Best Dev Tools GitHub Repositories

Coroot is an open-source observability and APM tool with AI-powered Root Cause Analysis. It combines metrics, logs, traces, continuous profiling, and SLO-based alerting with predefined dashboards and inspections.

Simplistic interactive filtering tool

A debugging and profiling tool that can trace and visualize python code execution

Toolkit for building native desktop apps

Fast, Declarative, Reproducible, and Composable Developer Environments using Nix

Digital logic design tool and simulator

SD Maid 2/SE is Android's most thorough cleaning tool.

Gentle-AI configures the AI coding agents you already use: Claude Code, Cursor, OpenCode, Codex, Pi, and more. Choose persistent memory, Organic-Driven Development, curated skills, MCP servers, personas, and optional bounded review. Open source, no agent lock-in.

A tool for mocking HTTP services

Claude Code plugin that replaces the compaction summary with Jev decisions: every tool call and result is scored in one fast request, stale ones are dropped or truncated, everything kept stays verbatim.

RSA attack tool (mainly for ctf) - retrieve private key from weak public key and/or uncipher data

Codebase intelligence for AI and humans: code health scores, auto-generated docs, git analytics, dead code detection, and architectural decisions via MCP.

The Rust toolchain installer

A free, open-source developer workspace. Snippets, notes, HTTP requests, calculations, and dev tools in one local-first app.

The most full featured web-to-app toolkit on Android, a complete APK workshop that runs entirely on your phone

Provides tools to internationalize your application

Serial utility for flashing, provisioning, and interacting with Espressif SoCs

Flink CDC is a streaming data integration tool

The free AI already on your Mac. CLI tool, OpenAI-compatible server, and interactive chat — all on-device via Apple Intelligence. No API keys, no cloud, no downloads.

Aspire is the tool for code-first, extensible, observable dev and deploy.