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360username

360username is a web-based username, brand name, and domain availability checker. It queries 150+ platforms in real time, including Instagram, YouTube, TikTok, GitHub, Twitch, Fiverr, and domain registrars, then returns availability results and direct links to the relevant registration pages.

3Cols

3Cols is a cloud-based code snippet manager for storing, organizing, and sharing snippets across boards. It provides browser-based access, a public snippet area, private board sharing, organization management, an API, and a VS Code extension for working with snippets from the editor.

AIDE Memory is a local-first memory layer for AI coding agents and teams. It installs via npm, creates a .aide/ directory, configures MCP tools and editor rules, and stores memories as JSON files in t...

Android Studio

Android Studio is Google’s official integrated development environment for Android app development. It includes an intelligent code editor, Compose design tools, Gradle-based build support, Android Em...

AnyDesk is a remote access and remote support application that connects a client to a remote device over the network. The pricing page shows plans for Solo, Standard, Advanced, and Ultimate, with feat...

Apache NetBeans

Apache NetBeans is an open-source development environment, tooling platform, and application framework. It provides source code editing with syntactic and semantic highlighting, refactoring tools, wiz...

Befonts

Befonts is a font download website that publishes free fonts for personal and commercial design projects. The site organizes fonts by category, style, and trend, and provides browsing, font identification, and text tools alongside individual font download pages.

BlueJ is a Java development environment for beginners and introductory programming courses. It provides a smaller interface than mainstream IDEs, supports object inspection while programs run, and includes a code pad for evaluating Java expressions without compiling.

BootstrapCDN

BootstrapCDN is the official CDN service for Bootstrap and Font Awesome, with additional support for Bootswatch and Bootstrap Icons. It provides production-ready CDN links and copy-ready snippets for CSS and JavaScript assets, helping developers load popular front-end libraries quickly and reliably.

Brackets

Brackets is an open-source code editor that runs on Windows, macOS, Linux, and in web browsers. It provides inline editors for working in context, live preview for real-time HTML and CSS changes, and preprocessor support for common front-end workflows.

Braid

Braid is a group collaboration and chat application that organizes discussions into separate conversations instead of a single shared chatroom. It supports multiple chats, tags, mentions, search, priv...

CapRover

CapRover is a self-hosted platform as a service for deploying and managing web applications and databases on Docker. It provides a web dashboard and CLI for app deployment, SSL setup with Let's Encryp...

cdnjs

cdnjs is a free and open-source content delivery network for serving JavaScript library files and other web assets from a global edge network. It is powered by Cloudflare and exposes a public CDN endpoint that developers can use to load library files on websites.

Chisel

Chisel is a Fossil SCM hosting service that provides a managed home for Fossil repositories. It is designed for teams and individuals who want a simple way to host source code with built-in repository access controls and public sharing options.

Cirun

Cirun is a managed self-hosted GitHub Actions runner service that runs jobs on the user's own cloud infrastructure. It supports AWS, Google Cloud, Azure, Oracle, OpenStack, and DigitalOcean, and integrates with GitHub through runner labels and workflow configuration.

Code::Blocks

Code::Blocks is a free, open-source IDE for C, C++, and Fortran. It uses a plugin-based architecture so functionality such as compiling and debugging can be added through plugins, and it is available across platforms with a consistent interface and workflow.

Coolify

Coolify is an open-source, self-hostable deployment platform for websites, databases, web applications, and Docker-compatible services. It connects to servers over SSH and supports deployment targets such as VPS instances, Raspberry Pi, EC2, DigitalOcean, Linode, and Hetzner.

Core Web Vitals History

Core Web Vitals History is a web tool that fetches historical Core Web Vitals data for a given URL from Google’s CrUX History API. It shows the last 6 months of available data and does not capture or store metrics itself.

CORS Tester

CORS Tester is a web-based tool for checking Cross-Origin Resource Sharing behavior against an API endpoint. It accepts an API URL, origin, HTTP method, optional credentials, custom headers, and request body, then returns preflight response headers and API server response headers for review.

