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Can I use provides browser support tables for front-end web technologies on desktop and mobile browsers. The site lists features, allows users to vote for or submit missing features, and includes third-party tools for embedding tables and checking CSS features.
Internet asset search engine for finding hosts, services, certificates, and exposed infrastructure.
Chaos Frontend Toolkit is a browser extension bundling tools intended to break web apps so developers can find ways to improve them, applying chaos engineering principles to the frontend. It covers areas such as network, timers, history, accessibility, localization and inputs, and is available on Chrome, Firefox and Edge as an open-source GPLv3 project.
Check-Host.net is an online tool for checking the availability of websites, servers, hosts and IP addresses. It offers domain and IP location data from geolocation databases and whois, ping to measure latency and packet loss from servers worldwide, HTTP response checks, DNS record retrieval, TCP and UDP port checks, a subnet calculator, a live server terminal for diagnostics, and API documentation for building monitoring solutions.
ClouDNS is a storage, design, or frontend resource for mockups, assets, UI tools, or web search.
Cloudron is a self-hosted platform for running web apps on one's own server, providing app updates, user management, a built-in mail server, firewall and encrypted backups to external storage. Apps are installed from the Cloudron App Store, and the design allows migration of apps across servers.
Cockpit is a web-based graphical interface for administering Linux servers through a browser. It uses existing system APIs and commands, defaults to normal user logins and privileges, and runs on demand via systemd socket activation. Tasks include managing storage, configuring networks and firewalls, running containers, and managing virtual machines and user accounts.
CodeAstro publishes free source code for web-based projects built with frameworks including Django, Laravel, CodeIgniter, and PHP and MySQL. Listed projects include a student management system, a QR code attendance management system, an online job portal, a real estate website, a membership management system, and a clinic management system.
Codeberg Pages hosts static websites from Git repositories at Codeberg. A public repository named pages, or a pages branch in a public repository, makes the site available at the main subdomain. Site generators such as Jekyll and Hugo can deploy through Forgejo Actions, and deployment can also be configured with a webhook. Custom domains are supported through DNS records.
Colour Contrast Checker is a web tool that checks the contrast between different colour combinations against WCAG standards. It displays pass results for normal and large text and provides background and foreground colour values with copy options.
Component Party is a website that compares JavaScript frameworks side-by-side, including React, Vue, Angular, Svelte and Solid.js. It shows syntax differences, features and code examples for common tasks such as reactivity, templating, styling, loops, events and conditional rendering.
CSS Bed is a collection of classless CSS themes intended as starting points in web development. The site presents themes by name and notes that classless themes are responsive, have good browser support, are small, and require no learning curve for HTML users.
CSS-Tricks Code Snippets is a collection of code snippets for web developers covering HTML, CSS, JavaScript, PHP, WordPress, jQuery and HTAccess. Entries are organized by category and list an author and last updated date.
CodePen tool for converting CSV data into HTML tables for quick web publishing.
DelphiTools is the home of SamplingProfiler, a free code profiler for Delphi, along with DWScript (Delphi Web Script) and other Pascal developer tools. The site also hosts a DWScript documentation compendium and DelphiCodeCoverage.
A web-based tool called JavaScript Deobfuscator that removes common JavaScript obfuscation techniques. It provides an input area, output area, and configurations for simplifying expressions, removing dead branches, and undoing string operations. It also offers specific handling for code obfuscated with Obfuscator.io.
deSEC is a storage, design, or frontend resource for mockups, assets, UI tools, or web search.
DEV Community is a website where software developers discuss and keep up with software development and manage their software careers. It publishes community posts and articles on programming topics and hosts challenges and events, and lists help documentation for writing, editing and scheduling posts and customizing a reading feed.
Devhints is a collection of web development cheatsheets covering topics such as JavaScript, CSS, Git, Docker, and various command line tools. Each sheet is a one-page quick reference with usage examples, links, and snippets. The site also includes guidance on writing cheatsheets and on writing Vim help files.
Devina.io is an online development toolkit offering advanced tools for developers, designers and content editors. It lists 78 tools grouped into categories such as general, data, media, networking and website utilities, including a text diff viewer, JSON viewer and PDF transformer. The PDF transformer is a QPDF GUI for content-preserving transformations including linearization and encryption.
DigitalPlat is a storage, design, or frontend resource for mockups, assets, UI tools, or web search.
Directory Lister is a PHP web directory lister. Its documentation covers changes, features, file search and file hashes. The release notes mention fixes to compressed ZIP downloads, configuration examples and hidden file handling, plus security fixes for path checks and direct-linked content.
Disfora is a comment system added to a website with one script tag. It shows comments, star ratings, polls and forms on pages, with a dashboard for moderation. It works on static sites, CMS platforms and frameworks, with a WordPress plugin. The widget shows no ads and does not track readers for advertisers; the first site is free.
DNSlytics is an online investigation tool for viewing information about IP addresses, domain names and providers. It offers DNS lookups, email testing, WHOIS lookups, and reports on AS/BGP, CIDR and TLD data. Premium website access and a premium API provide additional page views, monitors and data.
