Open Source
The best 50 Open Source AI tools - Free & Paid
Explore 50 AI for Open Source
OpenCode.ai is an open-source AI coding agent that runs directly in your terminal, IDE, or desktop. It connects to 75+ LLM providers, supports offline use, and enables multi-session collaboration for code review and debugging.
Free
Open Apps is an open-source app directory that offers a curated selection of free alternatives to popular software tools, enabling users to find quality open-source solutions across various categories for development and productivity needs.
Free
Open Knowledge Maps is an AI search engine that visualizes scientific literature across disciplines, clustering related papers to reveal topic connections and trends. It supports varied document types, offers high‑quality metadata, multilingual browsing, and open‑source integration.
Freemium
Openkoda is an open‑source insurtech platform providing modular templates for claims, policy, and embedded insurance. It offers AI analytics, automated documents, role‑based access, multi‑tenant clustering, and API hooks for rapid, scalable development without vendor lock‑in.
Freemium
OpenArt is an AI art generator that provides powerful tools for you to generate and edit images, especially artist assets, that you can directly use and edit to improve.
Freemium
Open SaaS is an open-source framework for building scalable applications with React and Node.js, offering features like pre-configured authentication, payment integrations, TypeScript support, an admin dashboard, and easy deployment without vendor lock-in.
Free
Open Lovable is an open-source AI website builder that transforms existing websites into React/Next.js applications. It utilizes web scraping and AI models for analysis, enabling quick cloning and customization of production-ready components.
Freemium
FreedomGPT unifies access to 400+ AI models, showing side‑by‑side answers for voting and auto‑selection via leaderboard. It keeps privacy safe, runs on Windows/macOS, and is open‑source for community contribution and collaboration.
Free
A free, user-friendly, multilingual, and open-source AI image generator that utilizes Stable Diffusion.
Free
OpenL Translate converts text, PDFs, images, and audio into 100+ languages, supporting dialects and emojis. Fast mode delivers short translations; Advanced mode offers precision for legal documents. It handles 150k characters and 40 scanned PDFs daily, processing locally for privacy.
Subscription
OpenDream is a web‑based AI art generator that turns text prompts into images using models such as Dreamlike, Stable Diffusion, and Deliberate. It offers templates for logos, anime characters, and 3D objects, enabling rapid high‑resolution creations for commercial use.
Freemium
OpenCreator is a generative AI workstation that integrates over 20 AI models for efficient content creation. With an intuitive interface, it enables quick visual production for various applications, including marketing and education, while simplifying the creative process.
Free trial
- $19/mo
Uncensored AI delivers a chat platform featuring Claude Opus, Gemini, Grok, and MiniMax M2‑Her. It supports text, audio, image, and code interactions, including image‑to‑video via Image Studio. API beta and usage stats benefit developers, writers, educators, and researchers.
Freemium
OpenAgents is an open-source framework for building and operating scalable, interoperable AI agent networks. It provides tools to launch, connect, and orchestrate agents with live monitoring, enabling collaborative applications and workflows.
Freemium
OpenRouter gives one API key to access 300+ models from 60+ providers, SDK‑compatible, with visual routing, automated fall‑back, edge hosting, data‑policy controls, and agentic tools for building efficient autonomous workflows.
Freemium
n8n is an open‑source workflow automation platform with a visual canvas and custom JavaScript/Python support. It connects to 500+ integrations, enables AI agents and RAG, offers audit logs, real‑time alerts, and can be self‑hosted on Docker or Kubernetes.
Free
Open‑source AI code‑review platform that plugs into GitHub, GitLab, Bitbucket, and Azure DevOps at the pull‑request level. Model‑agnostic, it runs custom rule sets, tracks technical debt, and delivers real‑time metrics without storing source code.
Freemium
OpenAssistantGPT is an open‑source SaaS that lets you build no‑code AI chatbots for websites. It auto‑crawls a URL, supports GPT‑4/3.5, handles file attachments, SAML/SSO, API calls, and web search, with GitHub source and Vercel SDK.
Freemium
- $18/mo
Mistral AI offers developers a platform for building cutting-edge generative AI models with a focus on performance and customization. Their models excel in reasoning tasks and benchmarks, providing flexible deployment options across infrastructures.
Freemium
OpenClaw is a personal AI assistant that automates email, calendar, task and chat workflows—clearing inboxes, composing and sending messages, scheduling events, checking reservations, integrating chats and cloud services, with persistent memory, background jobs and developer-friendly self-hosting an
Free
Sourcely is an AI academic search assistant that lets users paste text to retrieve relevant sources from a 200‑million‑paper database. It highlights citation sections, summarizes findings, offers free PDFs, supports multiple citation styles, and provides filtering and conversational clarification to
Subscription
- $19/mo
The AI Workspace is a tool that generates imaginary images using AI. It allows users to train models using photos and supports custom identifiers and prompts.
