Decision Workspace
polars-jsonschema-bridge vs polars-fastjson vs etl-unit
Side-by-side comparison of Rust crates
47
polars-jsonschema-bridge
experimentalv0.7.0
Bidirectional conversion between JSON Schema and Polars DataTypes
48
polars-fastjson
experimentalv0.3.1
Lenient, schema-aware JSON projection for Polars
41
etl-unit
experimentalv0.1.0
Semantic data model for ETL units — qualities and measurements over subjects and time. Built on Polars.
Core Metrics
| polars-jsonschema-bridge | polars-fastjson | etl-unit | |
|---|---|---|---|
| Health Score | 47 | 48 | 41 |
| Total Downloads | 5.6K | 138 | 21 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 3 | 0 | 0 |
| Releases | 17 | 3 | 1 |
| Last Updated | 275d ago | 15d ago | 63d ago |
| Age | 10m | 15d | 2m |
Health Breakdown
polars-jsonschema-bridge
Maintenance
9
Quality
13
Community
8
Popularity
4
Documentation
13
polars-fastjson
Maintenance
13
Quality
14
Community
6
Popularity
3
Documentation
12
etl-unit
Maintenance
9
Quality
11
Community
6
Popularity
2
Documentation
13
Technical Details
| polars-jsonschema-bridge | polars-fastjson | etl-unit | |
|---|---|---|---|
| Version | 0.7.0 | 0.3.1 | 0.1.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | MIT | MIT OR Apache-2.0 |
| Dependencies | 5 | 3 | 20 |
| Crate Size | 37KB | 27KB | 270KB |
| Features | 0 | 0 | 1 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2024 |
| MSRV | — | 1.88 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •polars-fastjson leads with a health score of 48/100, but none of the options score above 80.
- •polars-jsonschema-bridge has the most downloads (5.6K), suggesting wider adoption.