head to head · open source
devdocs vs ctx
devdocs has 39,462 GitHub stars, 2,643 forks, 196 open issues and last shipped 3 days ago. ctx has 587 stars, 71 forks, 7 open issues and last shipped 18 days ago. devdocs leads on adoption by 6,623% (39,462 vs 587 stars). devdocs is written in Ruby under MPL-2.0; ctx is written in Python under MIT. devdocs has attracted 7% as many forks as stars, ctx 12%. devdocs was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (developer-tools), 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
| devdocs | ctx | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 587 |
| License | MPL-2.0 | MIT |
| Written in | Ruby | Python |
| Last push | 2026-09-15 | 2026-08-31 |
| Forks | ⑂ 2.6K | ⑂ 71 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick devdocs if
- You weight community size — 39K stars and counting
- You want the MPL-2.0 license terms
- Your stack matches Ruby
- You value the larger contributor base for long-term maintenance
pick ctx if
- You want the ctx feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and ctx fits your workflow better
About devdocs
DevDocs is an API documentation browser that combines multiple developer documentations into a single, clean and organized web UI with instant search, offline support, a mobile version, a dark theme and keyboard shortcuts, and it is aimed at developers who need to read and search API and reference documentation quickly.
read the full devdocs overview →
About ctx
ctx Find the cheapest AI coding setup that actually works on your repo. CTX Fit analyzes your repository, tests promising AI coding configurations against real tasks in it, and produces the winning configuration as a reviewable change — in your working tree with apply , or as a pull request with pr . It picks the cheapest setup that reliably works — reliability is a requirement, not a tie break — and if nothing beats what you already have, it says so. The winner is chosen by a fixed rule, not a score: discard every candidate below the reliability floor, then minimize attributable cost, then break ties toward the …
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Frequently asked questions
Is devdocs or ctx more popular?
devdocs has 39,462 GitHub stars and ctx has 587. devdocs has the larger community by that measure.
Are devdocs and ctx free?
Both are open source. devdocs is licensed under MPL-2.0 and ctx under MIT. Neither carries a licence fee.
What is the difference between devdocs and ctx?
devdocs is written in Ruby and ctx 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, devdocs or ctx?
Choose devdocs if you want the larger community (39,462 stars) or its MPL-2.0 licence terms. Choose ctx if its feature set, stack or MIT licence fits better. Both are self-hostable.