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AddThe fastest way to create an HTML app.
Modern web applications in pure Python. Built on solid web foundations, not the latest fads - with FastHTML you can get started on anything from simple dashboards to scalable web applications in minutes.
FastHTML is a new next-generation web framework for fast, scalable web applications with minimal, compact code.
Fast and low overhead web framework, for Node.js.
Fastify is a web framework highly focused on providing the best developer experience with the least overhead and a powerful plugin architecture. It is inspired by Hapi and Express and as far as we know, it is one of the fastest web frameworks in town.
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FastNetMon is a very high performance DDoS detector built on top of multiple packet capture engines: NetFlow, IPFIX, sFLOW.
Open-source framework for building asynchronous web services that interact with event streams.
FastStream is a powerful and easy-to-use Python framework for building asynchronous services interacting with event streams such as Apache Kafka, RabbitMQ, NATS and Redis.
A modern data client for React & tRPC
Inspired by Relay and GraphQL, fate combines view composition, normalized caching, data masking, Async React features, and tRPC's type safety.
Never take notes during a Zoom call again
Fathom helps you recall and share important moments from your meetings. It’ll even send those moments to your Slack or CRM automatically.
Organize Your Bookmarks.
Organize bookmarks the way your brain actually works A bookmark manager that combines powerful tagging, instant search, and a clean interface that doesn’t break as your library grows.
A tool to detect bugs in Java and C/C++/Objective-C code before it ships
Infer is a static analysis tool - if you give Infer some Java or C/C++/Objective-C code it produces a list of potential bugs. Anyone can use Infer to intercept critical bugs before they have shipped to users, and help prevent crashes or poor performance.
A tool for building website UI toolkits and style guides
Meerkat CRM is a self-hosted personal contact relationship management system for managing contacts, relationships, activities, notes and reminders.
The name derives from the Meerkat as a social animal. Use this software as your digital rolodex.
Wrappers is a Rust framework for developing PostgreSQL Foreign Data Wrappers.
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Simply beautiful open source icons. Feather is a collection of simply beautiful open source icons. Each icon is designed on a 24x24 grid with an emphasis on simplicity, consistency, and flexibility.
Architectural methodology for frontend projects.
Feature-Sliced Design (FSD) is an architectural methodology for scaffolding front-end applications. Simply put, it's a compilation of rules and conventions on organizing code. The main purpose of this methodology is to make the project more understandable and structured in the face of ever-changing business requirements.
Source: Architectures of modern Front-end applications @ BRACKETS' Medium.
Accessibility before any prompt.
A context system for building accessible software by default — for developers and AI, with enforceable rules aligned to WCAG.
A file that teaches the AI you use — Cursor, Claude, Copilot — to build accessible interfaces from the very first line, following the international WCAG 2.2 standard. Nothing to install: one sentence in the right place and you're set.
The Complete Fediverse Directory & Analytics Platform.
FediDB indexes 41,130 servers across 522 software projects, checks every one of them each day, and publishes all of it through a free public API.
lumberjack is an open-source project to update and enhance the event log architecture. lumberjack aims to improve the creation and standardize the content of event logs by implementing the concepts and specifications proposed by the Common Event Expression (CEE).
It's your Operating System.
An innovative platform for hardware, clouds, and containers, built with love by you. 100% Free & Open Source.
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Easily guide your favorite RSS feeds to your pocket account.
Open-source feedback & roadmap tool — feedback boards, public roadmap, AI-assisted changelog. Self-host on Cloudflare Workers, Vercel, or Docker.
Fast, all‑in‑one JavaScript parser and generator for RSS, Atom, RDF, and JSON Feed, with support for popular namespaces and OPML files. Fast, all-in-one parser and generator for RSS, Atom, RDF, and JSON Feed, with support for Podcast, iTunes, Dublin Core, and OPML files.
Feedsmith offers universal and format‑specific parsers that maintain the original feed structure in a clean, object-oriented format while intelligently normalizing legacy elements. Access all feed data without compromising simplicity.
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The best way to make maps on the internet. Map edition & creation web service.
Semantic DataFrames for humans and agents.
fenic turns AI-assisted exploration of structured and unstructured data into reusable, inspectable DataFrame pipelines.
