head to head · open source
prettier vs SWE-agent
prettier has 52,405 GitHub stars, 5,023 forks, 1,462 open issues and last shipped yesterday. SWE-agent has 20,712 stars, 2,264 forks, 102 open issues and last shipped 8 days ago. prettier leads on adoption by 153% (52,405 vs 20,712 stars). prettier is written in JavaScript under MIT; SWE-agent is written in Python under MIT. prettier has attracted 10% as many forks as stars, SWE-agent 11%. prettier 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
| prettier | SWE-agent | |
|---|---|---|
| GitHub stars | ★ 52K | ★ 21K |
| License | MIT | MIT |
| Written in | JavaScript | Python |
| Last push | 2026-11-02 | 2026-10-26 |
| Forks | ⑂ 5.0K | ⑂ 2.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick prettier if
- You weight community size — 52K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick SWE-agent if
- You want the SWE-agent feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and SWE-agent fits your workflow better
About prettier
Opinionated Code Formatter JavaScript · TypeScript · Flow · JSX · JSON CSS · SCSS · Less HTML · Vue · Angular GraphQL · Markdown · YAML Your favorite language? Intro Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re printing it with its own rules that take the maximum line length into account, wrapping code when necessary. Input Output Prettier can be run in your editor on save, in a pre commit hook, or in CI environments to ensure your codebase has a consistent style without devs ever having to post a nit picky comment on a code review ever again!…
read the full prettier overview →
About SWE-agent
[!warning] Most of our current development effort is on mini swe agent, which has superseded SWE agent. It matches the performance performance of SWE agent, while being much simpler. See the FAQ for more details about the differences. Our general recommendation is to use mini SWE agent instead of SWE agent going forward. SWE agent enables your language model of choice (e.g. GPT 4o or Claude Sonnet 4) to autonomously use tools to fix issues in real GitHub repositories, find cybersecurity vulnerabilities, or perform any custom task. ✅ State of the art on SWE bench among open source projects ✅ Free flowing &…
read the full SWE-agent overview →
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Frequently asked questions
Is prettier or SWE-agent more popular?
prettier has 52,405 GitHub stars and SWE-agent has 20,712. prettier has the larger community by that measure.
Are prettier and SWE-agent free?
Both are open source. prettier is licensed under MIT and SWE-agent under MIT. Neither carries a licence fee.
What is the difference between prettier and SWE-agent?
prettier is written in JavaScript and SWE-agent 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, prettier or SWE-agent?
Choose prettier if you want the larger community (52,405 stars) or its MIT licence terms. Choose SWE-agent if its feature set, stack or MIT licence fits better. Both are self-hostable.