Every resource founders actually use, in one library.

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

1. This is the official, source of truth for turning a page button into a real conversation, no third party sitting between you... WhatsApp Help Center Tool · 5 min read · Starting Up WhatsApp click to chat (wa.me links) WhatsApp (Meta) In 2 answers
2. Images are the single biggest reason landing pages crawl on a slow 4G connection, and Squoosh fixes that in your browser with... Google Chrome Labs Tool · A few minutes per image · Starting Up Squoosh Google Chrome Labs In 2 answers
3. If you just want to know how many people showed up and how long they stayed, without slowing your page or bolting on a cookie... plausible.io Tool · Starting Up Plausible Analytics Plausible Insights In 2 answers
4. Figma's free plan is genuinely enough to design, tweak, and export a full logo set (SVG for print, PNG for the web) without... Figma Tool · Ongoing tool · Starting Up Figma (free plan) Figma In 2 answers
5. When you have a name and a company but no address, Hunter is the default first stop: type the person and the domain, and it... hunter.io Tool · Starting Up Hunter Email Finder Hunter In 2 answers
6. This is the platform a founder graduates to once a free WhatsApp or Discord group starts breaking down and they need courses,... circle.so Tool · Pricing page, quick scan · Starting Up Circle Pricing Circle In 2 answers
7. When you need a one-time cash injection without giving up equity, this is an actual India-based platform you can approach,... Recur Club Tool · Platform, application-based · Starting Up Recur Club (revenue-based financing and debt for Indian founders) Recur Club In 2 answers
8. A free, no-signup calculator that forces you and your co-founder to actually weigh the inputs (idea, roles, who is full time,... Foundrs Tool · ~10 minutes to work through · Starting Up Foundrs Co-Founder Equity Calculator Foundrs In 2 answers
9. You do not want to build a three-year model from a blank sheet, and you also do not want a generic one-size template that does... Forecastr Template · 12 templates, make a copy and fill in · Starting Up Forecastr Free Startup Financial Model Templates (Excel and Google Sheets) Forecastr In 2 answers
10. This is the spreadsheet to actually model your cap table forward three rounds before you sign the first term sheet. It adds... Foresight Template · spreadsheet template · Starting Up Cap Table and Exit Waterfall Modeling Tool (Foresight) Foresight (Taylor Davidson) In 2 answers
11. This is the one term sheet to benchmark your own against. YC wrote out the fairest single-page term sheet they could from... Y Combinator Template · 20 min read + Word template · Starting Up A Standard and Clean Series A Term Sheet (with downloadable template) Jason Kwon and Aaron Harris In 2 answers
12. You connect your Gmail and Signal maps your invisible network against 3M+ founder to VC connections, so you can see which of... NFX Tool · 30 min to set up · Starting Up Signal: the free network map that reveals your intro paths to specific VCs NFX In 2 answers
13. A friendly form tool for running the interviews, waitlists, and fake door signups that power a no code MVP. You can gauge... typeform.com Tool · Starting Up Typeform typeform.com In 2 answers
14. Your short answer names the LOI as a real B2B validation signal, and this is a clean, lawyer-built template made for exactly... Common Paper Template · 1 to 2 page template · Starting Up Free Letter of Intent Template Common Paper In 2 answers
15. When your manual matching works and you finally do need software, this guide plus its no code builder lets you stand up a real... Sharetribe Academy Tool · ~40 min read · Starting Up Create a Marketplace: Build Your Platform in 10 Steps Sharetribe In 2 answers
16. Your short answer says to track outreach like a funnel, and this gives you a free spreadsheet to do it. Log every contact as... Close.com Template · Downloadable templates · Starting Up Sales Pipeline Templates (Excel and Google Sheets) Close.com In 2 answers
17. A ready made structure for running and logging customer interviews the Mom Test way, so your manual research is captured... Notion Marketplace (GrowthHacking.World) Template · Notion template · Starting Up Problem-Solution Navigator: A Mom Test Based Interview Template GrowthHacking.World In 2 answers
18. Free templates including the Positioning Canvas and a messaging document you can fill in for your own product. They turn the... aprildunford.com Template · Downloadable · Starting Up April Dunford Positioning Templates April Dunford In 2 answers
19. A ready question bank organized by interview stage, so you walk into a customer conversation with real questions instead of... Perspective AI Template · Starting Up 60 Customer Discovery Questions (Mom Test-Approved) Perspective AI In 2 answers
20. A clear, jargon free explainer of the problem plus practical seeding strategies (single side focus, faking supply,... Sharetribe Marketplace Glossary Tool · 10 min read · Starting Up What Is the Chicken and Egg Problem in Marketplaces? Sharetribe In 2 answers
21. An all in one, generously free product analytics tool that early teams can set up in minutes, with events, funnels, session... PostHog Tool · Starting Up PostHog Product Analytics PostHog In 2 answers
22. Your short answer says to watch real sessions, and this is the most common tool for doing exactly that: replaying where new... Hotjar Tool · self-serve tool · Starting Up Hotjar Session Recordings Hotjar In 2 answers
23. The ready-to-use questionnaire from the Founder Dating Playbook, covering roles, values, money, commitment, and how you each... First Round Review Template · Starting Up 50 Questions to Explore With a Potential Co-Founder Gloria Lin In 2 answers
24. A free calculator that turns the benchmarks into concrete grant sizes for a specific role, level, and stage. Plug in your early... Index Ventures Tool · interactive tool · Starting Up OptionPlan by Index Ventures Index Ventures In 2 answers

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