Open Source Code Editors - Page 3
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Forever Free Full-Stack Observability | Grafana CloudBuilt on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
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SynWrite
Advanced text editor for programmers and Notepad replacement.
SynWrite is a free source code editor, HTML editor, and Notepad replacement for Windows systems. It is a full-featured alternative not only to simple Notepad, but also to professional editors. -
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Ace Editor
Ace (Ajax.org Cloud9 Editor)
Ace is an embeddable code editor written in JavaScript. It matches the features and performance of native editors such as Sublime, Vim and TextMate. It can be easily embedded in any web page and JavaScript application. Ace is maintained as the primary editor for Cloud9 IDE and is the successor of the Mozilla Skywriter (Bespin) project. -
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Lapce
Lightning-fast and Powerful Code Editor written in Rust
Lapce is a GUI-based, next‑generation code editor written in Rust, using native GPU-accelerated rendering (via Floem and wgpu). It aims to deliver VS Code–level productivity with minimal latency, built-in LSP support, modal editing, remote development capabilities, and WASI‑based plugin extensibility. -
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NetPad
A cross-platform C# editor and playground
A cross-platform C# editor and playground. NetPad is a C# playground that lets you run C# code instantly, without the hassle of creating and managing projects. Open NetPad, start coding, hit Run, and see your output immediately. It's that simple. Quickly prototype and test code snippets before incorporating them into your projects. Visualize data interactively for better insights and analysis. Query databases using LINQ or SQL effortlessly. Experiment with new C# features or start learning C# in an intuitive and accessible environment. Create and save your own utility or administration scripts for repeated use. -
Go From AI Idea to AI App FastAccess Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
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Notepad++ MSI
Notepad++ MSI Installer Files
Notepad++ MSI Installer Files. You can take a look at our guides and instructions and multiple versions of Notepad++ MSI installers on our website here: https://techygeekshome.info/notepad-msi-installers/ -
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Phoenix Code Editor
Phoenix is a modern open-source Code Editor for the web
Phoenix is a modern open-source and free software code editor for the web, built for the browser. -
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Void Editor
Open source AI IDE and Cursor alternative
Void is an open-source, AI-powered code editor built as a fork of Visual Studio Code. Designed as a fully transparent and privacy-focused alternative to Cursor or GitHub Copilot, it lets you use AI models locally or via APIs (OpenAI, Claude, Gemini, Ollama, etc.)—without routing data through proprietary servers. Developed by YC-backed startup Glass Devtools, it supports traditional coding features inherited from VS Code, enhanced with in-editor LLM capabilities—autocomplete, inline quick edits, and chat agents, all while giving developers total prompt and data control. -
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Textadept
Fast, and remarkably extensible cross-platform text editor
A fast, minimalist, and remarkably extensible cross-platform text editor. Textadept’s user interface is sleek and simple. Relentlessly optimized for speed and minimalism over the years, the editor consists of less than 2000 lines of C and C++ code, and less than 4000 lines of Lua code. Textadept runs on Windows, macOS and Linux. It also has a terminal version, which is ideal for work on remote machines. Textadept is an ideal editor for programmers who want endless extensibility without sacrificing speed or succumbing to code bloat and featuritis. The editor gives you complete control over the entire application using the Lua programming language. Everything from moving the caret to changing menus and key bindings on the fly to handling core events is possible. Its potential is vast. -
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ToaruOS
Hobby operating system, bootloader, kernel, drivers, C library
ToaruOS is a "complete" operating system for x86-64 PCs and experimental support for ARMv8. While many independent, hobby, and research OSes aim to experiment with new designs, ToaruOS is intended as an educational resource, providing a representative microcosm of functionality found in major desktop operating systems. The OS includes a kernel, bootloader, dynamic shared object linker, C standard library, its own composited windowing system, a dynamic bytecode-compiled programming language, advanced code editor, and dozens of other utilities and example applications. There are no external runtime dependencies and all required source code, totaling roughly 100k lines of (primarily) C, is included in this repository, save for Kuroko, which lives separately. Through out the project, ToaruOS has also attracted quite a few beginner OS developers who have tried to use it as a reference. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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Nyquist
Nyquist is a language for sound synthesis and music composition.
