# kroki vs Thumbor

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | kroki | Thumbor |
|---|---|---|
| Score | 68/100 | 72/100 ✓ |
| Rank in category | #4 of 12 in Diagramming | #2 of 13 in Image Processing |
| GitHub stars | 4 387 | 10 528 ✓ |
| Stars, last 30 days | +43 ✓ | +7 |
| Stable releases, 12 months | 10 ✓ | 1 |
| Latest release | v0.34.0 · 25 Oct 2026 ✓ | 7.8.0 · 30 May 2026 |
| Setup | Easy ✓ | Easy |
| Official Docker image | Yes | Yes |
| License | MIT | MIT |
| Main language | JavaScript | Python |

## Which one should you pick?

Thumbor scores 72/100 against 68/100 for kroki, so it is the safer default.

kroki ships more often: 10 stable releases in the past year, against 1 for Thumbor.

kroki is growing faster right now (+43 stars in 30 days).

## Details

- [kroki](https://selfhost.directory/project/kroki) (markdown: https://selfhost.directory/project/kroki.md)
- [Thumbor](https://selfhost.directory/project/thumbor) (markdown: https://selfhost.directory/project/thumbor.md)

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Source: https://selfhost.directory/compare/kroki-vs-thumbor