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The toolbox for founders building with AI.

Which tool to use for payments, email, login or hosting, what each one costs, and what’s taking off on GitHub this week. 72 tools compared, free, no sign-up.

Compare tools Trending repos
LiveFree · no sign-up

Tools by goal

72 tools for payments, email, login, database, hosting and AI, with the price read on the official page, the free tier, who each one fits and when to skip it.

Most compared

See all 18 goals
LiveFree · no sign-up

Trending GitHub repos

Who gained the most stars this week, updated every day.

  1. 1reamorluto+39k
  2. 2cleanyourtvGathin23+18k
  3. 3dsh-our-free-modelEbony-Vinyl+14k
See the full ranking
Live

design.md library

20 styles measured from real product sites. Drop one in your project and your AI follows it.

Browse styles
LiveFree · no sign-up

Stack builder

Build your app’s stack piece by piece: pick what you’re making, put a technology in each slot and see when it’s complete, with what each piece costs and whether you can start without paying.

Start building
LiveFree · no sign-up

Tech directory

7,741 technologies in 124 categories, from hosting and payments to analytics, CMS and AI, with what each one does and its price range.

LiveFree · no sign-up

Case studies

How 30 software companies built their product: every tool, what it is for, why they chose it and the source. Copy any stack into the builder.

In the pipeline

Built in phases, in this order. Each one gets its own page.

  • Free credits for startupsPhase 2

    Cloud, AI and tool programs that give startups credits, and how to apply to each.

    Example

    AWS ActivateGoogle for StartupsMicrosoft for Startups
  • AI cost calculatorPhase 2

    How much each user costs you per month when your app calls Claude, GPT or Gemini.

    Example

    $0.08 / user / month

  • The growth playbookPhase 4

    How famous apps keep you inside: onboarding, streaks, push, emails, paywalls and funnels, with the dark patterns flagged.

    Example

    • Visit100%
    • Sign up46%
    • Habit24%
    • Pays9%
How it works

Browse free. Take it to your project. Faundr keeps it on track.

  1. 01

    Pick

    Compare the tools for each part of your app and see what people are building with. Every page is open.

  2. 02

    Take it

    Each page has a paste for Claude Code or Codex, so your AI starts from the right choice.

  3. 03

    Keep it

    With Faundr installed, every stack and design decision stays in memory and every screen is checked against it.

Start with the right stack.

Then let Faundr keep every decision your AI makes on track.

Compare tools Get started free