Stalwart Mail ServervsTransformer Lab
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Stalwart Mail Server | Transformer Lab | |
|---|---|---|
| Score | 79/100 | 61/100 |
| Rank in category | #2 of 16 in Mail Server | #12 of 25 in LLM Inference |
| GitHub stars | 15 479 | 5 199 |
| Stars, last 30 days | +676 | +2 |
| Stable releases, 12 months | 31 | 9 |
| Latest release | v1.0.1 · 28 Oct 2026 | v0.40.1 · 19 Jun 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | Yes | No |
| License | AGPL-3.0-only AND LicenseRef-SEL | AGPL-3.0 |
| Main language | Rust | Python |
Which one should you pick?
Stalwart Mail Server scores 79/100 against 61/100 for Transformer Lab, so it is the safer default.
Stalwart Mail Server ships more often: 31 stable releases in the past year, against 9 for Transformer Lab.
Stalwart Mail Server is growing faster right now (+676 stars in 30 days).
Stalwart Mail Server details →Transformer Lab details →
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