Open Notebook is a self-hosted, open-source notebook for private LLM workflows, supporting over 16 AI providers. It enables multi-modal content management, vector search, and contextual chat with full data sovereignty for research and development teams.
Freemium
Airbyte is an open-source data integration platform for building ELT/ETL pipelines with 600+ connectors, real-time replication and reverse ETL, low-code/custom connector development, and deployment options for cloud, private, and enterprise compliance controls.
Free trial
- $10/mo
GitHub Copilot is an AI pair programmer that uses the OpenAI Codex to suggest code and entire functions in real-time.
Free trial
Shared Recruiting Co. is an open‑source platform that streamlines candidate‑company communication, offering opt‑in messaging, inbox control, targeted outreach, engagement tracking, and ATS integration for customizable recruitment workflows.
Free
Copyleaks delivers AI text and image detection, plagiarism checking, grammar correction, and text moderation in 30+ languages. It integrates via API, LMS, browser extensions, and Google Docs, supports major LLMs, and ensures secure, compliant workflows for education and enterprise.
Free
- $13.99/mo
enqai" is a decentralized AI tool that prioritizes autonomy and security by offering uncensorable solutions. Users can access various AI capabilities independently of centralized control, ensuring reliable performance for a range of applications.
Freemium
gpt-oss playground provides open-weight demos of gpt-oss-120b and 20b for infrastructure testing, distributed and on-device inference, benchmarking, API integration, and reproducible research, with adjustable reasoning levels and visible-reasoning for diagnostics. Demo-only; validate outputs.
Freemium
Open Voice OS is an open-source, community-driven voice AI platform for building customizable assistants across Raspberry Pi, embedded devices, Linux desktops, and Docker. It provides plugin-based STT/TTS, configurable wake words, extensible skills, and privacy-focused self-hosting.
Free
Sourcetable is an AI‑powered spreadsheet platform that lets users query data in plain English, auto‑generate charts, Python/SQL code, and clean data. Built‑in connectors link to databases and apps, while templates enable quick reporting.
Freemium
- $20/mo
OpenManus is an open-source framework for building AI agents, offering flexibility and ease of use. It supports RL-based tuning methods like GRPO, allows LLM API configuration, and enables customizable AI-driven workflows with minimal setup, fostering community contributions.
Free
OpenHouse.ai consolidates sales, marketing, and operations data into a real‑time analytics engine that detects shifts in traffic, buyer behavior, pricing pressure, and sales velocity at the community level, diagnosing drivers and prescribing targeted pricing, incentive, and operational actions.
Subscription
OpenCraft AI is a secure, multi‑model copilot that unifies GPT‑4, Claude, and Gemini. It preserves context across model switches, keeps uploaded files accessible, auto‑formats chats into reports or decks, and generates images with consistent voice tone for streamlined workflows.
Paid
Lens by GitBook is an AI-enhanced internal knowledge base that facilitates Git-like collaboration, deep integrations, and content audits. It promotes effortless contribution, organized management, and real-time teamwork for current documentation.
Freemium
Mevo is an open‑source platform that lets developers and data scientists host and customize their own instances on any OS or cloud. With GitHub‑hosted code, full documentation, and modular architecture, it supports integrations and ensures data privacy and compliance.
Free
Browser extension that analyzes news, tweets, and posts for bias, tone, and framing. Provides concise summaries, a trust score, political leanings, rhetoric breakdowns, and links to reputable references in real time.
Freemium
- $7.99/mo
Jam is an AI-powered debugging assistant that streamlines the debugging process through automated source code analysis and code fix suggestions while ensuring privacy and security. It integrates with a Chrome extension for bug reporting workflow.
Free
Prechance uncensored Image generator, free that requires no sign-up and is unlimited. Generate Images from text prompts without censors.
Free
Upscayl is an open‑source AI upscaler that boosts images up to 16× with minimal detail loss. It supports batch processing, multiple model styles, local cross‑platform execution, and cloud sync for convenient, private, high‑quality image enhancement.
Freemium
- $24.99
OpenLIT is an open‑source observability platform for large‑language‑model applications, offering distributed tracing, real‑time monitoring, model evaluation, prompt versioning, fleet telemetry, and a zero‑code Kubernetes operator to integrate with major LLM providers and vector databases.
Subscription
- $10/mo
Answer Overflow is an open-source AI search engine for Discord, simplifying content discovery across various servers. Easily find valuable information in different communities to enhance your Discord experience efficiently.
Freemium
OpenAI Codex CLI is a terminal-based, open-source coding agent that uses natural language to automate development tasks like code generation, testing, refactoring, and codebase understanding, with secure sandboxed execution and Git integration.
Free
OpenSilver is an open-source UI framework for modern .NET applications, allowing seamless migration of Silverlight and WPF apps. It features AI-enhanced design tools, MAUI hybrid integration, and enables code reusability to streamline the transition process.
Freemium