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tokenizers

v0.22.2 Growing

Provides an implementation of today's most used tokenizers, with a focus on performances and versatility.

Apache-2.0 Edition 2018
#tokenizer#nlp#wordpiece#huggingface#bpe

Quick Verdict

  • !Pre-1.0: API may have breaking changes
  • βœ“Massive adoption (3.6K crates depend on it)
  • !Heavy dependency tree (33 direct deps)
  • βœ“Permissive license (Apache-2.0)

Security

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Downloads
12.7M
Dependents
3.6K
Releases
39
Size
186KB

Deep Insights

πŸ“ˆ
Strong growth momentum

2.1M downloads in the last 30 days (69.8K/day), up 57% from the previous period.

πŸ”—
Widely adopted

3.6K crates depend on tokenizers. Strong ecosystem adoption means battle-tested code and long-term stability.

πŸ”¬
Pre-1.0 for over a year

Despite being 6+ years old, tokenizers hasn't reached 1.0 yet. Expect potential API changes between versions.

πŸ“¦
Heavy dependency tree

33 direct dependencies. Consider the impact on compile times and supply chain complexity.

🌟
Used by top crates

Notable dependents include text-splitter, fastembed, toktrie_hf_tokenizers, xgrammar, lancedb. When high-quality crates choose tokenizers, it's a strong quality signal.

Health Breakdown

Maintenance 12/25

Recency, release consistency, active ratio

Quality 12/25

Yanked ratio, deps, size, maturity, features

Community 16/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 12/15

Docs, repo, license, metadata

Download Trend

Daily downloads Β· last 90 days
46K/day avg+147%
050K100K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.21.4
34%
v0.22.2
24%
v0.21.2
18%
v0.15.2
12%
v0.21.1
12%

Release Timeline

39 releases1 yankedsince 2019
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2019
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2022
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2025
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2026
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Yanked

Feature Flags

default =["progressbar", "onig", "esaxx_fast"]

httpesaxx_fast*rustls-tlsprogressbar*unstable_wasm

README

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Maintainers

Dependencies
33
direct dependencies
Dependents
3.6K
crates depend on tokenizers

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