A free Windows-compatible Operating System
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ImageMagick is a free, open-source software suite for creating, editing, converting, and displaying images. It supports 200+ formats and offers powerful command-line tools and APIs for automation, scripting, and integration across platforms.
- imagemagick
- image-conversion
- image-manipulation
- image-processing
Cross-platform, sophisticated frontend for the libretro API. Licensed GPLv3.
- libretro
- c
- retroarch
Audio playback and capture library written in C, in a single source file.
- audio
- playback
- capture
- recording
An open source, portable, easy to use, readable and flexible TLS library, and reference implementation of the PSA Cryptography API. Releases are on a varying cadence, typically around 3 - 6 months between releases.
F-Stack is an user space network development kit with high performance based on DPDK, FreeBSD TCP/IP stack and coroutine API.
The Apache Guacamole proxy daemon (guacd), C API (libguac), and protocol support.
- guacamole
- c
- network-client
- java
https://github.com/json-c/json-c is the official code repository for json-c. See the wiki for release tarballs for download. API docs at http://json-c.github.io/json-c/
- json
- c
- hacktoberfest
The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3! Update to wolfSSL 5.9.1 for the latest CVE fixes.
Rapid spam filtering system.
- c
- rspamd
- lua
- spam-filter
Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.
A lightweight single-header cross-platform library for general windowing
A basic 3D scene implemented with various engines, frameworks or APIs.
- computer-graphics
- graphics-programming
- rendering
- opengl
PCRE2 is a library implementing regular expression pattern matching with a C API
- c
- library
- pattern-matching
- pcre2
OpenID Certified™ OpenID Connect and FAPI 2 Relying Party module for Apache HTTPd
- apache-httpd
- openid-connect
- openidconnect-client
- openidc
id Software's Quake 2 v3.21 with mission packs and Vulkan support (Windows, Linux, macOS, FreeBSD, Raspberry Pi 4)
- vulkan
- vulkan-api
- quake
- quake2
Make your Sonoff Switch compatible with Apple Homekit! 🎉
- sonoff
- homekit
- apple
- esp8266
🗄️ single header json parser for C and C++
- json
- json-api
- c
- cpp
Vulkan API bindings for Go programming language
plpgsql_check is a linter tool (does source code static analyze) for the PostgreSQL language plpgsql (the native language for PostgreSQL store procedures).
- plpgsql
- postgresql
- extension
- c
Go bindings for Lua C API - in progress
A Discord API wrapper library made in C
Turn Amazon Echos (Echo Dot 3, Echo Dot 2, Echo 2) into local Home Assistant voice satellites. Keeps Amazon's mic processing and wake word engine, replaces Alexa with a small C daemon speaking ESPHome or Wyoming. Multiroom music via Music Assistant, Bluetooth speaker and proxy, no cloud.
- assist
- echo-dot
- esphome-api
- home-assistant
Implement one small API on SQLite in any language; we benchmark it on a $12 server (1 vCPU, 2 GB)