It's a DataFrame query engine for semantic data processing, with AI operators — extract, classify, summarize, embed, semantic join, and more — built into the query model. Use it to turn documents, transcripts, logs, eval traces, tickets, tables, and APIs into typed rows and repeatable workflows.
Carbon is the next-generation cross-platform game engine framework from Fenris Creations Open-source technology for persistent sandbox worlds - Powering EVE Online & EVE Frontier.
Carbon is the next-generation cross-platform game engine framework from Fenris Creations, used to build entire universes where tens of millions of players have experienced emotion invoking journeys through the vastness of space. Every line of code, every pixel, every beat shaped by Carbon pushes the boundaries of virtual worlds.
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Send emails with Ferdinand. An open-source email delivery service.
Open-source email delivery service for developers.
All your services in one place, built by the community.
Ferdium is a desktop app that helps you organize how you use your favourite apps by combining them into one application. It is based on Franz - a software already used by thousands of people - with the difference that Ferdium gives you many additional features and doesn't restrict its usage!
Simple, self-hostable filesharing application with builtin end-to-end encryption.
Unlock the Future of Identity. Modern IAM written in Rust.
A blazing-fast IAM, powered by Rust. Open, secure, ready for your cloud journey.
FerrisKey is an open-source IAM solution designed for modern cloud-native environments. With its high-performance API written in Rust and its intuitive web interface developed in Typescript/React, FerrisKey offers a robust and flexible alternative to traditional IAM solutions.
a fast, modern web server.
Ferron is a fast web server with automatic TLS certificate management, easy configuration, and rock-solid security — so you can go live in minutes.
Fess is very powerful and easily deployable Enterprise Search Server.
Fess is a very powerful and easily deployable Enterprise Search Server. You can quickly install and run Fess on any platform where you can run the Java Runtime Environment. Fess is provided under the Apache License 2.0.
Fess is based on OpenSearch/Elasticsearch, but knowledge/experience about OpenSearch/Elasticsearch is not required. Fess provides an easy to use Administration GUI to configure the system via your browser. Fess also contains a Crawler, which can crawl documents on a web server, file system, or Data Store (such as a CSV or database). Many file formats are supported including (but not limited to): Microsoft Office, PDF, and zip.
Festival, a music player.
Festival is a music player for local album collections.
🚀 A lightweight HTTP library inspired by JavaScript's fetch, bringing simplicity and flexibility to PHP HTTP requests.
FetchPHP is a modern HTTP client library for PHP, built on top of the Guzzle HTTP client, designed to mimic the behavior of JavaScript’s fetch API. Leveraging Matrix for true asynchronous capabilities with PHP Fibers, FetchPHP allows developers to use a JavaScript-like async/await syntax. FetchPHP also offers a fluent API inspired by Laravel's HTTP client, making request building both flexible and readable.
A fast linux usermode x86 and x86-64 emulator.
FEX-Emu allows you to run x86 and x86-64 binaries on an AArch64 Linux host, similar to qemu-user and box86/box64.
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Complex Automation Flow Editor.
The "Third Way" for Home Assistant automations. Node-RED-style visual editing that compiles to 100% native YAML. No external engine required.
Free SVG generators, color tools & web design tools.
fffuel is a collection of color tools and free SVG generators for gradients, patterns, textures, shapes & backgrounds
🌈 This tool makes it easy to generate custom holographic & iridescent backgrounds and textures. Make your designs pop with these twisting, liquid, metallic, futuristic, alien-like, blue & purple textures.
SVG generator for futuristic-looking glowing shapes. A cool tool to generate futuristic-looking SVG shapes that glow. Get your weird on!
SVG generator for subtle or not-so-subtle noise textures. Online SVG Noise Texture Generator by fffuel.
SVGs are awesome! Thanks to math and geometry, SVG graphics give us a standardized way to create images and icons on the web to be displayed at any size without any loss in image quality. Here's an interactive reference to the most popular and/or interesting parts of the SVG spec.
Organisation fédérant les pratiquants de la lecture sportive de journaux serveurs bruts, dans l'optique d'inscrire le sport comme discipline officielle aux Jeux Olympiques.
Organization uniting practitioners of sportive reading of raw server logs, with a view to registering the sport as an official discipline to the Olympic Games.
Visual FFmpeg Command Generator.
