97 open-source tools indexed

Find the best open-source alternatives to proprietary software.

Curated, community-driven alternatives with active development, transparent source code, and modern developer experience.

3.7M total GitHub stars
21categories
100%open source

Showing 20 of 97 results

n8n

n8n

Fair-code workflow automation — 400+ integrations with AI agents.

Sustainable Use License alternative to Zapier. Visual builder, code nodes, native AI capabilities, and self-hosting. TypeScript/Vue stack.

automationworkflowno-code
190.7K58.2KSustainable Use License / fair-code
vs Zapier
OpenCode

OpenCode

Open-source, provider-agnostic AI coding agent for terminal, desktop, and IDE.

MIT-licensed alternative to Claude Code. Switch between 75+ LLM providers, run Build/Plan agents, and keep code local — terminal, desktop, or IDE extension.

aicoding-agentterminal
167.3K19.9KMIT
vs Claude Code
Langflow

Langflow

Visual builder for AI agents and RAG pipelines — LangChain-powered.

MIT-licensed alternative to Flowise with Python code nodes, multi-agent orchestration, and vector store integration. pip install or Docker.

aiagentsrag
149.1K9.2KMIT
vs Flowise
Dify

Dify

Open-source LLM app platform — visual workflow, RAG, agents, 100+ models.

Apache-2.0 platform with Prompt IDE, RAG pipelines, agent framework, and model management. Self-host with Docker or use cloud.dify.ai.

aiagentsrag
143.5K22.6KApache-2.0
vs OpenAI
Open WebUI

Open WebUI

Self-hosted AI interface — Ollama, OpenAI-compatible, RAG built-in.

BSD-3-Clause alternative to ChatGPT with multi-model support, code execution, file upload, and RBAC. Single Docker command to deploy.

aichatui
139.6K20KBSD-3-Clause
vs ChatGPT
Excalidraw

Excalidraw

Virtual whiteboard — hand-drawn diagrams, real-time collaboration.

MIT-licensed alternative to Miro with E2EE collaboration, component library, and export to PNG/SVG/JSON. React npm package for embedding.

whiteboardcollaborationdesign
124.5K13.9KMIT
vs Miro
Supabase

Supabase

Open-source Firebase alternative — Postgres, auth, storage, real-time.

Apache-2.0 platform with Postgres database, GoTrue auth, Edge Functions, Realtime subscriptions, and Storage. Self-host or cloud.

backenddatabasepostgres
103.3K12.6KApache-2.0
vs Firebase
Immich

Immich

Self-hosted photo and video backup — face recognition, AI search.

AGPL-3.0 alternative to Google Photos. Automatic mobile upload, face clustering, object detection, shared albums, and map view. Docker Compose deployment.

photosbackupself-hosted
102.5K5.8KAGPL-3.0
vs Google Photos
Browser Use

Browser Use

Let AI agents control any browser — at scale, with structured data.

MIT-licensed Python library for AI browser automation. Playwright-based with multi-tab support, session persistence, and natural language task descriptions.

aibrowserautomation
96.6K10.8KMIT
vs Playwright
Zed

Zed

High-performance multiplayer code editor in Rust — GPU-accelerated, AI-native, built for speed.

Open-source alternative to VS Code from the Atom and Tree-sitter team. Real-time collaboration, native AI agents, built-in Git, and parallel agentic editing — macOS, Linux, and Windows.

code-editoriderust
84.1K8.8KGPL-3.0
vs VS Code
Hoppscotch

Hoppscotch

Sleek, intuitive API development and testing platform

Sleek, intuitive API development and testing platform

apitestingdevelopment
79.4K5.9KMIT
vs Postman
LobeChat

LobeChat

Open-source AI chat — plugin ecosystem, multi-model, voice chat.

Apache-2.0 alternative to ChatGPT with GPT-4, Claude, Gemini, and Ollama support. Material Design UI, DALL-E/Flux image generation, and TTS/STT.

aichatagents
78.1K15.4KApache-2.0
vs ChatGPT
Grafana

Grafana

Open observability — dashboards for metrics, logs, and traces.

AGPL-3.0 platform with 100+ data source integrations, multi-condition alerting, plugin marketplace, and Dashboard as Code. Self-host or Grafana Cloud.

monitoringanalyticsdashboards
74.1K14KAGPL-3.0
vs Datadog
Daytona

Daytona

AI code execution infrastructure — 90ms boot sandboxes with full isolation for agents and automation, 72k+ GitHub stars

Lightning-fast AI code execution in secure sandboxes

aisandboxdevops
72.5K5.6KAGPL-3.0
vs GitHub Codespaces
Strapi

Strapi

Leading open-source headless CMS — content APIs with admin panel.

MIT-licensed alternative to Contentful and Directus. Custom content types, REST/GraphQL APIs, role-based access, and plugin ecosystem.

cmsheadlessapi
72.3K9.7KMIT
vs Contentful
AppFlowy

AppFlowy

Local-first AI workspace for docs, databases, and tasks — open-source Notion alternative.

AGPL-3.0 alternative to Notion with offline desktop apps, self-hosted sync, and AI model choice. Documents, kanban, calendars, and databases under your control.

notesproject managementworkspace
71.4K5.3KAGPL-3.0
vs Notion
OpenBB

OpenBB

AI-powered investment research — Bloomberg Terminal alternative.

AGPL-3.0 platform with 50+ data providers, AI copilot, portfolio analytics, and technical analysis. Python SDK or full platform with Docker.

financeanalyticsinvestment
68.4K6.9KAGPL-3.0
vs Bloomberg
NocoDB

NocoDB

Open-source Airtable alternative — any database becomes a spreadsheet.

AGPL-3.0 platform with Grid, Kanban, Gallery, Form, and Calendar views. Connects to MySQL, Postgres, SQLite with auto-generated REST/GraphQL APIs.

databaseno-codespreadsheet
63.2K4.8KAGPL-3.0
vs Airtable
AnythingLLM

AnythingLLM

All-in-one AI app — chat with documents using any LLM, fully private.

MIT-licensed platform for multi-LLM document chat, AI agents, and multi-user workspaces. Desktop apps for Mac, Windows, Linux with LanceDB, Chroma, or Qdrant backends.

airagchat
60.9K6.6KMIT
vs ChatGPT
Mem0

Mem0

Universal memory layer for AI agents — multi-signal retrieval, temporal reasoning, 57k+ GitHub stars

Give your AI apps persistent memory and intelligence

aimemoryllm
57.3K6.5KApache-2.0
vs Pinecone