Best Open Source products of September 2025

Discover the best Open Source products of September 2025 as chosen by Product Hunt users.

1 - 10 of 189 Open Source products

1. Kilo CodeOSS AI coding assistant for planning, building & fixing code
•2.3K Followers•
2. GraphBitRust-core, Python-first Agentic AI framework
•1.5K Followers•
3. Dodo PaymentsPayments & Billing for AI, SaaS, and Digital Products.
•1.9K Followers•
NMI Payments
Don’t Integrate Payments Until You Read This Guide
17Promoted#payments#saas#developer-tools
4. VibeSDK by CloudFlare Deploy your AI vibe coding platform on Cloudflare in 1 click
•362 Followers•
5. tamboAn AI orchestration framework for React. Open-source.
•283 Followers•
6. tweakcnDesign your perfect shadcn/ui theme with real-time preview
•207 Followers•
7. SpeakeasyCraft exceptional API experiences
•417 Followers•1 alternative•
8. Sentient ChatA GRID experience providing open-source intelligence
•1.6K Followers•
9. ROMAThe backbone for open-source meta-agents
•682 Followers•
10. Kan.bnThe open source alternative to Trello for teams and makers
•111 Followers•

•••

Community's choice

January 2026 — Best products December 2025 — Best products November 2025 — Best products October 2025 — Best products August 2025 — Best products July 2025 — Best products June 2025 — Best products May 2025 — Best products April 2025 — Best products March 2025 — Best products February 2025 — Best products January 2025 — Best products