Best Tools for Developers 2026

Browser-based Android debugging tool for seamless development and testing.

Build, test, and debug regular expressions with real-time explanations and code generation.

Debug, monitor, and optimize your LLM applications and AI agents with comprehensive observability.

Debug gRPC, REST, SSE, and WebSocket APIs from a single, privacy-first workspace.

Open-source Kubernetes observability for developers with auto-instrumentation and scriptable debugging.

Ship AI-generated code that works by continuously suggesting fixes and improvements.

Your Open Source AI Coding Agent that writes, debugs, and ships code alongside you.

Collect, organize, and alert on software errors and performance in real-time, affordably.

Automatically corrects errors in your previous console commands with a magnificent app.

All-in-one error tracking, application performance monitoring, and uptime checks for web apps.

A simple, open-source tool to replay HTTP requests for testing and debugging.

AI-powered coding assistance for building, deploying, and operating applications.

Test and develop ChatGPT and MCP apps locally without ngrok or ChatGPT subscription.

A command-line JSON viewer for efficient data exploration and debugging.

Modify HTTP request and response headers directly from your browser for web development and debugging.