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A curated list of open-source alternatives to popular software and services. Each tool is listed in its single most relevant category.

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Open Source Alternatives

A curated list of open-source alternatives to popular software and services. Each tool is listed in its single most relevant category.

Table of Contents


AI & Machine Learning

  • ACI.DEV: Unified MCP server to connect AI agents to 600+ integrations with multi-tenant auth and granular permissions for reliable AI.
  • AnythingLLM: All-in-one AI desktop application for chatting with documents, AI agents, and more, offering local, private, and powerful AI tooling.
  • BLOOM: It is a 176B parameter open-access multilingual language model for text generation and research, supporting 46 languages and 13 programming languages.
  • Botpress: A complete AI agent platform for building powerful AI agents with the latest LLMs. Get started for free.
  • Cody: An enterprise AI code assistant from Sourcegraph, designed to enhance development with codebase context and AI-driven automation.
  • Continue: An open-source AI code assistant that allows developers to create, share, and use custom AI code assistants inside the IDE.
  • CopilotKit: It simplifies integrating production-ready AI copilots into any product, offering customizable UI and seamless data grounding.
  • Falcon LLM: An open-source family of large language models by the UAE's Technology Innovation Institute, offering high-performance AI in varying parameter scales with rich multimodal and multilingual capabilities.
  • Firecrawl: Firecrawl turns any website into LLM-ready data with its web scraping and crawling API, offering clean data for AI applications.
  • Fullmoon: Chat with private and local large language models on Apple devices, fully offline, optimized for Apple silicon.
  • GPT‑NeoX: An open-source, large-scale language model training library and model family developed by EleutherAI, enabling cutting-edge autoregressive model development and deployment.
  • Grit: It automates technical debt fixes by using static analysis and ML to generate pull requests for code cleanup and framework upgrades.
  • Helicone: An open-source LLM observability platform for developers to monitor, debug, and improve production-ready AI applications.
  • Hexabot: An open-source AI chatbot builder for creating and managing custom, multilingual chatbots with a visual editor and plugin extensibility.
  • Khoj: Your open, personal AI research copilot. Get answers from your docs or the web, build custom agents, and schedule automations.
  • LLM Foundry: An open-source framework by MosaicML for training, fine-tuning, and deploying large language models across GPUs at scale.
  • LLMChat: AI-powered research with agentic workflows and a variety of models for advanced productivity and deeper insights.
  • Langfuse: An open-source LLM engineering platform for traces, evals, prompt management, and metrics to improve LLM applications.
  • Leon: An open-source personal assistant that can live on your server, built with Node.js, Python, and AI for automating tasks.
  • Letta: OS for AI agents. Build stateful agents with long-term memory, advanced reasoning, and custom tools using ADE or SDKs.
  • Maybe: Maybe Finance is an open-source personal finance platform with AI assistant, tracking, budgeting, and transaction management features.
  • Mistral AI: It offers frontier AI LLMs, assistants, agents, and services for enterprises, focusing on customization, fine-tuning, and deployment.
  • Moxin-LLM: A fully open-source large language model suite offering reproducible training, open weights, and instruction-tuned variants under the Apache 2.0 license.
  • OLMo: A fully open-source LLM framework from the Allen Institute for AI, providing model weights, training code, data, and evaluation tools in a transparent package.
  • OctoBot Cloud: Automated crypto trading strategies for investors, offering AI-driven tools, crypto baskets, and TradingView integration.
  • OpenLLaMA: An open-source reproduction of Meta AI’s LLaMA models, offering permissively licensed weights in 3B, 7B, and 13B parameter sizes compatible with both PyTorch and JAX.
  • Open WebUI: A self-hosted interface for AI, supporting LLM runners like Ollama and OpenAI-compatible APIs, offering an extensible and offline AI experience.
  • PearAI: An open-source AI code editor with features like AI chat, code creation, and debugging, designed to boost developer productivity.
  • Qwen: An open-source family of large language models developed by Alibaba Cloud, featuring scalable model sizes and versions released under permissive licenses like Apache 2.0 .
  • SWE-agent: It empowers language models to autonomously fix issues in GitHub repositories and perform custom tasks using tools.
  • Scira: Scira AI is a minimalistic AI-powered search engine designed to help users efficiently find information on the internet.
  • Steel‑LLM: A fully open-source, 1B-parameter Chinese-centric language model trained from scratch, with complete access to code, data, checkpoints, and logs under the Apache 2.0 license.
  • Supermemory: The universal memory API for the AI era. Stop building retrieval from scratch. Personalise LLMs for your users.
  • Tersa: An open-source canvas for visualizing and building AI workflows with drag-and-drop functionality and integrations with leading AI providers.
  • TinyLLaMA: A compact, open-source LLaMA-based language model (~1.1 B parameters) pretrained on trillions of tokens under the Apache 2.0 license.
  • Trieve: AI platform that provides search, chat, and recommendation capabilities via API and widgets for building AI applications.
  • Upscayl: A free and open-source AI image upscaler for Linux, MacOS, and Windows, enhancing image quality with AI.
  • Weaviate: The AI-native vector database that developers love, designed for building scalable AI applications with ease and flexibility.

