10 Best BSD-3-Clause Licensed Open Source Software in 2026

Open WebUI

Extensible, self-hosted AI interface for your workflow

Stars
134,863
Forks
19,170
Last commit
6 days ago

A customizable interface for AI that works offline, supporting Ollama and OpenAI-compatible APIs while adapting to your specific workflow needs.

Open Source Alternative to:

Grok

Appwrite

Open-source backend platform for rapid app development

Stars
55,919
Forks
5,294
Last commit
9 hours ago

Open-source development platform with built-in backend infrastructure, web hosting, and security features. Scale applications using your preferred programming languages.

Open Source Alternative to:

Supabase

Tailscale

Zero-config VPN with WireGuard for secure networking

Stars
31,064
Forks
2,499
Last commit
12 hours ago

Deploy a modern WireGuard-based VPN with zero configuration. Connect devices securely across clouds, VPCs, and on-premises networks without firewall rules.

Open Source Alternative to:

Zerotier

Saleor

Flexible e-commerce platform for modern businesses

Stars
22,856
Forks
6,006
Last commit
1 day ago

Headless, API-first e-commerce solution with powerful features for customization, scalability, and seamless integration across channels.

Open Source Alternative to:

Shopify

Spree Commerce

Open source headless commerce with REST API, no platform fees, built for B2B and marketplaces

Stars
15,380
Forks
5,258
Last commit
10 hours ago

Headless eCommerce platform with REST API, TypeScript SDK, and Next.js storefront. Handle B2B, multi-vendor marketplaces, and cross-border commerce. Self-hosted, open source, zero fees.

Open Source Alternative to:

Shopify

Weaviate

AI-native vector database for intuitive applications

Stars
16,101
Forks
1,269
Last commit
10 hours ago

Open-source vector database designed for building powerful, production-ready AI applications with hybrid search capabilities and flexible deployment options.

Open Source Alternative to:

Supabase

Flagsmith

Feature flags and remote config for rapid deployment

Stars
6,329
Forks
512
Last commit
12 hours ago

Powerful feature management platform for seamless software releases, A/B testing, and personalized user experiences.

Open Source Alternative to:

LaunchDarkly

HTTPie

Modern command-line HTTP client for the API era

Stars
3,931
Forks
56
Last commit
1 year ago

Intuitive, user-friendly CLI tool for making HTTP requests, debugging APIs, and testing web services with ease and efficiency.

Open Source Alternative to:

Postman

Linguist

Privacy-focused translation with offline capabilities

Stars
975
Forks
44
Last commit
1 month ago

Full-featured browser extension for translating web pages, text, and subtitles with offline mode, personal dictionary, and custom translator support.

Open Source Alternative to:

Google Translate

Browser Operator

Open-source AI browser for intelligent web automation

Stars
476
Forks
76
Last commit
1 month ago

Privacy-focused AI browser with intelligent agents for research, analysis, and workflow automation. Features unified memory, compliance guardrails, and seamless integrations.

Open Source Alternative to:

Browserbase

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Open WebUI

Extensible, self-hosted AI interface for your workflow

Stars
134,863
Forks
19,170
Last commit
6 days ago

A customizable interface for AI that works offline, supporting Ollama and OpenAI-compatible APIs while adapting to your specific workflow needs.

Open Source Alternative to:

Grok

Appwrite

Open-source backend platform for rapid app development

Stars
55,919
Forks
5,294
Last commit
9 hours ago

Open-source development platform with built-in backend infrastructure, web hosting, and security features. Scale applications using your preferred programming languages.

Open Source Alternative to:

Supabase

Tailscale

Zero-config VPN with WireGuard for secure networking

Stars
31,064
Forks
2,499
Last commit
12 hours ago

Deploy a modern WireGuard-based VPN with zero configuration. Connect devices securely across clouds, VPCs, and on-premises networks without firewall rules.

Open Source Alternative to:

Zerotier

Saleor

Flexible e-commerce platform for modern businesses

Stars
22,856
Forks
6,006
Last commit
1 day ago

Headless, API-first e-commerce solution with powerful features for customization, scalability, and seamless integration across channels.

Open Source Alternative to:

Shopify

Spree Commerce

Open source headless commerce with REST API, no platform fees, built for B2B and marketplaces

Stars
15,380
Forks
5,258
Last commit
10 hours ago

Headless eCommerce platform with REST API, TypeScript SDK, and Next.js storefront. Handle B2B, multi-vendor marketplaces, and cross-border commerce. Self-hosted, open source, zero fees.

Open Source Alternative to:

Shopify

Weaviate

AI-native vector database for intuitive applications

Stars
16,101
Forks
1,269
Last commit
10 hours ago

Open-source vector database designed for building powerful, production-ready AI applications with hybrid search capabilities and flexible deployment options.

Open Source Alternative to:

Supabase

Flagsmith

Feature flags and remote config for rapid deployment

Stars
6,329
Forks
512
Last commit
12 hours ago

Powerful feature management platform for seamless software releases, A/B testing, and personalized user experiences.

Open Source Alternative to:

LaunchDarkly

HTTPie

Modern command-line HTTP client for the API era

Stars
3,931
Forks
56
Last commit
1 year ago

Intuitive, user-friendly CLI tool for making HTTP requests, debugging APIs, and testing web services with ease and efficiency.

Open Source Alternative to:

Postman

Linguist

Privacy-focused translation with offline capabilities

Stars
975
Forks
44
Last commit
1 month ago

Full-featured browser extension for translating web pages, text, and subtitles with offline mode, personal dictionary, and custom translator support.

Open Source Alternative to:

Google Translate

Browser Operator

Open-source AI browser for intelligent web automation

Stars
476
Forks
76
Last commit
1 month ago

Privacy-focused AI browser with intelligent agents for research, analysis, and workflow automation. Features unified memory, compliance guardrails, and seamless integrations.

Open Source Alternative to:

Browserbase

BSD-3-Clause Licensed Open Source Software

A curated collection of the 10 best open source software licensed under BSD-3-Clause.