Developer tools
Language runtimes, build tools and the everyday programs a developer installs on a new machine.
607 results, page 20 of 21
Vysor
A desktop and web app that mirrors an Android or iOS phone and lets you control it.
W3C CSS Validation Service
The W3C's free service for checking CSS and style sheets in HTML documents.
W3C Feed Validation Service
A free W3C web service that checks the syntax of Atom and RSS feeds.
W3C Markup Validation Service
The W3C's free service for checking the markup of HTML and XHTML documents.
Wakapi
Self-hosted coding time tracker compatible with WakaTime editor plugins.
Warthog
A cross-platform desktop GUI client for calling and testing gRPC services.
Watchman
A file-watching service that records changes in directory trees and triggers commands when files change.
WeasyPrint
A command-line tool and Python library that turns HTML and CSS documents into PDF files.
webhint
A customizable linting tool that checks websites for accessibility, speed, compatibility and security problems.
Webhook Relay
A webhook gateway that receives, transforms and forwards webhooks to public URLs, private servers or localhost.
webpack
A module bundler that packages JavaScript, CSS, HTML, WebAssembly and assets into optimized output.
websocat
A command-line WebSocket client and server, like netcat or curl for ws:// with socat-style features.
WebSocket King
A web-based client for connecting to, testing and debugging WebSocket servers.
WebXPRT 5
A browser benchmark that scores devices on everyday web tasks built with HTML5, JavaScript and WebAssembly.
WhatFont
Browser extension that identifies the font used on any part of a webpage.
WhatRuns
A free browser extension that shows the technologies a website is built with.
Windmill
An open-source, self-hostable platform for turning scripts into workflows, internal apps and scheduled jobs.
Windsurf Plugins
AI autocomplete and chat plugins for JetBrains, VS Code and other editors.
Wine
An open-source compatibility layer that runs Windows applications and games on Linux, macOS and BSD.
Winetricks
A helper script that installs missing DLLs and runtime libraries and applies tweaks to Wine prefixes.
Wing Python IDE
A Python IDE with a debugger, editor and testing tools, plus features for managing AI coding agents.
WireMock
An open-source tool for mocking HTTP APIs so you can test without real service dependencies.
Wokwi
Browser-based simulator for ESP32, Arduino, and other microcontroller projects.
Woodpecker CI
Lightweight CI/CD engine that runs pipelines for Gitea, Forgejo, GitHub and GitLab.
Working Copy
A Git client for iPhone and iPad that clones, edits, commits and pushes repositories.
XAMPP
Apache, MariaDB, PHP and Perl packaged as one local development stack.
Xinference
An open-source inference server for running language, speech and multimodal models through one API.
XMLValidation.com
A free online tool that checks XML documents for syntax errors and validates them against DTDs or XML schemas.
Xonsh
A cross-platform shell whose language is a superset of Python 3 with shell commands built in.
yamlfmt
Format YAML files consistently from the command line.
