head to head · open source
Bruno vs optillm
Bruno has 47,022 GitHub stars, 2,888 forks, 1,831 open issues and last shipped yesterday. optillm has 4,280 stars, 388 forks, 23 open issues and last shipped yesterday. Bruno leads on adoption by 999% (47,022 vs 4,280 stars). Bruno is written in JavaScript under MIT; optillm is written in Python under Apache-2.0. Bruno has attracted 6% as many forks as stars, optillm 9%. Bruno 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
| Bruno | optillm | |
|---|---|---|
| GitHub stars | ★ 47K | ★ 4.3K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Python |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 2.9K | ⑂ 388 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Bruno if
- You weight community size — 47K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick optillm if
- You want the optillm 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 optillm fits your workflow better
About Bruno
Bruno is a lightweight, open source API client and IDE for exploring and testing APIs, built for developers and teams who want their request collections stored as plain text in a folder on their own filesystem rather than in a vendor's cloud.
read the full Bruno overview →
About optillm
OptiLLM is a Python project that provides an optimizing inference proxy for large language models. It exposes an OpenAI API compatible endpoint and sits between an application and model providers, allowing callers to request reasoning oriented optimizations without changing model weights or adding training. The project lives in the developer tools and API development ecosystem, and its topics connect it to agents, agentic workflows, API gateways, chain of thought prompting, and generative AI inference.
read the full optillm overview →
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Frequently asked questions
Is Bruno or optillm more popular?
Bruno has 47,022 GitHub stars and optillm has 4,280. Bruno has the larger community by that measure.
Are Bruno and optillm free?
Both are open source. Bruno is licensed under MIT and optillm under Apache-2.0. Neither carries a licence fee.
What is the difference between Bruno and optillm?
Bruno is written in JavaScript and optillm 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, Bruno or optillm?
Choose Bruno if you want the larger community (47,022 stars) or its MIT licence terms. Choose optillm if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.