certifi

Python package for providing Mozilla's CA Bundle.

certifi has been downloaded 30,565,946,199 times in total on PyPI, including 1,655,769,652 in the last 30 days. The latest version is 2026.5.20, released May 20, 2026. It is distributed under the MPL-2.0 license.

Version2026.5.20
Downloads
30.57G
LicenseMPL-2.0
AuthorKenneth Reitz
UpdatedMay 20, 2026

Downloads

Weekly, last 90d.
Includes CI traffic.

VersionsTotal2026.*2025.*
Range
View
Granularity
Group by
CI traffic
Stack: OffCI: Included3 / 74 series
Selected total8.77G
30.6GAll-time
1.7GLast 30 days
62.8MLast 24 h
646.94/sPer second

Version distribution

Share of downloads by released version. Computed over the last quarter.

  • 01

    2026.2.25

    1.6G downloads
    35.9%
  • 02

    2026.4.22

    1.2G downloads
    26.9%
  • 03

    2026.5.20

    899.8M downloads
    20.2%
  • 04

    2026.1.4

    119.0M downloads
    2.7%
  • 05

    2025.7.14

    77.9M downloads
    1.7%
  • 06

    2025.11.12

    68.3M downloads
    1.5%
  • 07

    2025.1.31

    66.1M downloads
    1.5%
  • 08

    2025.4.26

    54.7M downloads
    1.2%
  • 09

    Other

    373.4M downloads
    8.4%

Guess the next day

Thirteen recent days of certifi downloads. Drag the green handle on the right to guess where day fourteen lands.

TRUTH62.8M60.9MWEDTHUFRISATSUNMONTUEWEDTHUFRISATSUNMON