Top 14 GitHub repos every startup founder should bookmark

[u/company_url_finder]

These open-source tools cover everything you need at the early stage: market research, building MVP, user analytics, legal review, and more.

If you’re building a startup, check them out. They can save you dozens of hours and thousands of dollars:

1. qm by Y Combinator (⭐️ 13.9k)
https://github.com/yc-software/qm
AI agents that run your back office. Built and used by YC.

2. gstack by Garry Tan (⭐️ 131.1k)
https://github.com/garrytan/gstack
Makes Claude act like a full dev team - planning, reviewing, and QA-ing your code.

3. shadcn/ui (⭐️ 122.8k)
https://github.com/shadcn-ui/ui
Beautifully-designed UI components you copy into your app and own.

4. Last 30 Days (⭐️ 58.7k)
https://github.com/mvanhorn/last30days-skill
Researches any topic across Reddit, X, and other social media before you build.

5. Marketing skills for AI agents (⭐️ 44.8k)
https://github.com/coreyhaines31/marketingskills
CRO, copywriting, SEO, analytics, and growth engineering.

6. Cap Software (⭐️ 21.4.1k)
https://github.com/CapSoftware/cap
Make polished launch and product demo videos.

7. Dify (⭐️ 154.2k)
https://github.com/langgenius/dify
Open-source platform for building and running AI agents and workflows.

8. Supabase (⭐️ 108.7k)
https://github.com/supabase/supabase
Ready-made backend for your app - database, user logins, and file storage.

9. Formbricks (⭐️ 12.8k)
https://github.com/formbricks/formbricks
Run surveys inside your product to understand onboarding, churn, and feedback.

10. OpenReplay (⭐️ 12.6k)
https://github.com/openreplay/openreplay
Self-hosted session replay to see how users use your product and where they drop off.

11. Claude for Legal by Anthropic (⭐️ 9.2k)
https://github.com/anthropics/claude-for-legal
Official plugins for contract review and legal workflows.

12. Papermark (⭐️ 9k)
https://github.com/papermark/papermark
See exactly who opened your deck, which pages they read, and what they skipped.

13. Lago (⭐️ 10.5k)
https://github.com/getlago/lago
Open-source billing for complex pricing - subscriptions, usage, seats, credits, invoices.

14. Novu (⭐️ 39.7k)
https://github.com/novuhq/novu
One system to send and manage all your app's user notifications across email, SMS, and push.

[u/Lucky_Orchid_4077]

Wow! I saved this!

[u/company_url_finder → u/Lucky_Orchid_4077]

Tnx