head to head · open source
headroom vs edsl
headroom has 73,967 GitHub stars, 5,712 forks, 643 open issues and last shipped yesterday. edsl has 502 stars, 85 forks, 62 open issues and last shipped yesterday. headroom leads on adoption by 14,634% (73,967 vs 502 stars). headroom is written in Python under Apache-2.0; edsl is written in Python under MIT. headroom has attracted 8% as many forks as stars, edsl 17%. edsl was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (anthropic, llm), 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
| headroom | edsl | |
|---|---|---|
| GitHub stars | ★ 74K | ★ 502 |
| License | Apache-2.0 | MIT |
| Written in | Python | Python |
| Last push | 2026-09-27 | 2026-09-27 |
| Forks | ⑂ 5.7K | ⑂ 85 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick headroom if
- You weight community size — 74K 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 edsl if
- You want the edsl feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and edsl fits your workflow better
About headroom
Headroom is an Apache 2.0 Python library, local proxy, agent wrapper and MCP server that compresses tool outputs, logs, files, RAG chunks and conversation history before they reach an LLM, and it is built for developers running AI coding agents or LLM applications who want to cut token usage without changing the answers they get.
read the full headroom overview →
About edsl
EDSL is a Python domain specific language for designing, running and analysing AI powered surveys and experiments with many agents and language models at once, aimed at computational social scientists, market researchers and teams doing LLM based data labelling.
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Frequently asked questions
Is headroom or edsl more popular?
headroom has 73,967 GitHub stars and edsl has 502. headroom has the larger community by that measure.
Are headroom and edsl free?
Both are open source. headroom is licensed under Apache-2.0 and edsl under MIT. Neither carries a licence fee.
What is the difference between headroom and edsl?
headroom is written in Python and edsl 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, headroom or edsl?
Choose headroom if you want the larger community (73,967 stars) or its Apache-2.0 licence terms. Choose edsl if its feature set, stack or MIT licence fits better. Both are self-hostable.