Business

  • AITable: Automate workflows with a visual database, connecting to 6,000+ apps via integrations and AI-powered features.
  • Automa: AI-powered RPA platform enabling no-code workflow automation for businesses to automate data work, billing, and optimize processes.
  • Frappe Books: A free, open-source desktop accounting app with a modern UI, designed for simplicity and customizability.
  • Gumroad: Platform to start selling online, experiment with ideas, and get paid. Simple tools for creators to sell various types of products.
  • Horilla: A free and open-source HRMS software designed to automate HR and payroll processes, promoting performance within companies.
  • LittleLink: An open-source, self-hosted alternative to Linktree, offering customizable landing pages for social media links.
  • Wealthfolio: An open-source desktop portfolio tracker for secure, local investment management without subscriptions or cloud storage.

Communication & Collaboration

  • Adapt: It is a lightweight, customizable, and open-source messaging platform focused on user privacy and community building.
  • Chatwoot: Open-source customer engagement platform with AI assistant, omnichannel support, and knowledge base for seamless customer support.
  • Cinny: A Matrix client focused on providing a simple, elegant, and secure interface for decentralized communication.
  • Converse.js: An open-source, web-based XMPP chat client offering self-hosting, customization, and end-to-end encryption for secure messaging.
  • Discourse: A modern, open-source forum software that can be used as a mailing list, discussion forum, or long-form chat room.
  • Element: It is a secure collaboration app using Matrix, offering end-to-end encryption, decentralization, and digital sovereignty for teams.
  • Excalidraw: A virtual collaborative whiteboard tool for easily sketching diagrams with a hand-drawn feel.
  • Jami: A free, open-source communication platform offering secure, private, and decentralized messaging, audio/video calls, and file sharing.
  • Jitsi: It is a free, open-source video conferencing solution for web and mobile, offering secure, flexible, and feature-rich communication capabilities.
  • Matrix: An open protocol for secure, decentralized communication, enabling real-time messaging, VoIP, and data transfer across platforms.
  • Mattermost: secure collaboration platform integrating people, processes, tools, and AI for mission-critical workflows with adaptable features.
  • MiroTalk: It offers free, secure, and fast browser-based video calls, chat, and screen sharing with no downloads or logins required.
  • Mumble: A free, open-source, low-latency, high-quality voice chat application primarily designed for gaming but also suitable for other uses.
  • Nextcloud Hub: A self-hosted, open-source platform for file sync, collaboration, communication, and productivity, ensuring data control.
  • OpenCloud: Secure file sharing and collaboration solution with flexible infrastructure, optimized for efficiency and digital sovereignty.
  • Pagecord: A free, open-source blogging platform that allows you to effortlessly publish your writing via email or a minimalist editor.
  • PeerTube: A free, open-source, decentralized video hosting platform, offering an alternative to mainstream video platforms.
  • Pensil: An all-in-one community engagement platform designed to improve retention, growth, and advocacy with white-label and developer-friendly tools.
  • Pixelfed: A free and open-source decentralized photo sharing social media platform, focusing on ethical and user-centric design.
  • Prose: It is a decentralized, open-source workplace communication platform powered by XMPP, offering secure and transparent team messaging.
  • Quiet: It is a peer-to-peer, serverless messaging application prioritizing privacy and security through Tor integration and end-to-end encryption.
  • Revolt: An open-source chat application focused on community building, customization, and user privacy, offering modern messaging features.
  • Rocket.Chat: Secure CommsOS™ centralizes messaging, voice, video, AI, and apps for unified communication among internal and external stakeholders.
  • Scoold: An open-source Q&A platform for knowledge sharing within teams and organizations, offering features like reputation, search, and API.
  • SpacebarChat: It is a free, open-source Discord reimplementation, offering self-hosted, secure communication similar to Slack and Rocket.chat.
  • Sylk Suite: Real-time communication apps using IETF SIP protocol and WebRTC, enabling rich multimedia applications for SIP, XMPP, and WebRTC clients.
  • Tox: It is a free, open-source, and encrypted peer-to-peer instant messaging protocol, prioritizing user privacy and security.
  • UnInbox: A collaborative email platform with shared inboxes, infinite addresses, and per-email workflows designed to enhance team productivity.
  • Valour: It is an open-source, community-driven platform offering flexible chat, economy, and item systems built on Blazor & WebAssembly.
  • Wire: A secure collaboration platform offering encrypted messaging, voice, video, and file sharing for privacy-conscious teams and enterprises.
  • WorkAdventure: A virtual office and event platform boosting remote team engagement with immersive, customizable virtual spaces.
  • Zulip: An organized team chat app designed for distributed teams, offering features like threaded conversations and powerful search.

