#development-tools

Apache Superset is a Data Visualization and Data Exploration Platform

Scalar is an open-source API platform:　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　🌐 Modern REST API Client　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　📖 Beautiful API References　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　✨ 1st-Class OpenAPI/Swagger Support

Multi-platform SDK for integrating GitHub Copilot Agent into apps and services

Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications

⚓ A collection of high-performance JavaScript tools.

The open source and enterprise-ready webhooks service 🦀

A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.

The adaptive interface system for modern web experiences.

CRC is a tool to help you run containers. It manages local VMs to run a OpenShift 4.x cluster, Microshift or Podman optimized for testing and development purposes

Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.

Fast Rust-based bundler for the web with a modernized webpack API 🦀

A minimal, secure Python interpreter written in Rust for use by AI

A bunch of lints to catch common mistakes and improve your Rust code. Book: https://doc.rust-lang.org/clippy/

Rust rules for Bazel

Viceroy provides local testing for developers working with Compute.

Temporal Rust & Core SDKs

Rust SDK for ACP clients and agents.

Spec compliant GraphQL Tools in Rust.

Rust reflection, serialization, deserialization, pretty printing, etc. — the last proc macro you should need

Codebase intelligence for TypeScript and JavaScript. Free static analysis of code and styles: unused code, duplication, circular deps, complexity hotspots, architecture boundaries, design-system drift. Optional paid runtime layer (Fallow Runtime): hot-path review and cold-path deletion evidence from real production traffic.

Rust version of webpack/enhanced-resolve

RustSec API & Tooling

Control what your AI can see. LeanCTX (Lean Context) is the context intelligence layer for AI agents — one local Rust binary that decides what they read, remembers what they learn, guards what they touch, and proves what they save. 60–90% fewer tokens as the receipt. 76 MCP tools, 30+ agents, local-first.

Rust D-Bus crate.