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BetterOpenSource
77+ open-source tools, hand-reviewed

Discover the best open-source alternatives

Replace pricey, proprietary software with self-hostable open-source tools. Compare features, licenses, and GitHub activity — and cut your recurring costs.

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Curated tools
77+
GitHub stars
2.9M+
Categories
16
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What the community loves

The open-source tools developers are starring and switching to right now.

Ollama logo

Ollama

Alternative to ChatGPT, Claude

Run open LLMs locally with a single command.

Open SourceMIT175K
Open WebUI logo

Open WebUI

Alternative to ChatGPT, Claude

A polished, self-hosted chat UI for any LLM.

Open SourceMIT98K
n8n logo

n8n

Alternative to Zapier, IFTTT

Workflow automation for technical teams.

Open SourceSource Available95K
Dify logo

Dify

Alternative to OpenAI Assistants

An LLMOps platform for building AI products.

Open SourceSource Available92K
Excalidraw logo

Excalidraw

Alternative to Miro, Figma

Virtual whiteboard with a hand-drawn feel.

Open SourceMIT92K
OP

OpenHands

Alternative to Devin, Claude Code

Autonomous AI agents that build software.

Open SourceMIT77K
Supabase logo

Supabase

Alternative to Firebase, Auth0

The open-source Firebase alternative.

Open SourceApache 2.075K
Hoppscotch logo

Hoppscotch

Alternative to Postman

A fast, lightweight API development client.

Open SourceMIT70K
Browse by category

Find tools for every job

From design to deployment, explore open-source software organized the way you work.

AI Chat Interfaces

Self-hosted chat front-ends for large language models — bring your own keys or run local models with full data control.

3 tools

AI Assistants

Personal AI copilots that search your knowledge, automate tasks, and run offline-first on your own hardware.

4 tools

AI Agent Platforms

Visual builders for LLM apps, RAG pipelines, and autonomous agents — the open-source backbone for AI products.

3 tools

AI Coding Assistants

Open-source coding agents, AI editors, and autocomplete tools — self-hostable alternatives to Claude Code, Copilot, and Cursor.

13 tools

Design & Prototyping

Collaborative design, whiteboarding, and prototyping tools that keep your files open and exportable.

3 tools

Notes & Knowledge

Local-first note apps, wikis, and knowledge bases with linking, databases, and end-to-end encryption.

6 tools

Productivity & Scheduling

Scheduling, calendaring, file sync, and task tools that replace subscription productivity suites.

3 tools

Project Management

Issue trackers, kanban boards, and agile suites for teams that want to own their roadmap data.

2 tools

Communication

Team chat, video conferencing, and community platforms you can self-host for privacy and control.

6 tools

No-Code & Databases

Airtable-style databases and internal tool builders that turn data into apps without a backend team.

4 tools

Workflow Automation

Node-based automation and integration platforms — connect apps and run workflows on your own terms.

3 tools

Web Analytics

Privacy-friendly, cookie-free analytics and product insight tools that keep visitor data yours.

4 tools

Developer Tools

API clients, search engines, observability, and monitoring stacks built for developers, by developers.

11 tools

Hosting & Deployment

Self-hosted PaaS and deployment platforms — a Heroku-like experience on infrastructure you control.

3 tools

CMS & E-commerce

Headless CMS, publishing, and commerce platforms that decouple content from presentation.

5 tools

Backend & BaaS

Open-source Firebase alternatives — auth, databases, storage, and APIs in a single self-hostable stack.

4 tools

Editor's picks

Featured open-source tools

Standout projects we think are worth your attention — mature, well-maintained, and genuinely great.

Open WebUI logo

Open WebUI

Alternative to ChatGPT, Claude

A polished, self-hosted chat UI for any LLM.

Open SourceMIT98K
Ollama logo

Ollama

Alternative to ChatGPT, Claude

Run open LLMs locally with a single command.

Open SourceMIT175K
Dify logo

Dify

Alternative to OpenAI Assistants

An LLMOps platform for building AI products.

Open SourceSource Available92K
Penpot logo

Penpot

Alternative to Figma, Sketch

The open-source design tool for design & code.

Open SourceMPL 2.038K
Excalidraw logo

Excalidraw

Alternative to Miro, Figma

Virtual whiteboard with a hand-drawn feel.

Open SourceMIT92K
AppFlowy logo

AppFlowy

Alternative to Notion, Confluence

The open-source Notion alternative, built in Rust.

Open SourceAGPL 3.064K

Ready to ditch the subscriptions?

Browse self-hostable open-source alternatives, compare them side by side, and take back control of your stack — and your budget.

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