Data & Analytics

  • Apache AsterixDB: A scalable, open-source Big Data Management System (BDMS) designed for managing large volumes of semi-structured data with high-performance analytics.
  • Apache CouchDB: A NoSQL database featuring seamless multi-primary sync, scaling from Big Data to Mobile with an HTTP/JSON API.
  • ArangoDB: An open-source, distributed multi-model database combining document, graph, key-value, and search capabilities with a unified query language (AQL).
  • Azimutt: Design, explore, document, and analyze your database schema with an intuitive ERD tool.
  • BigchainDB: A blockchain database offering high throughput, low latency, and powerful query functionality for decentralized applications.
  • DuckDB: A fast, in-process SQL OLAP database management system designed for analytical queries and seamless integration with major languages.
  • ElasticSearch: A distributed, RESTful search and analytics engine for various data types, offering speed, scale, and AI capabilities.
  • FerretDB: An open-source MongoDB alternative built on PostgreSQL, enabling seamless use of MongoDB drivers with a PostgreSQL backend.
  • InfluxDB: A time series data platform optimized for speed and scalability in any environment, used by millions of developers.
  • JanusGraph: It is a distributed, open-source graph database designed for scalability and handling large graphs across multi-machine clusters.
  • LOGLIB: A privacy-first, open-source web analytics platform providing valuable insights without compromising user privacy.
  • MariaDB Server: An open-source relational database known for performance, stability, and open collaboration, supported by the MariaDB Foundation.
  • Matomo: A privacy-first, open-source analytics platform offering accurate, customizable web and app analytics with 100% data ownership.
  • Metabase: Metabase is an open-source business intelligence tool that lets anyone in your company ask questions and learn from data, no SQL required.
  • MongoDB: A popular, open-source NoSQL document database designed for high scalability, flexibility, and developer productivity.
  • OrientDB: It is a multimodel NoSQL database combining graph and document database capabilities for scalable, high-performance applications.
  • PostgreSQL: The world's most advanced open source relational database, known for its reliability, feature robustness, and performance.
  • Prisme Analytics: It is a privacy-friendly, open-source web analytics platform offering customizable dashboards and GDPR compliance.
  • Redis: A free and open-source, high-performance in-memory data structure store used as a NoSQL key-value database, cache, and message broker.
  • RethinkDB: A free and open-source, distributed document database engineered for real-time applications with live push capabilities.
  • Swetrix: A cookieless, privacy-first and GDPR-compliant Google Analytics alternative, offering website analytics with user privacy in mind.
  • TiKV: It is a highly scalable, low-latency, distributed key-value database designed for building robust data storage solutions.
  • Trino: A high-performance, distributed SQL query engine for big data analytics, enabling fast exploration of data universes.

