PyRank
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pybase64

Fast Base64 encoding/decoding in Python
PyPI GitHub Verified repo
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

pybase64 has 23.9M monthly downloads and 181 GitHub stars. Version 1.4.3 supports Python 3.8+, first published in 2017.

It is actively maintained under a permissive license, last released in Dec 2025.

It is used by 110 tracked packages, including sglang, chromadb and vllm.

GitHub topics include base64 and simd.

Downloads
Day
649.2K
Week
4.8M
Month
23.9M
Stars
181
Forks
20
Issues
2
Version
1.4.3

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
44
Adoption
60
Community
20
Provenance
100
How the maintenance status was determined
Last commit
4 days ago
Monthly downloads
23,913,322
• 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
23,913,322
Stars
181
Stars per 1k downloads
0.01
• 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
690,404
Month daily avg
797,111
Momentum
-13.4%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.8
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
BSD-2-Clause
• 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
212 days ago
Total releases
27
Releases/year
3.0
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
5
Monthly downloads
23,913,322
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
24
 
Issue Burden
11.0
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
25.0%
contrib / forks
Stale Release
207d
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

Not all downloads include detailed metadata. Breakdowns reflect the subset that does.

Downloads by OS

Linux 395.7K
Windows 24.1K
macOS 15.3K

Python Versions

3.12
45.0% 192.1K
3.13
21.1% 90.1K
3.11
18.9% 80.8K
3.14
8.8% 37.7K
3.10
6.1% 26.1K

Top Countries

1. US US
350.4K
2. DE DE
12.8K
3. IN IN
10.0K
4. KR KR
7.6K
5. NL NL
6.2K
6. SG SG
5.2K
7. CN CN
5.0K
8. GB GB
4.8K
9. NO NO
3.8K
10. JP JP
3.4K
GitHub Topics
Tags from the package's GitHub repository describing what it does.

Package Information

License
BSD-2-Clause
First Release
July 30, 2017
Last Release
7 months ago
Last Commit
5 days ago
Latest Version
1.4.3
Total Releases
27
Contributors
5
Open PRs
0
Archived
No
Author
Matthieu Darbois
Python Versions
3 3.8 3.9 3.10 3.11 3.12 3.13 3.14
Wheels
cp27 cp310 cp311 cp312 cp313 cp314 cp33 cp34 cp35 cp36 cp37 cp38 cp39 pp310 pp311 pp36 pp37 pp38 pp39
Keywords
base64
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links