# Concat vs Retrieval-based-Voice-Conversion-WebUI

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

| | Concat | Retrieval-based-Voice-Conversion-WebUI |
|---|---|---|
| Score | 82/100 ✓ | 77/100 |
| Rank in category | #1 of 18 in Video Processing | #1 of 15 in Audio Processing |
| GitHub stars | 12 421 | 38 919 ✓ |
| Stars, last 30 days | +2 422 ✓ | +428 |
| Stable releases, 12 months | 6 ✓ | 1 |
| Latest release | v0.2.8 · 20 Oct 2026 ✓ | 2.3.260718 · 21 Jul 2026 |
| Setup | Easy ✓ | Moderate |
| Official Docker image | No | No |
| License | AGPL-3.0 | MIT |
| Main language | Rust | Python |

## Which one should you pick?

Concat scores 82/100 against 77/100 for Retrieval-based-Voice-Conversion-WebUI, so it is the safer default.

Concat ships more often: 6 stable releases in the past year, against 1 for Retrieval-based-Voice-Conversion-WebUI.

If you want the quickest setup, Concat is easier to run; Retrieval-based-Voice-Conversion-WebUI needs more configuration.

Concat is growing faster right now (+2 422 stars in 30 days).

## Details

- [Concat](https://selfhost.directory/project/concat) (markdown: https://selfhost.directory/project/concat.md)
- [Retrieval-based-Voice-Conversion-WebUI](https://selfhost.directory/project/retrieval-based-voice-conversion-webui) (markdown: https://selfhost.directory/project/retrieval-based-voice-conversion-webui.md)

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Source: https://selfhost.directory/compare/concat-vs-retrieval-based-voice-conversion-webui