CyberChef is a browser-based web application for analysing, decoding, and transforming data with a drag-and-drop recipe interface. It runs entirely in the browser with no server-side component, and su...

daily.dev

daily.dev is a developer news and community platform that aggregates articles, tools, frameworks, and industry updates into a personalized feed. It is available as a web app and browser extension, with mobile apps for iOS and Android.

deSEC

deSEC is a free DNS hosting service that provides DNS zone management through a web control panel and API documentation. It runs on open-source software and is supported by SSE.

DKIMValidator.com is a web-based email validation service that accepts messages sent to any address at @dkimvalidator.com and then reports DomainKeys, DKIM, SPF, and SpamAssassin results in one place....

drawDB

drawDB is a browser-based database schema editor for designing ER diagrams and generating SQL. It supports visual table creation, relationships, reverse engineering from DDL, and export to SQL, DBML, JSON, or images.

Dubble is a browser extension that records a user's workflow and turns it into step-by-step documentation with screenshots, videos, and editable text. The product supports recording, editing descripti...

Duck DNS

Duck DNS is a dynamic DNS service hosted on AWS. It provides public DNS subdomains that users update from a home computer or router by sending periodic HTTPS posts with the latest external IP address.

dynv6 is a dynamic DNS service for IPv4 and IPv6 addresses. It provides public hostnames for changing addresses and supports assigning hostnames to private hosts without manual NAT or port forwarding setup.

Element

Element is a secure communications platform built on the Matrix open standard. It provides self-hosted and air-gapped messaging, voice and video calls, federation between separate organisations, and administrative controls for enterprise and public-sector deployments.

EveryStep Browser Automation

EveryStep Browser Automation is a browser-based web scripting tool from Dotcom-Monitor that records user actions and replays them in a real browser. It supports desktop and mobile browser testing, scheduled script execution, and alerting when errors are detected.

Excalidraw

Excalidraw is an online whiteboard and diagramming platform designed for fast sketching, collaboration, and sharing. It combines a simple hand-drawn aesthetic with a full-featured editor so teams and ...

Exercism

Exercism is an online programming practice platform that provides language tracks, coding exercises, automated feedback, and human mentoring across 83 programming languages. It supports both local CLI-based workflows and an in-browser editor for solving exercises.

Fibo

Fibo is a poker planning and story estimation web app for agile teams. It lets users create or join a session, start a voting round, and reveal estimates in real time using Fibonacci numbers.

Fizzy

Fizzy is a kanban application for tracking bugs, issues, ideas, and small projects. It provides boards, cards, notifications, webhooks, public board links, auto-close behavior for old cards, and stamps that record who filed items and when.

Font sensei

Font sensei is a Google Fonts browser that organizes the catalog by tag names and lets users filter typefaces by style categories such as condensed, cursive, geometric, handwritten, and more. The land...

FontGet

FontGet is a font database and font generator website that lets users browse, preview, and download fonts for use on websites and desktop systems. The landing page shows category-based navigation, fon...

Fontshare

Fontshare is a font library and distribution platform from Indian Type Foundry that provides downloadable font families for personal and commercial use. The catalog includes both Closed Source fonts under ITF’s Free Font License and Open Source fonts under the SIL Open Font License.

Format JSON Online

Format JSON Online is a browser-based toolkit for formatting, validating, minifying, comparing, and converting JSON. Core processing runs client-side in the browser, so pasted data stays on the user’s device rather than being uploaded to the service.

Free Mail Tester

Free Mail Tester is a web-based email deliverability checker that generates a unique test address, accepts a message sent from a real mail client or campaign tool, and returns a 0 - 100 score with ana...

freeCodeCamp

freeCodeCamp is a nonprofit learning platform that provides browser-based coding lessons, project-based curricula, and verified certifications. The curriculum covers programming, DevOps, cybersecurity...

FreeDNS

FreeDNS is a hosted DNS management service from 1984 that lets users configure and manage domain zones through a web interface. It supports common record types including A, AAAA, CAA, CNAME, MX, SRV, TXT, SSHFP, DNSSEC, TLSA, web request forwarding, and Dynamic DNS.

FreeFlarum

FreeFlarum is a hosted forum service for creating and managing Flarum communities. It provisions a forum instance from a signup form, handles updates and extensions, and provides export support so forum owners can move their data out at any time.

