Decision Workspace
ass-lsp vs async-lsp vs tower-lsp-server
Side-by-side comparison of Rust crates
35
ass-lsp
experimentalv0.2.0
Language Server Protocol implementation for Advanced SubStation Alpha (ASS/SSA) subtitle format
63
async-lsp
growingv0.2.3
Asynchronous Language Server Protocol (LSP) framework based on tower
63
tower-lsp-server
growingv0.23.0
Language Server Protocol implementation based on Tower
Core Metrics
| ass-lsp | async-lsp | tower-lsp-server | |
|---|---|---|---|
| Health Score | 35 | 63 | 63 |
| Total Downloads | 516 | 410.9K | 431.2K |
| 30d Downloads | 3 | 28.1K | 64.6K |
| Dependents | 0 | 131 | 404 |
| Releases | 1 | 10 | 6 |
| Last Updated | 267d ago | 23d ago | 111d ago |
| Age | 8m | 2y 11m | 1y 2m |
Health Breakdown
ass-lsp
Maintenance
4
Quality
12
Community
6
Popularity
3
Documentation
10
async-lsp
Maintenance
18
Quality
15
Community
11
Popularity
7
Documentation
12
tower-lsp-server
Maintenance
15
Quality
14
Community
12
Popularity
7
Documentation
15
Technical Details
| ass-lsp | async-lsp | tower-lsp-server | |
|---|---|---|---|
| Version | 0.2.0 | 0.2.3 | 0.23.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 13 | 20 | 17 |
| Crate Size | 40KB | 51KB | 69KB |
| Features | 0 | 6 | 4 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2024 |
| MSRV | — | 1.66 | 1.85 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •async-lsp leads with a health score of 63/100, but none of the options score above 80.
- •tower-lsp-server has the most downloads (431.2K), suggesting wider adoption.
- •tower-lsp-server is depended on by 404 crates — strongest ecosystem trust.