head to head · open source
OpenCode vs Aider
OpenCode has 223,899 GitHub stars, 30,104 forks, 5,727 open issues and last shipped yesterday. Aider has 49,888 stars, 5,125 forks, 1,860 open issues and last shipped 6 months ago. OpenCode leads on adoption by 349% (223,899 vs 49,888 stars). OpenCode is written in TypeScript under MIT; Aider is written in Python under Apache-2.0. OpenCode has attracted 13% as many forks as stars, Aider 10%. OpenCode was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| OpenCode | Aider | |
|---|---|---|
| GitHub stars | ★ 224K | ★ 50K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-11-02 | 2026-05-22 |
| Forks | ⑂ 30K | ⑂ 5.1K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenCode if
- You weight community size — 224K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Aider if
- You want the Aider feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and Aider fits your workflow better
About OpenCode
The open source AI coding agent. English 简体中文 繁體中文 한국어 Deutsch Español Français Italiano Dansk 日本語 Polski Русский Bosanski العربية Norsk Português (Brasil) ไทย Türkçe Українська বাংলা Ελληνικά Tiếng Việt Installation [!TIP] Remove versions older than 0.1.x before installing. Desktop App (BETA) OpenCode is also available as a desktop application. Download directly from the releases page or opencode.ai/download. Installation Directory The install script respects the following priority order for the installation path: 1. $OPENCODE INSTALL DIR Custom installation directory 2. $XDG BIN DIR XDG Base Directory…
read the full OpenCode overview →
About Aider
AI Pair Programming in Your Terminal Aider lets you pair program with LLMs to start a new project or build on your existing codebase. Features Cloud and local LLMs Aider works best with Claude 3.7 Sonnet, DeepSeek R1 & Chat V3, OpenAI o1, o3 mini & GPT 4o, but can connect to almost any LLM, including local models. Maps your codebase Aider makes a map of your entire codebase, which helps it work well in larger projects. 100+ code languages Aider works with most popular programming languages: python, javascript, rust, ruby, go, cpp, php, html, css, and dozens more. Git integration Aider automatically commits…
read the full Aider overview →
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Frequently asked questions
Is OpenCode or Aider more popular?
OpenCode has 223,899 GitHub stars and Aider has 49,888. OpenCode has the larger community by that measure.
Are OpenCode and Aider free?
Both are open source. OpenCode is licensed under MIT and Aider under Apache-2.0. Neither carries a licence fee.
What is the difference between OpenCode and Aider?
OpenCode is written in TypeScript and Aider in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenCode or Aider?
Choose OpenCode if you want the larger community (223,899 stars) or its MIT licence terms. Choose Aider if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.