A fast, lightweight code editor. No accounts. No ads. Free forever.
Kodo is built by KerbalMissile and SS-YYC around a few simple ideas: your editor should stay out of your way. Quick setup, syntax highlighting via extensions, and zero friction from launch to coding. We want to make coding human again; no bloat, but still a good user experience.
v2.0.0 is here - Insight, Build/Run, plugin extensions, and a compiler marketplace, all while staying around ~70% lighter than VSCode with no extensions installed.
Released under the GPL-v3.0 license.
🌐 Website · 💬 Join The Discord
- Insight - rebranded CodePredict with error detection, dead/unused code highlighting, per-extension
deadCodeIgnore/deadCodeEntryPoints, and a dedicated settings panel (with.md/.txtblacklist) - Build / Run - one-click Build/Run for projects with custom commands, Batch support, and dropdown editing
- Plugin Extensions - extensions can now add UI and C# code via
IKodoPlugin(type: plugin+plugin: MyPlugin.dll, collectibleAssemblyLoadContext) - Editor Experience - overhauled Search system, improved smart syntax, and improved syntax highlighting, as well as new features.
- Compiler Marketplace - downloadable compilers (21 toolchains) in their own Marketplace tab, plus "add installed compiler via path"
- UI Overhaul - Reworked dialogs, UI elements and screens.
- Optimizations - Significant improvements to code and performance optimization, as well as improved startup times and lag reduction.
| Feature | Description |
|---|---|
| 🧩 Extension Marketplace | Install languages, themes, and plugins via .kox files and compilers via standalone installers |
| 🔍 Insight | Code completion, error detection, and dead-code highlighting - configurable per file type |
| 🔨 Build / Run | Compile and run projects from within Kodo with custom commands |
| 🧑💻 Integrated Terminal | Run code from within Kodo, no extra terminal needed |
| 🎨 Themes | Built-in Dark, Light, and System Default modes + custom extension themes |
| 📁 Folder Support | Browse, auto-refresh, and resize the file explorer; rename inline |
| 🔎 Search | Find in file, file-name search, and project-wide search (Ctrl+Shift+F) |
| 💾 Autosave | Configurable autosave so you never lose work |
| 🔤 Syntax Highlighting | Language support delivered through the extension system |
| 🎨 Color Picker & Smart Editing | Built-in color picker, change-all-occurrences, auto-closing brackets, auto-indent |
| 🖼️ Image Preview | View image files directly in the editor, with zoom |
| 🕓 Recent Files | Jump back into recent files from the home screen |
| 🎮 Discord Rich Presence | Show what you're working on in Discord (optional, toggle in Settings) |
| ⚡ Performance Mode | Disable live GitHub panels and debounce search for large projects |
| 🔄 Background Auto-Updates | Kodo checks GitHub releases and keeps the app and extensions up to date (with progress bar) |
| 🚀 Guided Tutorial | Short built-in walkthrough for first-time setup, revisitable from Settings |
Coming soon: real-time collaborative editing · Linux and macOS support · experimental code optimization · improved .kox language packages · and more!
Releases are available through installers on the Releases page - download, install, and run.
Prerequisites (app): Windows 10 (1809+) or Windows 11. Linux and macOS are currently not supported.
Source users, please refer to CONTRIBUTING.md for required packages.
If you're running from source, feel free to clone the repository and modify code. Make sure all submissions comply with GPL v3.0 and the rules in CONTRIBUTING.md. Feedback, PRs and discussions are always and will always be welcome!
Contributions are welcome. The best ways to help:
- Bug reports - open an Issue with steps to reproduce
- Pull Requests - keep them focused; one change or fix per PR
- Extensions - build a
.kox(language / theme / plugin) or add a compiler and submit it to the marketplace
See CONTRIBUTING.md for full details and rules, including how to build and submit extensions.
© 2026 KerbalMissile and SS-YYC. Licensed under the GPL-v3.0 license. There is an exception to this, see EXTENSIONS_LICENSE.