One command. 25 languages. Universal multi-language runner and smart REPL written in Rust.

A universal code runner and stateful REPL written in Rust. Execute Python, JavaScript, TypeScript, Go, Rust, C, C++, Java, Kotlin, Swift, and 15 more languages with a single command.

• run @ GitHub.

A tiny little JSON parsing library

⚡ UUIDv47 = v4 privacy + v7 performance UUIDv7-in / UUIDv4-out (SipHash-masked timestamp).

uuidv47 lets you store sortable UUIDv7 in your database while emitting a UUIDv4-looking façade at your API boundary. It does this by XOR-masking only the UUIDv7 timestamp field with a keyed SipHash-2-4 stream tied to the UUID’s own random bits.

Up to 100x faster strings for C, C++, CUDA, Python, Rust, Swift, JS, & Go, leveraging NEON, AVX2, AVX-512, SVE, GPGPU, & SWAR to accelerate search, hashing, sorting, edit distances, sketches, and memory ops 🦖

Related contents:

• StringWa.rs on GPUs: Databases & Bioinformatics 🦠 @ Ash's Blog.

AI-assisted SAST, SCA and Secrets Detection. Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.

Semgrep is a fast, open-source, static analysis tool that searches code, finds bugs, and enforces secure guardrails and coding standards. Semgrep supports 30+ languages and can run in an IDE, as a pre-commit check, and as part of CI/CD workflows.

• Sempgrep @ GitHub.

Related contents:

• Keeping Secrets Out of Logs @ allan.reyes.sh.

protocol buffers with small code size.Protocol Buffers for Embedded Systems.

Nanopb is a plain-C implementation of Google's Protocol Buffers data format. It is targeted at 32 bit microcontrollers, but is also fit for other embedded systems with tight (<10 kB ROM, <1 kB RAM) memory constraints.

• Nanopb @ GitHub.

C3 is an evolution, not a revolution: the C-like for programmers who like C.

C3 is a programming language that builds on the syntax and semantics of the C language, with the goal of evolving it while still retaining familiarity for C programmers.

Thanks to full ABI compatibility with C, it's possible to mix C and C3 in the same project with no effort. As a demonstration, vkQuake was compiled with a small portion of the code converted to C3 and compiled with the c3c compiler.

• C3 Language @ GitHub.

Related contents:

• 2025-05-29 # Learning C3 @ alloc.dev.
• Forget Borrow Checkers: C3 Solved Memory Lifetimes With Scopes @ The C3 Blog.

C, Just in Time!

CJIT is a lightweight C interpreter that lets you run C code instantly, without needing to build it first. Just use the executable interpreter: no extra tools, libs, or headers required. Based on Fabrice Bellard's TinyCC and inspired by Terry Davis (HolyC), CJIT brings the power of Just-In-Time execution to C programming.

• CJIT @ GitHub.

C Markdown parser. Fast. SAX-like interface. Compliant to CommonMark specification.

Related contents:

• Why Is This Site Built With C @ Marcelo Fernandes.

Missing Patch Scanner.

Vanir is a source code-based static analysis tool that automatically identifies the list of missing security patches in the target system. By default, Vanir pulls up-to-date CVEs from Open Source Vulnerabilities (OSV) together with their corresponding signatures so that users can transparently scan missing patches for an up-to-date list of CVEs.

Meson® is a project to create the best possible next-generation build system.

Meson is an open source build system meant to be both extremely fast, and, even more importantly, as user friendly as possible.

The main design point of Meson is that every moment a developer spends writing or debugging build definitions is a second wasted. So is every second spent waiting for the build system to actually start compiling code.

• Meson @ GitHub.

libvips is a demand-driven, horizontally threaded image processing library.

It implements around 300 operations covering arithmetic, histograms, convolution, morphological operations, frequency filtering, color, resampling, statistics, and others.

• libvips @ GitHub.

visualize, debug, get AI help for Python, Java, C, C++, and JavaScript.

Python Tutor helps you do programming homework assignments in Python, Java, C, C++, and JavaScript. It contains a unique step-by-step visual debugger and AI tutor to help you understand and debug code.

A Modern Linker 🦠.

mold is a faster drop-in replacement for existing Unix linkers. It is several times quicker than the LLVM lld linker, the second-fastest open-source linker, which I initially developed a few years ago. mold aims to enhance developer productivity by minimizing build time, particularly in rapid debug-edit-rebuild cycles.

Meson is an open source build system meant to be both extremely fast, and, even more importantly, as user friendly as possible.

The main design point of Meson is that every moment a developer spends writing or debugging build definitions is a second wasted. So is every second spent waiting for the build system to actually start compiling code.

Meson @ GitHub.

A high-performance, zero-overhead, extensible Python compiler using LLVM.

Codon is a high-performance Python compiler that compiles Python code to native machine code without any runtime overhead. Typical speedups over Python are on the order of 10-100x or more, on a single thread. Codon's performance is typically on par with (and sometimes better than) that of C/C++. Unlike Python, Codon supports native multithreading, which can lead to speedups many times higher still. Codon grew out of the Seq project.

Vous trouverez sur ce site un certain nombre de ressources pédagogiques (tutoriels, supports de cours, exemples de codes, quiz de validation des connaissances) pour différents langages de programmation. Notre objectif est double : vous aider à monter en compétences sur les différents sujets proposés et devenir une des références francophones dans le domaine.

A generic shell script compiler. Shc takes a script, which is specified on the command line and produces C source code. The generated source code is then compiled and linked to produce a stripped binary executable.

The compiled binary will still be dependent on the shell specified in the first line of the shell code (i.e shebang) (i.e. #!/bin/sh), thus shc does not create completely independent binaries.

Open Computer Vision. Open source machine learning library for computer vision.

• OpenCV @ GitHub.
• OpenCV on Wheels @ GitHub.

Related contents:

• OpenCV Course - Full Tutorial with Python @ freeCodeCamp.org's YouTube.