Authentication

285+ open-source auth tools — OAuth, SSO, passkeys, MFA, and session management. Alternatives to Auth0, Clerk, and Firebase Auth.

Goaccess

GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix syst

Analytics & Metrics
analyticsapachec
Visit → 20350★
Pillow

Python Imaging Library (Fork)

Design & Creative
ccross-platformimage
Visit → 13465★
Libvips

A fast image processing library with low memory needs.

Developer Tools
ccppgif
Visit → 11184★
Smartdns

A local DNS server to obtain the fastest website IP for the best Internet experience, support DoT, D

DevOps & Infrastructure
cdnsdns-over-https
Visit → 10661★
Guilite

✔️The smallest header-only GUI library(4 KLOC) for all platforms

Developer Tools
ccppcross-platform
Visit → 7675★
Oathkeeper

A cloud native Identity & Access Proxy / API (IAP) and Access Control Decision API that authenticate

API Tools
api-gatewaygolanghacktoberfest
Visit → 3542★
Json C

https://github.com/json-c/json-c is the official code repository for json-c. See the wiki for relea

Developer Tools
chacktoberfestjson
Visit → 3255★
Smenu

smenu started as a lightweight and flexible terminal menu generator, but quickly evolved into a powe

CLI Tools
cclicommand-line
Visit → 2481★
Obfus.H

Macro-header for compile-time C obfuscation (tcc, win x86/x64)

Developer Tools
ccompile-timeconfuse
Visit → 1589★
Alexandrie

Self-hosted knowledge base with extended Markdown, Kanban, OIDC/SSO, PWA & offline support. Deploy i

Project Management
dockerkanbanknowledge-base
Visit → 1314★
hx

Hex editor for the terminal using plain C99 + POSIX libs.

CLI Tools
ccliopen-source
Visit → 210★
hed

Lightweight terminal hex editor with vim-style keybindings

CLI Tools
ccliopen-source
Visit → 56★
Compare tools: Lucia Auth vs keyper · keyper vs SSOReady · SSOReady vs Arctic