Design & Creative

  • Blender: A free and open-source 3D creation suite supporting modeling, animation, rendering, and interactive 3D applications.
  • Cinelerra GG Infinity: A free, open-source video editing software for Linux, offering professional-grade features for video post-production.
  • FFmpeg: It is a complete, cross-platform solution to record, convert and stream audio and video, offering a wide array of tools and libraries.
  • Flowblade: A free and open-source multitrack non-linear video editor for Linux, offering a range of tools for video editing and compositing.
  • GIMP: A free and open-source image editor for GNU/Linux, macOS, Windows, offering sophisticated tools for graphic designers, photographers, and more.
  • Inkscape: A professional vector graphics editor for Linux, macOS and Windows. It's free and open source, ideal for illustrators and designers.
  • Kdenlive: A free and open-source non-linear video editor available on Linux, Windows, macOS, and BSD, offering a versatile editing platform.
  • Krita: A free and open-source digital painting and illustration software, built for professional artists and creative individuals.
  • LiVES: A free, open-source, cross-platform video editing and VJ tool for Linux and UNIX-like systems, offering real-time manipulation and non-linear editing features.
  • MyPaint: A free and open-source raster graphics editor designed for digital painting, with a focus on a natural media painting experience.
  • Natron: A free, open-source node-based compositing software for visual effects and motion graphics.
  • OBS Studio: OBS Studio: Free, open-source software for video recording and live streaming to platforms like Twitch and YouTube, with high-quality encoding.
  • OpenShot: A free, open-source, cross-platform video editor offering powerful yet user-friendly editing tools for Linux, macOS, and Windows.
  • Pencil2D Animation: An open-source, cross-platform 2D animation software for creating hand-drawn animations with raster and vector workflows.
  • Photoflare: A cross-platform, open-source image editor inspired by PhotoFiltre, offering powerful features and superb performance for Linux, Windows, and Mac.
  • Pinta: A free, open-source painting and image editing program designed for simplicity and power across Linux, Mac, Windows, and *BSD.
  • Pitivi: A free, open-source non-linear video editor for Linux, offering an intuitive interface and powerful editing tools built on the GStreamer multimedia framework.
  • Piwigo: An open-source photo management software to organize and share photos on the web, designed for organizations, teams, and individuals.
  • RawTherapee: A cross-platform, open-source raw photo processing system for enthusiast newcomers to professional photographers.
  • VirtualDub: A free and open-source video capture and processing tool for Windows, known for its speed, batch processing, and real-time compression capabilities.
  • darktable: An open-source photography workflow application and raw developer, offering non-destructive editing and professional color management.
  • sK1 Project: It offers open-source vector graphics tools: sK1 2.0, UniConvertor, and Color Picker, catering to designers and developers.