A web-based GUI for quickly generating common FFmpeg command-line operations.
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A complete, cross-platform solution to record, convert and stream audio and video.
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- FFmpeg By Example.
- FFmpeg devient fou et intègre l'IA Whisper d'OpenAI pour transcrire vos vidéos @ Korben :fr:.
- Chaining ffmpeg with a Browser Agent @ 100X Bot.
- FFmpeg - Comment normaliser le volume audio proprement avec loudnorm @ Korben :fr:.
- FFMPEG pour les nuls @ Korben :fr:.
- FFmpeg at Meta: Media Processing at Scale @ Engineering at Meta.
- NVIDIA Vulkan Frame Rate Up-Conversion "FRUC" Merged To FFmpeg @ phoronix.
- ffmpeg - Doubler le framerate d'une vidéo avec votre GeForce @ Korben :fr:.
GPU-accelerated ffmpeg without GPU passthrough.
Use GPU-accelerated ffmpeg from anywhere — a Docker container, a VM, or a remote machine — without GPU passthrough or shared filesystems.
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Pronounced "Alix".
This CSS file intends to warn developers about possible risks and mistakes that exist in HTML code. It can also be used to roughly evaluate a site's quality by simply including it as an external stylesheet.
CSS files are available in French, English, Spanish, Greek, Arabic, Portuguese, Russian, Chinese, Polish and Dutch — and leveled or full.
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Lightweight, composable MCP framework for TypeScript.
A small, fetch-first implementation of the Model Context Protocol (MCP) server APIs.
mcp-lite is a ground-up rewrite of the TypeScript MCP SDK. It keeps only the pieces you need to stand up a server: JSON-RPC handling, typed tool definitions, and an HTTP + SSE transport that works anywhere Request and Response are available (Node, Bun, Cloudflare Workers, Deno, Supabase Edge Functions, browsers with Service Workers).
The Kubernetes Connection Manager CLI.
kconnect is a CLI utility that can be used to discover and securely access Kubernetes clusters across multiple operating environments.
Based on the authentication mechanism chosen the CLI will discover Kubernetes clusters you are allowed to access in a target hosting environment (i.e. EKS, AKS, Rancher) and generate a kubeconfig for a chosen cluster.
Your go-to feature voting tool. The simple and elegant feature voting tool
Create a community of users who feedback, vote and discuss the features that really matter to them. Take the guesswork out, learn and build features they really need.
Build complex browser workflows visually. Stack blocks visually to build complex browser workflows and execute them via API.
Figranium is an open-source visual browser automation platform with a block-based editor, built-in scheduling, proxy rotation, and a REST API to run everything.
The elegant TALLkit for Laravel artisans. Filament is a collection of tools for rapidly building beautiful TALL stack apps, designed for humans.
filebrowser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit your files. It allows the creation of multiple users and each user can have its own directory. It can be used as a standalone app.
The best free self-hosted web-based file manager.
FileBrowser Quantum is a massive fork of the file browser open-source project.
Convert & compress everything in 2 clicks!
File Converter is a very simple tool which allows you to convert and compress files using the context menu in windows explorer.
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Convert & compress everything in 2 clicks!
File Converter is a very simple tool which allows you to convert and compress one or several file(s) using the context menu in windows explorer.
Free, Multi-User PHP File Manager.
FileGator is a free, open-source, self-hosted web application for managing files and folders.
You can manage files inside your local repository folder (on your server's hard drive) or connect to other storage adapters (see below).
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Filekey: Encrypt and share files securely with passkeys. Fully offline, easy-to-use, and zero-knowledge for ultimate file protection.
FileKey is an offline web app that lets you quickly encrypt and share files using passkeys. No accounts, no tracking, no backend servers. Just local, offline security powered by passkeys.
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Your files, delivered. Peer-to-peer file transfers in your browser.
Using WebRTC, FilePizza eliminates the initial upload step required by other web-based file sharing services. Because data is never stored in an intermediary server, the transfer is fast, private, and secure.
A free, quiet space for thinking. Private, no data is sent to server.
Free, quiet space for thinking. A simple app for your .md files. Private - no data is sent to server.
Send files securely in real-time.
FileSync is a file sharing web application that allows users to transfer files between multiple devices with end-to-end encryption.