head to head · open source
TiDB vs Chat2DB
TiDB has 40,553 GitHub stars, 6,243 forks, 6,976 open issues and last shipped today. Chat2DB has 28,161 stars, 3,036 forks, 269 open issues and last shipped yesterday. TiDB leads on adoption by 44% (40,553 vs 28,161 stars). TiDB is written in Go under Apache-2.0; Chat2DB is written in Java under a custom or non-standard licence. TiDB has attracted 15% as many forks as stars, Chat2DB 11%. TiDB was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai, database), 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
| TiDB | Chat2DB | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 28K |
| License | Apache-2.0 | Custom / other |
| Written in | Go | Java |
| Last push | 2026-09-20 | 2026-09-19 |
| Forks | ⑂ 6.2K | ⑂ 3.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick TiDB if
- You weight community size — 41K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick Chat2DB if
- You want the Chat2DB feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches Java
- You evaluated both and Chat2DB fits your workflow better
About TiDB
TiDB is an open source, cloud native, distributed SQL database written in Go and licensed under Apache 2.0, aimed at teams that need ACID transactions, real time analytics, and vector search at scale without data silos.
About Chat2DB
Chat2DB is a free, cross platform, AI powered database client and SQL workspace from OtterMind that turns natural language into SQL, built for developers, DBAs, analysts and data teams who want the tool running on their own machine rather than in a vendor's cloud.
read the full Chat2DB overview →
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Frequently asked questions
Is TiDB or Chat2DB more popular?
TiDB has 40,553 GitHub stars and Chat2DB has 28,161. TiDB has the larger community by that measure.
Are TiDB and Chat2DB free?
Both are open source. TiDB is licensed under Apache-2.0, and Chat2DB has no licence declared in this registry. Both are free to self-host.
What is the difference between TiDB and Chat2DB?
TiDB is written in Go and Chat2DB in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, TiDB or Chat2DB?
Choose TiDB if you want the larger community (40,553 stars) or its Apache-2.0 licence terms. Choose Chat2DB if its feature set, stack or Custom / other licence fits better. Both are self-hostable.