Management

  • AFFiNE: An open-source, local-first knowledge base that merges docs, whiteboards, and databases with AI, enabling versatile content creation.
  • Eververse: An open-source product management platform with AI, enabling teams to explore problems, ideate, prioritize, and plan roadmaps.
  • Flipt: An open-source feature management platform built for developers, offering Git integration and scalability for enterprises.
  • Focalboard: An open-source project management tool, offering a Trello, Asana, and Notion alternative for technical teams to stay aligned.
  • Huly: An open-source platform that replaces Linear, Jira, Slack, and Notion, offering team planning, project management, and virtual office features.
  • Kanri: A free, open-source, offline Kanban board application for Windows, Mac, and Linux, focusing on simplicity and privacy.
  • Kap: An open-source screen recorder built with web technology, offering high-quality recordings and flexible export options.
  • Karakeep: A bookmarking app that uses AI to automatically tag links, notes, and images, helping users organize and retrieve information efficiently.
  • Leantime: A free, open-source project management software designed for neurodivergent teams, emphasizing streamlined tasks and AI.
  • OpenProject: Open source project management software for classic, agile, or hybrid approaches, offering task management, Gantt charts, and team collaboration.
  • Orgnise: An all-in-one platform for knowledge management, documentation, and project collaboration, designed to streamline team workflows.
  • PostHog: PostHog is an all-in-one platform for product analytics, feature flags, session replays, experiments, and surveys built for developers.
  • Taiga: A free, open-source project management platform for agile teams, supporting both Scrum and Kanban workflows, ideal for startups, developers, and designers seeking a clean and powerful PM tool.

Marketing

  • Mautic: An open-source marketing automation platform offering campaign building, email marketing, lead nurturing, and data sovereignty.
  • Postiz: Postiz is an all-in-one social media management tool with scheduling, analytics, AI content creation, and team collaboration features.

Monitoring

  • Gatus: An advanced automated status page that monitors applications and sends alerts when issues arise, providing real-time visibility into system health.
  • VictoriaMetrics: A cost-efficient, open-source time series database and monitoring solution designed for scalability and reliability.
  • Cachet: An open-source status page system that enhances transparency in downtime communication for startups to Fortune 500 companies.

Productivity

  • Anytype: Anytype is a local-first, peer-to-peer, open-source ""everything app"" emphasizing trust, autonomy, and powerful no-code creation.
  • AppFlowy: AI collaborative workspace that helps teams manage projects, wikis, and tasks while maintaining control over their data.
  • Bookshelf: A self-hosted, open-source application for tracking and managing your personal library, reading habits, and book notes.
  • Brave: A fast, private, and secure web browser with built-in ad blocker, VPN, and AI assistant, prioritizing user privacy and performance.
  • Docmost: It helps you collect, organize, and share documents in one simple place.
  • Joplin: An open-source note-taking application that allows you to capture your thoughts and securely access them from any device.
  • Ladybird: An independent, open-source browser built from scratch with a focus on privacy, performance, and user control.
  • LibreOffice: A free and open-source office suite compatible with Microsoft Office formats, offering a range of applications for various productivity tasks.
  • LibreWolf: A privacy-focused web browser, a custom version of Firefox designed to enhance security and user freedom.
  • Logseq: A privacy-first, open-source knowledge base platform for knowledge management and collaboration, focusing on outlining and linking.
  • Notable: A markdown-based, open-source note-taking app built for developers and technical professionals who value speed, simplicity, and data ownership.
  • Notesnook: An open-source, end-to-end encrypted note-taking app focused on privacy and security for individuals and teams.
  • Okular: A versatile, multi-platform document viewer supporting PDF, EPub, comics, images, and Markdown, with annotation and signature features.
  • PDFsam Basic: A free and open-source application for splitting, merging, rotating, and extracting pages from PDF files, ensuring data privacy.
  • ShareX: A free and open-source screenshot, file sharing, and productivity tool for Windows, designed for capturing, editing, and sharing screen captures.
  • SiYuan: A privacy-first personal knowledge management system with Markdown support, block-level referencing, and bidirectional links.
  • Standard Notes: A free, open-source, end-to-end encrypted note-taking app for secure and private digital life management.
  • Stirling PDF: A self-hosted, open-source PDF editor offering over 50 tools for secure, local PDF manipulation and automation.
  • Tor Browser: Built on Firefox, Tor Browser provides the highest level of anonymity and privacy protection available to consumers.
  • Zen Browser: A privacy-focused browser with workspaces, compact mode, glance, and split view for enhanced productivity and a calmer internet experience.
  • Zettlr: A free, open-source Markdown editor designed for researchers and writers, supporting the entire writing process from notes to publication.

Security

  • Basilisk: A free, open-source, XUL-based web browser built on the Goanna engine, offering a classic Firefox-like interface and support for legacy extensions and NPAPI plugins.
  • Better Auth: A comprehensive authentication library for TypeScript, offering features like multi-factor auth, social sign-on, and multi-tenant support.
  • Cerbos: It provides scalable, policy-based authorization, simplifying access control implementation for applications and microservices.
  • CloudQuery: A cloud governance solution providing cloud asset inventory, security & compliance, and cost visibility through a queryable platform.
  • Falkon: An open-source, lightweight web browser built on QtWebEngine, offering speed, built‑in ad‑blocking, and deep integration with KDE Plasma for users seeking a fast, configurable browsing experience.
  • Floorp: A free and open-source web browser based on Firefox ESR, focused on advanced privacy options, extensive UI customization, and modern browsing tools.
  • Iridium Browser: A Chromium-based browser focused on privacy and security, offering enhanced protection without compromising compatibility.
  • KWalletManager: It securely stores and manages passwords, allowing access and management for applications integrating with the wallet subsystem.
  • KeePass: A free, open-source password manager that helps you manage your passwords securely in an encrypted database.
  • KeePassX: A free, open-source password manager that helps users securely store and manage their passwords and sensitive data.
  • KeePassXC: A free, open-source password manager that securely stores and manages your sensitive information across multiple platforms.
  • Keestash: An open-source password manager offering secure password storage, sharing, and team management in the cloud.
  • Logto: An open-source auth infrastructure designed for developers, offering features like multi-tenancy, enterprise SSO, and RBAC for SaaS and AI apps.
  • Midori Browser: A lightweight, fast, secure, and privacy-focused web browser available for Windows, Linux, and Android.
  • Mullvad Browser: It is developed with the Tor Project, minimizes tracking and fingerprinting, offering enhanced privacy when used with a VPN.
  • Neosync: An open-source data anonymization and synthetic data generation platform for developers, enhancing data security and development speed.
  • Passbolt: An open-source password manager for teams, offering secure password sharing, storage, and collaboration with end-to-end encryption.
  • Passky: An open-source password manager that prioritizes simplicity, security, and ease of use with features like 2FA and import/export.
  • Password Safe: An open-source password manager that securely stores and encrypts usernames and passwords behind a single master password.
  • Passwordcockpit: A self-hosted, open-source password manager for teams, offering secure storage, sharing, and retrieval of credentials.
  • Psono: A self-hosted, open-source password manager for businesses, offering secure credential storage, sharing, and access control features.
  • ZITADEL: It simplifies identity infrastructure for developers, offering secure authentication, authorization, and extensibility for modern applications.

System & IT

  • 1Panel: A web-based Linux server management tool with an intuitive interface for managing websites, containers, databases, and more.
  • Digger: An open-source CI/CD orchestrator for Terraform and OpenTofu, enabling Infrastructure as Code management within your CI/CD system.
  • Ghostscript: A powerful PDL interpreter and conversion tool for PDF, PostScript, PCL, and XPS, enabling flexible document processing and printing.
  • Immich: A self-hosted photo and video management solution that allows you to back up, organize, and manage your media on your own server.
  • Jellyfin: A free software media system that lets you control and stream your media from your own server to any device.
  • KeyDB: It is a fully open-source, multithreaded database offering a faster, drop-in alternative to Redis, backed by Snap for high-performance workloads.
  • Konqueror: A versatile KDE file manager and web browser with file management, web browsing, and file previewing capabilities.
  • OpenPDF: A free, open-source Java library and online toolkit for creating, editing, and processing PDF documents.
  • PDF4QT: An open-source PDF editor for Windows/Linux, offering a C++ library, command-line tool, and applications for viewing/editing PDFs.
  • Soketi: A simple, fast, and resilient open-source WebSockets server for real-time communication.
  • Storj: It offers disruptively fast, globally secure, and S3-compatible distributed cloud services for demanding workflows at an affordable cost.
  • Typemill: An open-source, flat-file CMS designed for creating documentation, user manuals, and knowledge bases with Markdown.
  • n8n: n8n is a workflow automation platform combining AI with business process automation, offering code flexibility and no-code speed.

Web & App Development

  • Apache PDFBox: An open-source Java library for working with PDF documents, enabling creation, manipulation, and content extraction.
  • Appwrite: An open-source platform providing authentication, database, storage, functions, messaging, and realtime capabilities for developers.
  • Bolt.new: Prompt, run, edit & deploy full-stack web and mobile apps. A platform for rapid application development and deployment.
  • Capgo: It provides instant live updates for Capacitor apps, offering end-to-end encryption, analytics, and rollback capabilities for efficient app management.
  • Centrifugo: A scalable real-time messaging server that provides various real-time transports and integrates with any application.
  • CodeEdit: A lightweight, natively-built, open-source code editor for macOS, designed for speed, efficiency, and macOS integration.
  • Codegen: AI developer teammate that helps you build software faster with code reviews, bug fixes, and feature implementations through natural language.
  • Convex: An open-source reactive database designed for app developers, providing a full-stack solution with real-time data synchronization and AI coding.
  • Craft CMS: It is a flexible, user-friendly content management system for creating custom digital experiences on the web and beyond.
  • Drupal: An open-source CMS platform for building digital experiences, offering flexibility, scalability, and a large community.
  • Firefox: A free, open-source web browser focused on privacy, performance, and customization, backed by Mozilla's non-profit mission.
  • Flotilla Social: A customizable, decentralized social media platform with user-owned data and community-centric features.
  • Hoppscotch: Hoppscotch is an open-source API development ecosystem for creating and testing API requests, saving development time.
  • K-Meleon: A fast, customizable, lightweight web browser for Windows based on Mozilla's Gecko engine, offering privacy and macro customization.
  • Kutt: It is a free and open-source URL shortener that allows custom domains and provides detailed statistics for link management.
  • Languine: It automates localization within developer workflows, ensuring translations never hold you up, with CLI, CI/CD, and GitHub Actions.
  • MuPDF: A fast and powerful library for managing PDF and other document formats, offering tools to extract, convert, render, and edit documents.
  • PouchDB: An open-source JavaScript database inspired by Apache CouchDB, designed to run well in the browser and enable offline-first applications.
  • Supabase: Supabase is an open-source Firebase alternative with a Postgres database, authentication, APIs, real-time subscriptions, and storage.
  • Turso: It is a cloud platform providing SQLite databases designed for serverless and edge applications, offering scalability and a simple developer experience.
  • VoceChat: It is a lightweight, self-hostable chat application and framework built with Rust, offering private in-app messaging and AI bot integration.
  • Void: An open-source AI code editor that offers full privacy, supports various LLMs, and is based on VS Code for easy customization.
  • Webstudio: An open-source website builder offering custom frontend design without code, integrations, dynamic content, and cloud hosting.
  • Yaak: A fast, offline, and Git-friendly API client for modern developers, supporting HTTP, GraphQL, WebSockets, SSE, and gRPC.
  • Zed: Zed is a high-performance, multiplayer code editor with AI integration, designed for collaboration and coding at the speed of thought.
  • pdftk-java: A Java port of PDFtk, a tool for manipulating PDF documents, offering functionalities like merging, splitting, and filling PDF forms.

Contributing

Contributions are welcome! If you would like to add a tool or suggest a change, please follow these steps:

  1. Fork this repository.
  2. Add or edit the tool in the most relevant category. Please keep the lists in alphabetical order.
  3. Use the following format: * [Product Name](Link): Short description.
  4. Create a Pull Request with a clear description of your changes.

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A curated list of open-source alternatives to popular software and services. Each tool is listed in its single most relevant category.

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