is that you are declaring links between data columns and visual encoding channels, such as the x-axis, y-axis, color, etc. The rest of the plot details are handled automatically. Building on this declarative plotting idea, a surprising range of simple to sophisticated plots and visualizations can be created using relatively concise grammar.Starting Price: Free -
28
Matplotlib
Matplotlib
Matplotlib is a comprehensive library for creating static, animated, and interactive visualizations in Python. Matplotlib makes easy things easy and hard things possible. A large number of third party packages extend and build on Matplotlib functionality, including several higher-level plotting interfaces (seaborn, HoloViews, ggplot, ...), and a projection and mapping toolkit (Cartopy).Starting Price: Free -
29
InteraxAI
InteraxAI
InteraxAI is a No-Code White Label platform that offers monetizable and embeddable AI Widgets. We offer a wide range of AI widgets that can be easily integrated into your website, blog, or pages. By using InteraxAI's range of AI widgets, you can enhance your user experience and improve engagement. Some of the available widgets include an AI chatbot that can provide users with quick and accurate answers, as well as an image generator that produces personalized images based on user input. These widgets can be customized to suit your unique needs, making it easy to integrate them into your digital platform. With InteraxAI's AI widgets, you can create a more interactive and engaging user experience that will keep your audience coming back for more.Starting Price: $20 per month -
30
Accessibility Cloud
Accessibility Cloud
Test & monitor your websites and documents against WCAG 2.1 and EN 301 549. Accessibility Cloud offers automatic and manual accessibility tests, monitoring and compliance management within the same powerful platform. Automatic testing: Discover errors, occurrences, impact to users with disabilities, whether they are violations, see potential issues, solution suggestions, get in-context learning opportunities, scan documents, highlight problems on top of your site, and so much more. Manual testing: Do manual accessibility tests with industry’s most comprehensive WCAG-EM testing suite which supports automatically assisted tests, multiple guidelines, markdown, in-context learning material, powerful import and export options and so much more. Monitoring: Invite your colleagues, define who gets an email notification for what and let Accessibility Cloud do the rest. It will monitor your site continuously and inform you the moment new accessibility problems are discovered.Starting Price: €49 per month
