# cobalt vs Concat

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

| | cobalt | Concat |
|---|---|---|
| Score | 83/100 ✓ | 82/100 |
| Rank in category | #1 of 45 in Download Management | #1 of 18 in Video Processing |
| GitHub stars | 45 597 ✓ | 12 409 |
| Stars, last 30 days | +1 813 | +2 410 ✓ |
| Stable releases, 12 months | 0 | 6 ✓ |
| Latest release | — | v0.2.8 · 20 Oct 2026 |
| Setup | Easy | Easy ✓ |
| Official Docker image | Yes ✓ | No |
| License | AGPL-3.0 | AGPL-3.0 |
| Main language | Svelte | Rust |

## Which one should you pick?

cobalt scores 83/100 against 82/100 for Concat, so it is the safer default.

Concat ships more often: 6 stable releases in the past year, against 0 for cobalt.

## Details

- [cobalt](https://selfhost.directory/project/cobalt) (markdown: https://selfhost.directory/project/cobalt.md)
- [Concat](https://selfhost.directory/project/concat) (markdown: https://selfhost.directory/project/concat.md)

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Source: https://selfhost.directory/compare/cobalt-vs-concat