head to head · open source
iFixAi vs FuzzyAI
iFixAi has 15,323 GitHub stars, 1,333 forks, 2 open issues and last shipped 2 days ago. FuzzyAI has 1,574 stars, 216 forks, 7 open issues and last shipped 7 months ago. iFixAi leads on adoption by 874% (15,323 vs 1,574 stars). iFixAi is written in Python under Apache-2.0; FuzzyAI is written in Jupyter Notebook under Apache-2.0. iFixAi has attracted 9% as many forks as stars, FuzzyAI 14%. iFixAi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai, llm-evaluation), 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
| iFixAi | FuzzyAI | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 1.6K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Jupyter Notebook |
| Last push | 2026-09-16 | 2026-02-06 |
| Forks | ⑂ 1.3K | ⑂ 216 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick iFixAi if
- You weight community size — 15K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick FuzzyAI if
- You want the FuzzyAI feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Jupyter Notebook
- You evaluated both and FuzzyAI fits your workflow better
About iFixAi
iFixAi is an open source Python auditor that answers, in under 120 seconds, whether an AI agent is actually doing the job it is supposed to do — run either by a human operator or by the agent itself.
read the full iFixAi overview →
About FuzzyAI
FuzzyAI is an open source fuzzer for large language model APIs. It lives in the AI security and red teaming ecosystem. It uses automated prompt mutation to test whether a model or API accepts jailbreak attempts. The project helps developers and security researchers find, evaluate, and reduce exposure to harmful or unwanted model behavior.
read the full FuzzyAI overview →
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Frequently asked questions
Is iFixAi or FuzzyAI more popular?
iFixAi has 15,323 GitHub stars and FuzzyAI has 1,574. iFixAi has the larger community by that measure.
Are iFixAi and FuzzyAI free?
Both are open source. iFixAi is licensed under Apache-2.0 and FuzzyAI under Apache-2.0. Neither carries a licence fee.
What is the difference between iFixAi and FuzzyAI?
iFixAi is written in Python and FuzzyAI in Jupyter Notebook. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, iFixAi or FuzzyAI?
Choose iFixAi if you want the larger community (15,323 stars) or its Apache-2.0 licence terms. Choose FuzzyAI if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.