head to head · open source
opcode vs react-ace
opcode has 22,409 GitHub stars, 1,720 forks, 332 open issues and last shipped 2 days ago. react-ace has 4,206 stars, 598 forks, 217 open issues and last shipped 2 days ago. opcode leads on adoption by 433% (22,409 vs 4,206 stars). opcode is written in TypeScript under AGPL-3.0; react-ace is written in TypeScript under MIT. opcode has attracted 8% as many forks as stars, react-ace 14%. opcode 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
| opcode | react-ace | |
|---|---|---|
| GitHub stars | ★ 22K | ★ 4.2K |
| License | AGPL-3.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 1.7K | ⑂ 598 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick opcode if
- You weight community size — 22K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick react-ace if
- You want the react-ace feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and react-ace fits your workflow better
About opcode
opcode is an open source desktop GUI application and toolkit for Claude Code that provides a visual command centre for projects, sessions, custom agents, Model Context Protocol servers, checkpoints, and API usage, aimed at developers who already work with Claude Code from the command line and want a graphical layer over it.
read the full opcode overview →
About react-ace
React Ace is a set of React components that wrap the Ace code editor, published on npm under the MIT licence for developers who need an editable code surface inside a React application.
read the full react-ace overview →
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Frequently asked questions
Is opcode or react-ace more popular?
opcode has 22,409 GitHub stars and react-ace has 4,206. opcode has the larger community by that measure.
Are opcode and react-ace free?
Both are open source. opcode is licensed under AGPL-3.0 and react-ace under MIT. Neither carries a licence fee.
What is the difference between opcode and react-ace?
opcode is written in TypeScript and react-ace in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, opcode or react-ace?
Choose opcode if you want the larger community (22,409 stars) or its AGPL-3.0 licence terms. Choose react-ace if its feature set, stack or MIT licence fits better. Both are self-hostable.