Decision Workspace
lodepng vs png_pong vs roka-qr
Side-by-side comparison of Rust crates
71
lodepng
stablev3.12.2
Reading and writing PNG files without system dependencies. Pure Rust port of LodePNG.
67
png_pong
growingv0.11.0
A pure Rust PNG/APNG encoder & decoder
51
roka-qr
experimentalv0.1.1
Zero-dependency QR code encoder + decoder with built-in PNG/PBM I/O — pure Rust, no unsafe.
Core Metrics
| lodepng | png_pong | roka-qr | |
|---|---|---|---|
| Health Score | 71 | 67 | 51 |
| Total Downloads | 2.6M | 9.8M | 39 |
| 30d Downloads | 89.5K | 162.8K | 0 |
| Dependents | 495 | 270 | 0 |
| Releases | 110 | 20 | 3 |
| Last Updated | 98d ago | 32d ago | 4d ago |
| Age | 11y 4m | 6y 10m | 4d |
Health Breakdown
lodepng
Maintenance
14
Quality
16
Community
18
Popularity
8
Documentation
15
png_pong
Maintenance
14
Quality
15
Community
15
Popularity
8
Documentation
15
roka-qr
Maintenance
14
Quality
14
Community
6
Popularity
2
Documentation
15
Technical Details
| lodepng | png_pong | roka-qr | |
|---|---|---|---|
| Version | 3.12.2 | 0.11.0 | 0.1.1 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | Zlib | (Apache-2.0 OR BSL-1.0 OR MIT) AND Zlib | Apache-2.0 OR MIT |
| Dependencies | 4 | 6 | 1 |
| Crate Size | 53KB | 40KB | 69KB |
| Features | 7 | 1 | 0 |
| Yanked % | 57.3% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | 1.72 | 1.91 | 1.85 |
| Owners | 3 (team) | 2 | 1 |
Links
Quick Verdict
- •lodepng leads with a health score of 71/100, but none of the options score above 80.
- •png_pong has the most downloads (9.8M), suggesting wider adoption.
- •lodepng is depended on by 495 crates — strongest ecosystem trust.
- •png_pong, roka-qr are pre-1.0 — API may change.