head to head · open source
promptfoo vs wonderful-prompts
promptfoo has 25,297 GitHub stars, 2,344 forks, 651 open issues and last shipped today. wonderful-prompts has 6,315 stars, 537 forks, 0 open issues and last shipped 26 days ago. promptfoo leads on adoption by 301% (25,297 vs 6,315 stars). promptfoo is written in TypeScript under MIT; wonderful-prompts is written in various languages under MIT. promptfoo has attracted 9% as many forks as stars, wonderful-prompts 9%. promptfoo was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (prompt-engineering), so they are genuine substitutes rather than adjacent tools.
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
| promptfoo | wonderful-prompts | |
|---|---|---|
| GitHub stars | ★ 25K | ★ 6.3K |
| License | MIT | MIT |
| Written in | TypeScript | — |
| Last push | 2026-09-20 | 2026-08-25 |
| Forks | ⑂ 2.3K | ⑂ 537 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick promptfoo if
- You weight community size — 25K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick wonderful-prompts if
- You want the wonderful-prompts feature set and don't need the biggest community
- You prefer the MIT license terms
- You evaluated both and wonderful-prompts fits your workflow better
About promptfoo
Promptfoo is an open source command line tool and TypeScript library for evaluating and red teaming large language model applications, aimed at developers, AI engineers, and security teams who need measurable evidence that a prompt, agent, or retrieval augmented generation pipeline behaves correctly and safely before it reaches users.
read the full promptfoo overview →
About wonderful-prompts
wonderful prompts is a curated, MIT licensed collection of Chinese language ChatGPT prompts hosted on GitHub, built for Chinese speaking users who want a tested library of ready to use prompts instead of composing every instruction themselves.
read the full wonderful-prompts overview →
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Frequently asked questions
Is promptfoo or wonderful-prompts more popular?
promptfoo has 25,297 GitHub stars and wonderful-prompts has 6,315. promptfoo has the larger community by that measure.
Are promptfoo and wonderful-prompts free?
Both are open source. promptfoo is licensed under MIT and wonderful-prompts under MIT. Neither carries a licence fee.
What is the difference between promptfoo and wonderful-prompts?
promptfoo is written in TypeScript and wonderful-prompts in various languages. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, promptfoo or wonderful-prompts?
Choose promptfoo if you want the larger community (25,297 stars) or its MIT licence terms. Choose wonderful-prompts if its feature set, stack or MIT licence fits better. Both are self-hostable.