Foundation Base

Open Source Anki Alternative

Start from a working spaced-repetition flashcard app with an SM-2 scheduler you can read, change, and host yourself.

Recommended foundation

Start with the working app that most closely matches this use case.

Details
FCProduction Ready

/education / updated Jul 25, 2026

Flashcards

v1.0.0

A flashcard app with decks, an SM-2 spaced repetition scheduler, four-grade reviews with visible intervals, bulk import, and a progress view.

  • Use it today.
  • Create your editable copy.
  • Customize it with AI.
RunnableAgent-readyInstall-readyDeploy-ready
Next.jsReactTypeScript+1
Students revising a subject over weeks rather than a night, Language learners building vocabularyBest forMITLicense
5 min setupAgent-readyApp Link path
Create My AppTry DemoDetails

Creates your editable project with setup files and AI-agent instructions.

What you can build

  • A language vocabulary trainer
  • A certification revision app
  • A shared classroom deck
  • A spaced-repetition reader companion

Alternative related foundations

KBProduction Ready

/education / updated Jul 1, 2026

Knowledge Base

v1.0.0

A documentation foundation for teams publishing guides, help centers, internal docs, and searchable knowledge hubs.

  • Use it today.
  • Create your editable copy.
  • Customize it with AI.
RunnableAgent-readyInstall-readyDeploy-ready
Next.jsReactTypeScript+1
learning products, cohortsBest forMITLicense
5 min setupAgent-readyApp Link path
Create My AppTry DemoDetails

Creates your editable project with setup files and AI-agent instructions.

HAProduction Ready

/personal / updated Jul 2, 2026

Habit Tracker

v1.0.0

A calm habit tracker with a seven-day grid, one-tap check-ins, and streaks computed from what you actually did.

  • Use it today.
  • Create your editable copy.
  • Customize it with AI.
RunnableAgent-readyInstall-readyDeploy-ready
Next.jsReactTypeScript+1
private personal apps, owned dataBest forMITLicense
5 min setupAgent-readyApp Link path
Create My AppTry DemoDetails

Creates your editable project with setup files and AI-agent instructions.

BKProduction Ready

/personal / updated Jul 4, 2026

Book Tracker

v1.0.0

A reading tracker with to-read, reading, and finished shelves, page-level progress bars, star ratings, and a yearly reading goal.

  • Use it today.
  • Create your editable copy.
  • Customize it with AI.
RunnableAgent-readyInstall-readyDeploy-ready
Next.jsReactTypeScript+1
private personal apps, owned dataBest forMITLicense
5 min setupAgent-readyApp Link path
Create My AppTry DemoDetails

Creates your editable project with setup files and AI-agent instructions.

Pick a working app. Make it yours.

Try the shared demo, create your editable copy, customize with AI, deploy your App Link, and install your version.

1

Try Demo

Use the original Foundation Base demo.

2

Create My App

Create the editable source package.

3

Customize with AI

Open the folder in Claude Code, Codex, Cursor, or another coding agent.

4

Deploy App Link

Publish your own stable URL.

5

Install Your Version

Add your deployed App Link to your phone or desktop.

The Foundation Base demo does not update when you customize your copy. Install your own App Link after you deploy.

Demo Link

The original Foundation Base version. Good for trying the app.

Preview Link

A temporary testing link while your app is being customized.

App Link

Your stable deployed URL. Install this version if you want your changes to appear on your phone or desktop.

Questions

What happens when I click Create My App?

You download an editable source package with setup files and AI-agent instructions. Your copy is separate from the Foundation Base demo.

Does the Foundation Base demo update when I customize my copy?

No. The demo is the original shared version. Install your own deployed App Link when you want your customized app on a device.

Can I use Claude Code, Codex, Cursor, or another agent?

Yes. Foundations are designed to be opened by an AI coding agent after you download and unzip the source package.