Open source fast projects
Every project in the registry tagged fast, ranked by real GitHub adoption.
Super-fast/easy runtime validators and serializers via transformation
OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distribut
The fastest PDF library for Python and Rust. Text extraction, image extraction, markdown conversion, PDF creation & editing. 0.8ms mean, 5× faster than industry
Fast and small flat file CMS (5 files). Built with PHP, JSON database.
Frequently asked questions
How many open source fast projects are there?
This registry tracks 4 projects tagged fast, with 12,668 GitHub stars between them. The most-adopted is typia at 5,911 stars.
Are these fast projects free to use?
Yes — 4 of the 4 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which fast project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these fast projects still maintained?
4 of the 4 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.