Every resource founders actually use, in one library.

What founders use most, ranked by how many answers lean on it.

1. A ready-to-use set of interview scripts (discovery, validation, and jobs-to-be-done) with probing questions built in, so you... CleverX Template · 1 to 2 pages · Starting Up User Interview Script Template CleverX
2. A discovery-focused interview template that keeps questions on behaviours and experiences rather than reactions to your... Great Question Template · 1 to 2 pages · Starting Up Customer Discovery Interview Template Great Question
3. Often your first product does not need code, and a shared Notion page or database can stand in as the whole thing while you... notion.com Tool · Starting Up Notion notion.com
4. A structured, free program that reverse-engineers how B2B startups actually find product-market fit, built from patterns across... First Round Course · multi-part guide · Starting Up The PMF Method First Round
5. A structured how-to you can follow, covering when to run a Wizard of Oz test, the steps, the tools, and the pros and cons.... Learning Loop Template · Starting Up Wizard of Oz Experiment (play) Learning Loop
6. This entry frames the Wizard of Oz test as one experiment in a wider validation toolkit, with clear guidance on cost, evidence... Kromatic (The Real Startup Book) Template · Starting Up Wizard of Oz (The Real Startup Book) Kromatic (The Real Startup Book)
7. A ready to use script for interviewing a recent customer about why they switched, built entirely around past behaviour and... Deploy Empathy Template · script · Starting Up Customer Interview Script Template: The JTBD Switch Interview Michele Hansen
8. A ready made four question survey for finding the price range your customers see as fair, including the point where "too cheap"... Contentsquare Template · Starting Up Van Westendorp Price Sensitivity Survey Template Contentsquare
9. Talking to prospects only pays off if you capture what you hear in a way you can act on. This free Google Doc gives you a... Kromatic Template · Google Doc template · Starting Up Customer Discovery Note-Taking Template Kromatic
10. The Kano model gives you a simple way to sort features into must-haves, performance features, and delighters, so you can see... Folding Burritos (Daniel Zacarias) Tool · ~30 min read · Starting Up The Complete Guide to the Kano Model Daniel Zacarias
11. This is the concrete proof that payments are a solved problem you should borrow: a few steps and you are charging real cards... Stripe Documentation Tool · Docs plus setup · Starting Up Accept a payment Stripe
12. If your MVP is really about testing willingness to pay, you may not need to write payment code at all: a Payment Link is a URL... Stripe Documentation Tool · Docs plus setup · Starting Up No-code options for using Stripe (Payment Links) Stripe
13. For an Indian MVP, this is usually the right payments choice because it supports UPI, cards, net banking, and wallets out of... Razorpay Documentation Tool · Docs plus setup · Starting Up Razorpay Quickstart Guide Razorpay
14. Clerk gives you prebuilt sign up, sign in, and profile screens, so the whole login surface arrives finished rather than... Clerk Documentation Tool · Docs plus setup · Starting Up Clerk Quickstart Clerk
15. Firebase Auth is the battle tested default for mobile first and Google Cloud based apps, with a very generous free tier. It... Firebase Documentation Tool · Docs plus setup · Starting Up Firebase Authentication Google
16. Supabase pairs auth with a Postgres database, so if your app is data heavy you get login and storage from one open source stack... Supabase Documentation Tool · Docs plus setup · Starting Up Supabase Auth Supabase
17. Sending reliable email (verification, password resets, notifications) is its own deliverability problem, and Resend lets you... Resend Tool · Docs plus setup · Starting Up Resend Documentation Resend
18. If you decide the mobile web is your path, this free course teaches how to make it installable, work offline, and feel app like... web.dev (Google) Course · Starting Up Learn PWA web.dev (Google)
19. A roundup of free tracking plan templates from Segment, Mixpanel, Amplitude, and others, so you do not start from a blank page.... Avo Template · Short read plus templates · Starting Up 9 Free Tracking Plan Templates from Mixpanel, Amplitude, Segment, and More Avo
20. The other product analytics tool named in our short answer, strong for event based funnels and retention once you know the... Mixpanel Tool · Starting Up Mixpanel Mixpanel
21. A maker community built around shipping in public where every post is a completed to-do, so it turns building in public into an... WIP (wip.co) Tool · ongoing · Starting Up WIP Marc Kohlbrugge
22. Free, well-produced lessons that take you from nothing to a real, responsive site and CMS-driven pages on Webflow, one of the... Webflow University Course · Self-paced · Starting Up Webflow University Webflow
23. When you hit the complexity your short answer warns about (real permissions, data models, backend logic), this is the... No Code MBA Course · Multi lesson track · Starting Up The Complete Guide to Bubble No Code MBA
24. Setu is NPCI-certified and built for UPI-first collection, including deep links and mandates, which suits India-only products... Setu Tool · Starting Up UPI APIs for Seamless Payments Setu

Show the next 24