Nyquist is a language for sound synthesis and music composition. It is implemented in C and C++ and runs on Win32, OSX, and Linux. Nyquist combines a powerful functional programming style with efficient signal-processing primitives. Nyquist is also embedded as a scripting language in Audacity. -
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CodeLite
CodeLite: an open source, cross platform C/C++/PHP and JavaScript IDE
codelite is an open-source, cross platform IDE for the C/C++/PHP and JavaScript programming languages (build and tested on Windows 7, 8, ubuntu >=14.04 plus debian, fedora and openSUSE, and Mac OSX 10.8.4). codelite is distributed under the terms of the GPLv2 license If you need help with codelite, please join our forums at: http://forums.codelite.org Visit our download page at: http://codelite.org/support.php The CodeLite Team -
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PHP File Manager
phpFileManager a complete filesystem management tool on a single file.
phpFileManager is a complete filesystem management tool on a single file. A server administration tool using PHP, meant for rapid file access, and also to verify the server configuration and security. The script can be renamed and deployed on an unique known url, and offers password protection.. All dependencies, like images, js and css files, are included inside the same file, so that the script can run even on offline devices, like a local Raspberry Pi, or ESP32 microcontroller. The size of the script is bellow 1Mb, and i want to make it even smaller. To conclude, this script is also a repository of several hand made functions, organized in sections, meant for learning PHP and explore all PHP capabilities. You can learn, copy and use them on your own projects. Help the project with a donation: Will allow the view of two phpFileManager from diferent URLs on the same screen. Like MC (Midnight Commander) does. https://www.dulldusk.com/product/donation-for-phpfilemanager/ -
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Squircle CE
Squircle CE is a fast and free multi-language code editor for Android
Squircle CE is a fast and free multi-language code editor for Android. This repository contains the complete source code and the build instructions for the project. -
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Notepad++ Portable Edition is the Notepad++ source code editor and notepad replacement packaged with an OTBSoft Launcher as a portable app, so you can take it with you on a USB drive, iPod, etc and use it on any computer.
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Skywave Linux
Global Software Defined Radio at Your Fingertips
Updated 2026/01/24: Turn your PC into the ultimate shortwave radio. Skywave Linux is an X86, 64 bit live environment configured for accessing internet accessible software defined radio receivers. With this operating system, you may tune in popular stations or amateur radio, aeronautical, maritime, or other signals received at remote internet servers around the world. For a live map of the best KiwiSDR and WebSDR servers and a nice "click to tune" interface, Use the installed SDR-Map utility to find radio servers and listen from interesting places. Also, I have set up a self-updating SDR Map at https://rx.skywavelinux.com. An internet radio streamer application is also included for popular studio streams. Bring it up with keys [Super] + [S]. SDR software is configured to operate with popular plug-in devices, such as the RTL-SDR dongles, Airspy, and, HackRF radios. Skywave Linux is built on Debian Sid. It is primarily a live environment, but can be fully installed. -
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Atom Beautify
Universal code formatting plugin
atom‑beautify is a universal code formatting plugin for the Atom text editor, offering support for numerous languages and formatter engines to clean or prettify source code. Many users are experiencing issues when installing third-party beautifiers (e.g., Uncrustify, PHP-CS-Fixer, and many more). A possible solution is a "cloud" service that provides remote access to these beautifiers. Atom-Beautify would then communicate with these services, allowing for zero-installation beautification. Some of the supported beautifiers are developed for Node.js and are automatically installed when Atom-Beautify is installed. However, other beautifiers are command-line interface (CLI) applications and require you to manually install them. -
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CP Editor
The IDE for competitive programming
CP Editor is designed for competitive programming. It helps you focus on your algorithms and automates the compilation, execution and testing of your code. It can fetch test cases from different platforms and submit solutions to Codeforces. It automates all that's reasonably possible and allows you to purely focus on your code. Say no to manual efforts of running and testing your code against expected outputs. It can fetch test cases automatically from almost all competitive programming sites. No more copy-pasting! With a single click, you can run your code on multiple test cases and get verdicts. Thanks to CF tools, It can submit your solution directly to codeforces and show you verdict without leaving the editor. -