Full Stack open

Full Stack open is a free online course on modern web development from the University of Helsinki. It covers React, Redux, Node.js, MongoDB, GraphQL, TypeScript, React Native, CI/CD, containers, relat...

Gemini

Google Gemini is a personal AI assistant from Google designed to help users write, plan, research, and learn through conversational interactions. It provides a chat-based interface with tools such as ...

Gerrit Code Review

Gerrit Code Review is a web-based code review system for Git repositories. It supports change review workflows, branch administration, access control, submit requirements, labels, continuous integration hooks, and REST and SSH integration for repository management.

GitGud.io is a free and fast Git hosting service built on GitLab and operated by Sapphire. It provides a developer-focused platform for hosting repositories, collaborating on code, and managing projects with a strong emphasis on privacy, reliability, and direct support.

GitHub Pages

GitHub Pages is a static website hosting service for content stored in a GitHub repository. A site is published by editing files in the repository and pushing commits; GitHub then serves the generated pages from the repository source.

Gitter

Gitter is a chat and networking platform for developer communities. It runs on Matrix and connects to the gitter.im homeserver, so users can access rooms through the Gitter web app or any Matrix client they prefer.

Google Fonts

Google Fonts is a catalog of open-source web fonts and icon fonts that can be embedded through Google’s CSS API or self-hosted from downloaded font files. The service includes font families across man...

Google Hosted Libraries

Google Hosted Libraries is a content delivery network for popular open-source JavaScript libraries. It serves versioned library files from ajax.googleapis.com so developers can load common dependencies such as jQuery, jQuery UI, D3.js, Bootstrap, and three.js with a stable URL and browser caching.

Gradio

Gradio is a Python library for building web interfaces around machine learning models and other Python functions. It provides high-level components such as textboxes, images, audio, plots, chatbots, d...

HNcast

HNcast is a web player for Hacker News stories that presents top stories one at a time as brief audio playback. The interface includes story browsing, playback controls, bookmarks, a feed view, and stats pages, with sign-in support for saving user state.

Hoppscotch

Hoppscotch is a developer-first API platform for creating, testing, documenting, and sharing APIs. It is designed to help teams move from prototyping to production without switching tools, and it supports both cloud use and self-hosted deployment.

HTTP Observatory

HTTP Observatory is a Mozilla tool that scans a website’s HTTP headers and related security settings to check compliance with common security best practices.

Hurricane Electric Free DNS is a hosted DNS management portal for forward and reverse DNS zones. It supports dual-stack access over IPv4 and native IPv6, and provides record management for A, AAAA, ALIAS, CNAME, CAA, MX, NS, TXT, SRV, SSHFP, SPF, RP, NAPTR, HINFO, LOC, and PTR records.

IntenseDebate

IntenseDebate is a comment system for blogs and websites that adds threaded replies, reply-by-email, email notifications, commenter profiles, moderation and blacklisting controls, social sign-in, and ...

Internet.nl

Internet.nl is a web-based test tool that checks whether a website, email domain, or internet connection uses modern Internet standards. It runs tests for IPv6, DNSSEC, HTTPS, DMARC, STARTTLS, DANE, and related standards, then reports the results for the entered domain or address.

IntoDNS.ai

IntoDNS.ai is a DNS and email security scanner that runs deterministic checks against a domain and returns evidence for SPF, DKIM, DMARC, DNSSEC, MTA-STS, BIMI, FCrDNS, blacklists, and selected web se...

Jitsi Meet

Jitsi Meet is a web and mobile video conferencing service for starting and joining meetings from a browser or app. The page links to iOS, Android, and F-Droid apps, and also offers a Slack integration for launching meetings from Slack.

jsDelivr

jsDelivr is a free CDN for open source projects that serves JavaScript and ESM assets from npm and GitHub. It supports direct file URLs, version ranges, default entry points, directory listings, on-demand minification, source maps, and combining multiple files.

JSON Swiss

JSON Swiss is a browser-based JSON toolkit that combines formatting, validation, repair, visual table editing, conversion, schema generation, comparison, and code generation in one workflow. The forma...