head to head · open source
Supabase vs validator
Supabase has 111,102 GitHub stars, 15,806 forks, 1,128 open issues and last shipped today. validator has 1,988 stars, 336 forks, 0 open issues and last shipped 3 days ago. Supabase leads on adoption by 5,489% (111,102 vs 1,988 stars). Supabase is written in TypeScript under Apache-2.0; validator is written in Java under MIT. Supabase has attracted 14% as many forks as stars, validator 17%. Supabase 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
| Supabase | validator | |
|---|---|---|
| GitHub stars | ★ 111K | ★ 2.0K |
| License | Apache-2.0 | MIT |
| Written in | TypeScript | Java |
| Last push | 2026-10-05 | 2026-10-02 |
| Forks | ⑂ 16K | ⑂ 336 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Supabase if
- You weight community size — 111K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick validator if
- You want the validator feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Java
- You evaluated both and validator fits your workflow better
About Supabase
Supabase is an open source, Apache 2.0 licensed Postgres development platform that bundles a dedicated Postgres database with authentication, auto generated APIs, realtime subscriptions, file storage, and edge functions for developers building web, mobile, and AI applications.
read the full Supabase overview →
About validator
The Nu Html Checker (vnu) is an MIT licensed Java tool and HTTP service for catching mistakes in HTML, CSS, and SVG documents, aimed at developers who want command line, scripted, or self hosted web standards validation.
read the full validator overview →
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Frequently asked questions
Is Supabase or validator more popular?
Supabase has 111,102 GitHub stars and validator has 1,988. Supabase has the larger community by that measure.
Are Supabase and validator free?
Both are open source. Supabase is licensed under Apache-2.0 and validator under MIT. Neither carries a licence fee.
What is the difference between Supabase and validator?
Supabase is written in TypeScript and validator 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, Supabase or validator?
Choose Supabase if you want the larger community (111,102 stars) or its Apache-2.0 licence terms. Choose validator if its feature set, stack or MIT licence fits better. Both are self-hostable.