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KodExplorer
A web based file manager, web IDE / browser based code editor
KodExplorer is a file manager for the web. It is also a web code editor, which allows you to develop websites directly within the web browser. You can run KodExplorer either online or locally, on Linux, Windows, or Mac-based platforms. The only requirement is to have PHP 5 available. Use experience like operating system, Rich context menu, and toolbar, drag, and drop, shortcut keys. All operations with files and folders on a remote server (copy, cut, paste, move, remove, upload, create folder/file, rename, etc.) Flexible configuration of access rights, file types restriction, user, interface and others. Selectable files & folders support (mouse click & Ctrl & Shift & words & Keyboard shortcuts). Background file upload with Drag & Drop HTML5 support; Folder upload with Chrome, Firefox and Edge. Direct extraction to the current working directory. -
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NullAway
A tool to help eliminate NullPointerExceptions (NPEs) in your code
NullAway is a tool to help eliminate NullPointerExceptions (NPEs) in your Java code. To use NullAway, first add @Nullable annotations in your code wherever a field, method parameter, or return value may be null. Given these annotations, NullAway performs a series of type-based, local checks to ensure that any pointer that gets dereferenced in your code cannot be null. NullAway is similar to the type-based nullability checking in the Kotlin and Swift languages, and the Checker Framework and Eradicate null checkers for Java. NullAway is fast. It is built as a plugin to Error Prone and can run on every single build of your code. In our measurements, the build-time overhead of running NullAway is usually less than 10%. NullAway is also practical: it does not prevent all possible NPEs in your code, but it catches most of the NPEs we have observed in production while imposing a reasonable annotation burden, giving a great "bang for your buck." -
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VvvebJs
Drag and drop website builder javascript library
Drag and drop website builder javascript library. Components and blocks/snippets drag and drop. Undo/Redo operations. One or two panels interface. File manager and component hierarchy navigation. Add a new page. Live code editor. Image upload with example PHP script included. Page download or export HTML or save the page on the server with example PHP script included. Components/Blocks list search. Bootstrap 4 components. Youtube, Google maps, Charts.js, etc widgets. By default, the editor comes with Bootstrap 4 and Widgets components and can be extended with any kind of components and inputs. -
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NppToR: R in Notepad++
NppToR provides R auto-completion and code passing between Notepad++ a
Similar to the windows R gui built in editor, NppToR aims to extend the functionality of code passing to the Notepad++ code editor. In addition to passing to the R gui, NppToR provides optional passing to a PuTTY window for passing to an R instance a remote machine. Easy shortcuts are also provided for easy batch execution, with a monitor for longer running scripts. -
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AvalonEdit
The WPF-based text editor component used in SharpDevelop
AvalonEdit is the name of the WPF-based text editor in SharpDevelop 4.x "Mirador" and beyond. It is also being used in ILSpy and many other projects. AvalonEdit is targeting net6.0-windows and net462 TFMs. Because of net6.0-windows, you must have the .NET 6.0 SDK installed on your machine. Visual Studio 2022 Community and up is required for working with the solution (global.json will select the proper SDK to use for building for you). -
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AvaloniaEdit
Avalonia-based text editor (port of AvalonEdit)
This project is a port of AvalonEdit, a WPF-based text editor for Avalonia. -
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MudBlazor
Do more with Blazor, utilizing CSS and keeping Javascript to a minimum
Trusted by thousands of users, from hobby developers to large enterprises. Use MudBlazor to rapidly build amazing web applications without leaving your loved C# language and toolchain. We bring together everything that's required to build amazing Blazor applications that scale from desktop to mobile. Apart from the library itself we also provide templates, a learning platform, theme manager, demo and example projects as well as an online code editor integrated with our documentation and issue tracking. With more to come. We help companies build amazing apps in record time and let them focus on their business instead of buttons, MudBlazor is battle-tested and one of the fastest-improving platforms, and much more. We started MudBlazor with a simple promise, to empower the developer and fully take advantage of what Blazor offers. With MudBlazor you can create exceptional apps without the burden of mastering HTML, CSS and JS and focus your skillset on C#.
