#debugging

ClassTrace ExplorerNew

An open-source command-line tool that captures what happens when a Java program loads its classes at startup, and turns that into an interactive graph you can explore in a browser.

seedeepNew

A dashboard that shows you exactly what Claude Code is doing in real time — every file it touches, every subagent it spawns, and how much each step is costing you in tokens.

ModelMRINew

A local-first debugging tool that visualizes what's happening inside an AI model — attention, features, and agent steps — without cloud infrastructure.

dogNew

A command-line tool for looking up DNS records that's easier to read than the classic `dig`, with color output and support for encrypted DNS.

witrNew

A free command-line tool that answers "what started this?" for any process, open port, running container or locked file, with a clear chain instead of scattered log digging.

HookwiseNew

A developer tool that gives you an instant public URL to capture, inspect, and replay webhooks.

MCP State TwinNew

A testing framework that gives AI agents deterministic, forkable, stateful sandboxes — so you can run the same starting state through different tool-call sequences and compare results reproducibly.

DeltixNew

Deltix is an AI agent platform that tests your iOS app by carrying out real user tasks described in plain English on a simulator, without writing test scripts.

hwatuNew

Lets a coding agent actually prove a UI change worked — by opening a prewarmed browser window in ~13ms and scoring the pixel difference — instead of the agent just claiming the fix looks right based on the code it wrote.

PreloopNew

Runs your GitHub Actions workflow on your own laptop in an isolated, disposable virtual machine that boots in under 200 milliseconds — so you can see if a change actually passes CI in seconds, without pushing a commit and waiting for a runner.

Sonar

A free command-line tool that shows you exactly what's running on your computer's localhost ports and lets you kill it, replacing the usual mess of lsof, ss, and manually hunting for stuck processes. Not to be confused with the SonarQube code-quality prod

ProofShot

A tool that gives an AI coding assistant a pair of eyes: after it builds a feature, ProofShot opens a real browser, clicks through the feature, and hands you a video and screenshots proving it actually works.

Cline

An open-source AI assistant that lives inside your code editor and can actually make changes across multiple files, run terminal commands, and fix its own mistakes — you approve each step, so it acts more like a careful junior developer than an autocomple

Command Center

A workspace built for the new problem AI coding tools created: your AI assistant can write code faster than you can read it, so Command Center adds guided walkthroughs and diff explanations that help you actually understand and trust what got changed befo

WhatCable

A macOS menu bar app that tells you exactly what a USB-C cable can (and can't) do, and diagnoses why your Mac isn't charging or transferring data at full speed.

GitNexus

A tool that pre-reads your entire codebase and builds a map of how every file and function connects, so an AI coding assistant can find the right piece of code instantly instead of having to search through your whole project every time.

Dadroit V Web

Drop a huge JSON file into your browser tab and browse it like a folder tree — nothing gets uploaded anywhere, so it's safe even for sensitive data.

Replay QA

An AI tool that quietly clicks around your web app like a real visitor, then tells you exactly what broke — and where — before your actual users find out.

Archal

Testing environment that gives AI agents realistic, stateful clones of GitHub, Slack, Stripe and other SaaS tools so bugs get caught before production.

Thunder Client

Lightweight REST/WebSocket/gRPC API client built into VS Code and JetBrains — no app switching, local-first, git-syncable.