Apps With No Account

Working apps that ask for nothing: no sign-up, no email, no sync, no analytics on what you enter. Your data stays in your browser, and you can own the source.

What do these readiness badges mean?

Cards stay compact; this legend explains the signals once.

Runnable: Has a working demo or runnable source path.
Agent-ready: Includes instructions or structure for AI coding agents.
Install-ready: Includes App Link or install guidance.
Deploy-ready: Includes deployment guidance or a documented deploy path.
Local-first: Core data works locally by default where expected.
Production-ready: Runnable, agent-ready, deploy-aware, and reasonably polished.

BLProduction Ready

/health / updated Jul 26, 2026

Blood Pressure Log

v1.0.0

A blood pressure and pulse log with 7- and 30-day averages, ACC/AHA category bands, a morning-versus-evening split, a trend chart, and a printable summary for appointments.

Use it today.
Create your editable copy.
Customize it with AI.

RunnableAgent-readyInstall-readyDeploy-ready

Next.jsReactTypeScript+1

Anyone asked to take readings at home for two weeks, People managing blood pressure long termBest forMITLicense

5 min setupAgent-readyApp Link path

Create My App Try Demo Details

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

BPProduction Ready

/finance / updated Jul 25, 2026

Budget Planner

v1.0.0

A zero-based monthly budget planner with envelopes, real rollover balances, overspend warnings, and a safe-to-spend-per-day figure.

Use it today.
Create your editable copy.
Customize it with AI.

RunnableAgent-readyInstall-readyDeploy-ready

Next.jsReactTypeScript+1

Anyone running a zero-based or envelope budget, Households that want budgeting without linking a bank accountBest forMITLicense

5 min setupAgent-readyApp Link path

Create My App Try Demo Details

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

RBProduction Ready

/personal / updated Jul 30, 2026

Resume Builder

v1.0.0

A resume builder with a sectioned editor, three print-perfect templates, plain-text export for applicant tracking systems, and JSON Resume import and export.

Use it today.
Create your editable copy.
Customize it with AI.

RunnableAgent-readyInstall-readyDeploy-ready

Next.jsReactTypeScript+1

Anyone who hit a paywall at the download button, Developers who want their resume in a versionable open formatBest forMITLicense

5 min setupAgent-readyApp Link path

Create My App Try Demo Details

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

FRProduction Ready

/business / updated Jul 26, 2026

Freelance Rate Calculator

v1.0.0

A freelance hourly and day rate calculator that starts from your target take-home, then subtracts tax, business costs, unpaid weeks, and the hours nobody pays you for.

Use it today.
Create your editable copy.
Customize it with AI.

RunnableAgent-readyInstall-readyDeploy-ready

Next.jsReactTypeScript+1

Freelancers setting a rate for the first time, Contractors comparing a day rate against a salaryBest forMITLicense

5 min setupAgent-readyApp Link path

Create My App Try Demo Details

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

EXProduction Ready

/finance / updated Jul 2, 2026

Expense Tracker

v1.0.0

A fast expense logger with categories, a monthly budget, and a breakdown that shows exactly where the money went.

Use it today.
Create your editable copy.
Customize it with AI.

RunnableAgent-readyInstall-readyDeploy-ready

Next.jsReactTypeScript+1

private money workflows, local-first trackingBest forMITLicense

5 min setupAgent-readyApp Link path

Create My App Try Demo Details

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 App Try Demo Details

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

JCProduction Ready

/personal / updated Jul 17, 2026

Just in Case

v1.0.0

A guided family emergency binder: where everything is, who to call, and what you'd want. Local-first, prints to paper, and stores pointers — never passwords.

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 App Try Demo Details

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

PLProduction Ready

/personal / updated Jul 26, 2026

Planting Calendar

v1.0.0

A vegetable planting calendar that works out start-indoors, transplant, sow, and first-harvest dates for 25 crops from your own last and first frost dates.

Use it today.
Create your editable copy.
Customize it with AI.

RunnableAgent-readyInstall-readyDeploy-ready

Next.jsReactTypeScript+1

Anyone starting seeds indoors for the first time, Gardeners planning a full season in one sittingBest forMITLicense

5 min setupAgent-readyApp Link path

Create My App Try Demo Details

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.

Try Demo

Use the original Foundation Base demo.

Create My App

Create the editable source package.

Customize with AI

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

Deploy App Link

Publish your own stable URL.

Install Your Version

Add your deployed App Link to your phone or desktop.

How Foundation Base compares

Typical free appFoundation Base foundation

Free until you have entered enough data to be locked inFree, and the source is yours

Your data lives on their serverYour data lives in your browser

Export if the plan allows itExport, or take the whole codebase

Demo Link, Preview Link, App Link

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

Do these apps really work without an account?

Yes. There is no sign-up on any of them because there is no server holding your data. Everything is stored by your own browser on the device you used.

What happens to my data if I clear my browser?

It is deleted, because that is where it lives. Several of these apps include an export, and once you download the source you can add whatever backup or sync you want.

Can I use them offline?

Yes. Each one installs to a home screen and keeps working with no connection, since nothing it needs comes from a network.

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.

Built for safe starting points

Every foundation is treated as code, not content. Contributions are reviewed before publication, and foundations are checked for hidden network behavior, unsafe scripts, secrets, and unclear setup paths.

See standards