head to head · open source
devdocs vs nebula
devdocs has 39,461 GitHub stars, 2,643 forks, 196 open issues and last shipped 3 days ago. nebula has 12,395 stars, 1,330 forks, 678 open issues and last shipped 10 days ago. devdocs leads on adoption by 218% (39,461 vs 12,395 stars). devdocs is written in Ruby under MPL-2.0; nebula is written in C++ under Apache-2.0. devdocs has attracted 7% as many forks as stars, nebula 11%. devdocs 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.
← all 8884 open source comparisons
Side by side
| devdocs | nebula | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 12K |
| License | MPL-2.0 | Apache-2.0 |
| Written in | Ruby | C++ |
| Last push | 2026-09-15 | 2026-09-08 |
| Forks | ⑂ 2.6K | ⑂ 1.3K |
| 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 nebula if
- You want the nebula feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C++
- You evaluated both and nebula 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 nebula
NebulaGraph is an open source, distributed graph database written in C++ and released under the Apache 2.0 license. It lives in the graph database ecosystem and appears in the CNCF Database Landscape. The project describes itself as symmetrically distributed, with storage and computing separated into distinct layers, horizontal scalability across nodes, strong data consistency enforced through the RAFT protocol, an OpenCypher compatible query language, role based access control, and a set of graph analytics algorithms. It has been developed for roughly eight years and carries 12,387 stars, 1,330 forks, and 678 op…
read the full nebula overview →
More in Content & Publishing
Related comparisons
More Documentation & Knowledge Base projects
Compare either of these against the rest of the Documentation & Knowledge Base field.
Frequently asked questions
Is devdocs or nebula more popular?
devdocs has 39,461 GitHub stars and nebula has 12,395. devdocs has the larger community by that measure.
Are devdocs and nebula free?
Both are open source. devdocs is licensed under MPL-2.0 and nebula under Apache-2.0. Neither carries a licence fee.
What is the difference between devdocs and nebula?
devdocs is written in Ruby and nebula in C++. 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 nebula?
Choose devdocs if you want the larger community (39,461 stars) or its MPL-2.0 licence terms. Choose nebula if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.