head to head · open source
devdocs vs nebula
devdocs has 39,596 GitHub stars, 2,656 forks, 196 open issues and last shipped yesterday. nebula has 12,463 stars, 1,342 forks, 678 open issues and last shipped 2 months ago. devdocs leads on adoption by 218% (39,596 vs 12,463 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.
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Side by side
| devdocs | nebula | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 12K |
| License | MPL-2.0 | Apache-2.0 |
| Written in | Ruby | C++ |
| Last push | 2026-11-02 | 2026-09-08 |
| Forks | ⑂ 2.7K | ⑂ 1.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick devdocs if
- You weight community size — 40K 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 — API Documentation Browser DevDocs combines multiple developer documentations in a clean and organized web UI with instant search, offline support, mobile version, dark theme, keyboard shortcuts, and more. DevDocs was created by Thibaut Courouble and is operated by freeCodeCamp. We are currently searching for maintainers Please reach out to the community on Discord if you would like to join the team! Keep track of development news: Join the contributors chat room on Discord Watch the repository on GitHub Table of Contents: Quick Start · Vision · App · Scraper · Commands · Contributing · Documentation ·…
read the full devdocs overview →
About nebula
English 中文 A distributed, scalable, lightning fast graph database NebulaGraph Introduction NebulaGraph is a popular open source graph database that can handle large volumes of data with milliseconds of latency, scale up quickly, and have the ability to perform fast graph analytics. NebulaGraph has been widely used for social media, recommendation systems, knowledge graphs, security, capital flows, AI, etc. See our users. The following lists some of NebulaGraph features: Symmetrically distributed Storage and computing separation Horizontal scalability Strong data consistency by RAFT protocol OpenCypher compatible…
read the full nebula overview →
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Frequently asked questions
Is devdocs or nebula more popular?
devdocs has 39,596 GitHub stars and nebula has 12,463. 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 (39,596 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.