No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
tokenizers has 214.2M monthly downloads and 11K GitHub stars. Version 0.23.1 supports Python 3.10+, first published in 2019.
It is actively maintained under a permissive license, last released in Apr 2026.
It is built on top of huggingface-hub. It is used by 1,055 tracked packages, including litellm, transformers and cohere.
GitHub topics include nlp, natural-language-processing and natural-language-understanding.
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
86
Adoption
70
Community
80
Provenance
0
How the maintenance status was determined
Last commit
14 days ago
Monthly downloads
214,154,508
•
Active
Activity within 30 days
Stable
Activity within 31-180 days
Minimal
Activity within 181-365 days, or no activity data
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
214,154,508
Stars
10,861
Stars per 1k downloads
0.05
•
Industry Standard
> 10,000,000 monthly downloads
Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
Community Favorite
> 5 stars per 1k downloads
Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
6,755,480
Month daily avg
7,138,484
Momentum
-5.4%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
>=3.10
Cutting Edge
Minimum supported version is 3.12 or newer
•
Modern
Minimum supported version is 3.9, 3.10, or 3.11
Legacy
Supports 3.8 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
Apache Software License
•
Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
70 days ago
Total releases
119
Releases/year
17.8
•
Rapid
Last release within 365 days and > 12 releases/year
Regular
Last release within 365 days
Slow
Last release 366-730 days ago
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
267
Monthly downloads
214,154,508
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
•
Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
65
Issue Burden
10.5
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
23.5%
contrib / forks
Stale Release
No
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
4.8M
Windows
155.0K
macOS
80.5K
Python Versions
3.12
48.5%
2.3M
3.11
18.3%
888.1K
3.13
17.1%
826.6K
3.10
12.6%
610.8K
3.14
3.5%
169.9K
Top Countries
1.
US
3.2M
US
2.
SG
668.7K
SG
3.
IN
474.8K
IN
4.
DE
91.4K
DE
5.
IE
69.8K
IE
6.
NL
55.8K
NL
7.
CA
53.9K
CA
8.
JP
48.8K
JP
9.
KR
39.9K
KR
10.
GB
38.1K
GB
Dependencies
1
- huggingface-hub <2.0,>=0.16.4
11 optional dependencies
- datasets[testing]
- numpy[testing]
- pytest[testing]
- pytest-asyncio[testing]
- requests[testing]
- ruff[testing]
- setuptools-rust[docs]
- sphinx[docs]
- sphinx-rtd-theme[docs]
- tokenizers[dev]
- ty[testing]
Used By
1055
- litellm
- transformers
- cohere
- chromadb
- crewai
- fastembed
- faster-whisper
- vllm
- voyageai
- langchain-huggingface
- langchain-mistralai
- aider-chat
- curated-transformers
- unclecode-litellm
- model2vec
- keras-hub
- inference-gpu
- pytorch-tokenizers
- torchtune
- aleph-alpha-client
- vllm-cpu
- inference
- gpt-researcher
- phonikud-onnx
- torchtitan
- mempalace
- unique-toolkit
- wordllama
- simpletransformers
- dghs-imgutils
- rapid-mlx
- gamesentenceminer
- vllm-tpu
- optimum-rbln
- autoawq
- langchain-upstage
- ai2-olmo
- anthropic-bedrock
- iatoolkit
- keras-hub-nightly
- mflux
- pyseekdb
- wtpsplit-lite
- litgpt
- auto-coder
- axolotl
- dolma
- vieneu
- geoai-py
- fastembed-gpu
GitHub Topics
Tags from the package's GitHub repository describing what it does.
Package Information
License
Apache Software License
First Release
November 1, 2019
Last Release
2 months ago
Last Commit
2 weeks ago
Latest Version
0.23.1
Total Releases
119
Contributors
267
Open PRs
110
Archived
No
Python Versions
3
3.10
3.11
3.12
3.13
3.14
Wheels
cp310
cp35
cp36
cp37
cp38
cp39
pp310
pp39
Keywords
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh