Decision Workspace
char-token-est vs utokenizer vs tokf-common
Side-by-side comparison of Rust crates
48
char-token-est
experimentalv0.1.0
Tokenless byte/char-based token-count estimator for LLM prompts. Per-model-family calibration for Claude, GPT, Gemini, Llama. Zero deps.
45
utokenizer
experimentalv0.1.1
CLI tool for building a local model-tokenizer registry and counting input tokens across model families.
57
tokf-common
experimentalv0.2.45
Shared types and utilities for the tokf CLI tool
Core Metrics
| char-token-est | utokenizer | tokf-common | |
|---|---|---|---|
| Health Score | 48 | 45 | 57 |
| Total Downloads | 13 | 29 | 1.1K |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 0 | 73 |
| Releases | 1 | 2 | 42 |
| Last Updated | 9d ago | 39d ago | 13d ago |
| Age | 9d | 1m | 3m |
Health Breakdown
char-token-est
Maintenance
12
Quality
15
Community
5
Popularity
1
Documentation
15
utokenizer
Maintenance
12
Quality
12
Community
6
Popularity
2
Documentation
13
tokf-common
Maintenance
18
Quality
14
Community
11
Popularity
4
Documentation
10
Technical Details
| char-token-est | utokenizer | tokf-common | |
|---|---|---|---|
| Version | 0.1.0 | 0.1.1 | 0.2.45 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT | MIT |
| Dependencies | 0 | 9 | 8 |
| Crate Size | 8KB | 33KB | 26KB |
| Features | 0 | 0 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2024 |
| MSRV | 1.74 | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •tokf-common leads with a health score of 57/100, but none of the options score above 80.