Open source for data and AI

748 projects · 100 relicensed

Prefect license, foundation and stars

Pipelines and orchestration · Apache 2.0 (open source) · backed by Prefect · 24,118 stars

GitHub

Prefect is a workflow orchestration framework for building resilient data pipelines in Python.

License history

LICENSE file
Open sourceMar 8, 2022

Prefect Community License 1.0 to Apache 2.0

Prefect 2.0 (Orion) code moved from the Prefect Community License to Apache 2.0.

Latest release

3.8.6 published Sep 14, 2026

About and history
Repository
PrefectHQ/prefect · created Jun 29, 2018
Website
prefect.io
Language
Python
Foundation
None; run by Prefect
Company
Prefect · on Companies · on advisories · on calendar · on marketplaces · on problems · on Releases · on salaries · on socials · on standards · on Titlewave
GitHub detects
Apache-2.0
Stars per week
33 (GitHub weekly snapshots)

Weekly snapshots

Week ofStars
Nov 2, 202624,118
Oct 26, 202624,079
Oct 12, 202624,027
Oct 5, 202623,990
Sep 21, 202623,921

Changes

Stars per weekNov 5, 2026

Gains about 33 stars a week, up from 32.

Stars per weekOct 26, 2026

Gains about 32 stars a week, down from 35.

Stars per weekOct 8, 2026

Gains about 35 stars a week, down from 48.

RelicensedSep 25, 2026

Relicensed from Prefect Community License 1.0 to Apache 2.0.

TrackedSep 24, 2026

Now tracked, from PrefectHQ/prefect on GitHub.