Open source fast projects
Every project in the registry tagged fast, ranked by real GitHub adoption.
An easy and fast way to create a Python GUI 🐍
⚡️ The fastest key/value storage for React Native. ~30x faster than AsyncStorage!
View disk space usage and delete unwanted data, fast.
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
Free and open-source PDF editor for Windows with a built-in PDF 2.0 engine. View, annotate, OCR, merge, split, crop, rotate, compare, edit text, draw, sign, fil
A fast, lightweight and more productive microservices framework
WebAssembly (Wasm) Interpreter - An efficient, lightweight, and deterministic WebAssembly interpreter for embedded systems and plug-in runtimes.
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, developer-friendly JS/TS dependency vulnerability scanner with local lockfile scanning, OSV matching, direct vs transitive visibility, --fix, JSON output,
Fast and small flat file CMS (5 files). Built with PHP, JSON database.
ReplicaDB is open source tool for database replication, designed for efficiently transferring bulk data between relational and non-relational databases
Related tags
Frequently asked questions
How many open source fast projects are there?
This registry tracks 12 projects tagged fast, with 49,610 GitHub stars between them. The most-adopted is Tkinter-Designer at 10,250 stars.
Are these fast projects free to use?
Yes — 12 of the 12 carry an explicit open-source licence across 4 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?
12 of the 12 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.