Development
Every listing in the Development section, from all 10 categories below.
1551 results, page 49 of 52
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 Internationalization Checker
An online W3C tool that checks a web page's language, character encoding and internationalization settings.
W3C Link Checker
An online W3C tool that finds broken links and anchors on a web page or whole site.
W3C Markup Validation Service
The W3C's free service for checking the markup of HTML and XHTML documents.
W3Techs Site Info
A free web lookup that shows the CMS, programming language, web server and host a site uses.
wafw00f
Command-line tool that identifies and fingerprints web application firewalls in front of a site.
Wakapi
Self-hosted coding time tracker compatible with WakaTime editor plugins.
WAL-G
Archival backup tool for PostgreSQL, MySQL and SQL Server.
Walk
A minimal terminal file navigator that replaces cd and ls for browsing directories.
Warthog
A cross-platform desktop GUI client for calling and testing gRPC services.
watchexec
Watches a folder and reruns a command whenever a file changes, for test loops, linting and rebuilds.
Watchful
A web dashboard for agencies that maintain many WordPress sites, with backups, updates and security scans.
Watchman
A file-watching service that records changes in directory trees and triggers commands when files change.
WAVE
A suite of web accessibility evaluation tools, available online and as browser extensions.
Wave Terminal
A terminal with file previews, a remote file editor, web browsing and AI assistance arranged as blocks in one window.
wayshot
A native command-line screenshot tool for wlroots-based Wayland compositors, written in Rust.
WeasyPrint
A command-line tool and Python library that turns HTML and CSS documents into PDF files.
Web Check
Open-source, self-hostable tool that analyses a website's DNS, security, headers and other public details.
WebAIM Contrast Checker
An online checker that tests foreground and background color contrast against WCAG AA and AAA levels.
Webbkoll
A web-based privacy checker for cookies, third-party requests, HTTPS and security headers.
WebGazer
A hosted service for website, API, port and cron job monitoring with public status pages.
webhint
A customizable linting tool that checks websites for accessibility, speed, compatibility and security problems.
webhook
A lightweight server that runs shell commands when incoming HTTP webhooks match configured hooks.
Webhook Relay
A webhook gateway that receives, transforms and forwards webhooks to public URLs, private servers or localhost.
WebHook Tester
A self-hosted tool for testing and debugging webhooks and HTTP requests on randomly generated URLs.
Webhook.site
A web service that gives you a unique URL and email address to inspect incoming requests.
webhookd
A small webhook server that runs shell scripts and external processes when HTTP requests arrive.
webpack
A module bundler that packages JavaScript, CSS, HTML, WebAssembly and assets into optimized output.
Website Carbon Calculator
Free online tool that estimates the carbon emissions produced when a web page is loaded.
