Foundation Base

Finance foundations

Invoices, estimates, dashboards, and money movement workflows. These open-source app foundations are for people who want a working finance starting point they can use immediately, customize with AI, deploy as their own App Link, and install as their own version.

Productivity4Business6Finance6Health5CRM1Developer Tools4Education2Personal8AI1Utilities3All foundations40

Start here in Finance

Agent-ready and practical options from this category only.

INProduction Ready

/finance / updated Jul 1, 2026

Invoice & Estimates

v1.0.0

A billing document foundation for estimates, invoices, client approval, payment links, and clean PDF output.

  • 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 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.

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.
Popular searches

Guided Discovery

Pick a curated path first, or keep scrolling to search the full catalog.

Best first foundations

Straightforward apps that make the Foundation Base loop easy to learn.

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 AppTry DemoDetails

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

Best for business

Client, sales, operations, and product foundations you can make your own.

INProduction Ready

/finance / updated Jul 1, 2026

Invoice & Estimates

v1.0.0

A billing document foundation for estimates, invoices, client approval, payment links, and clean PDF output.

  • 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 AppTry DemoDetails

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

Recently verified

Freshly updated foundations with current setup paths.

DMProduction Ready

/finance / updated Jul 26, 2026

Drawdown Monitor

v1.0.0

A daily loss-limit monitor that shows remaining headroom rather than P&L, escalates through defined states, and latches at the limit until you acknowledge it.

  • Use it today.
  • Create your editable copy.
  • Customize it with AI.
RunnableAgent-readyInstall-readyDeploy-ready
Next.jsReactTypeScript+1
Prop-firm evaluation and funded accounts with hard daily loss limits, Traders enforcing their own rules with something outside their attentionBest forMITLicense
5 min setupAgent-readyApp Link path
Create My AppTry DemoDetails

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 AppTry DemoDetails

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

DPProduction Ready

/finance / updated Jul 4, 2026

Debt Payoff Planner

v1.0.0

A debt snowball and avalanche calculator: list your debts, set an extra monthly payment, and compare payoff time, total interest, and payoff order side by side.

  • 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 AppTry DemoDetails

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 AppTry DemoDetails

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

SUProduction Ready

/finance / updated Jul 2, 2026

Subscription Tracker

v1.0.0

Track every recurring charge, see your true monthly burn, and catch renewals before they catch you.

  • 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 AppTry DemoDetails

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

INProduction Ready

/finance / updated Jul 1, 2026

Invoice & Estimates

v1.0.0

A billing document foundation for estimates, invoices, client approval, payment links, and clean PDF output.

  • 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 AppTry DemoDetails

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

Install-ready apps

Foundations with documented App Link or install guidance.

INProduction Ready

/finance / updated Jul 1, 2026

Invoice & Estimates

v1.0.0

A billing document foundation for estimates, invoices, client approval, payment links, and clean PDF output.

  • 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 AppTry DemoDetails

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 AppTry DemoDetails

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

SUProduction Ready

/finance / updated Jul 2, 2026

Subscription Tracker

v1.0.0

Track every recurring charge, see your true monthly burn, and catch renewals before they catch you.

  • 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 AppTry DemoDetails

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

DPProduction Ready

/finance / updated Jul 4, 2026

Debt Payoff Planner

v1.0.0

A debt snowball and avalanche calculator: list your debts, set an extra monthly payment, and compare payoff time, total interest, and payoff order side by side.

  • 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 AppTry DemoDetails

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 AppTry DemoDetails

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

DMProduction Ready

/finance / updated Jul 26, 2026

Drawdown Monitor

v1.0.0

A daily loss-limit monitor that shows remaining headroom rather than P&L, escalates through defined states, and latches at the limit until you acknowledge it.

  • Use it today.
  • Create your editable copy.
  • Customize it with AI.
RunnableAgent-readyInstall-readyDeploy-ready
Next.jsReactTypeScript+1
Prop-firm evaluation and funded accounts with hard daily loss limits, Traders enforcing their own rules with something outside their attentionBest forMITLicense
5 min setupAgent-readyApp Link path
Create My AppTry DemoDetails

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

Featured Apps

Curated starting points with working demos and real downloads.

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 AppTry DemoDetails

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

DPProduction Ready

/finance / updated Jul 4, 2026

Debt Payoff Planner

v1.0.0

A debt snowball and avalanche calculator: list your debts, set an extra monthly payment, and compare payoff time, total interest, and payoff order side by side.

  • 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 AppTry DemoDetails

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 AppTry DemoDetails

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

Browse All Apps

6 apps

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 AppTry DemoDetails

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

DPProduction Ready

/finance / updated Jul 4, 2026

Debt Payoff Planner

v1.0.0

A debt snowball and avalanche calculator: list your debts, set an extra monthly payment, and compare payoff time, total interest, and payoff order side by side.

  • 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 AppTry DemoDetails

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 AppTry DemoDetails

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

DMProduction Ready

/finance / updated Jul 26, 2026

Drawdown Monitor

v1.0.0

A daily loss-limit monitor that shows remaining headroom rather than P&L, escalates through defined states, and latches at the limit until you acknowledge it.

  • Use it today.
  • Create your editable copy.
  • Customize it with AI.
RunnableAgent-readyInstall-readyDeploy-ready
Next.jsReactTypeScript+1
Prop-firm evaluation and funded accounts with hard daily loss limits, Traders enforcing their own rules with something outside their attentionBest forMITLicense
5 min setupAgent-readyApp Link path
Create My AppTry DemoDetails

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

INProduction Ready

/finance / updated Jul 1, 2026

Invoice & Estimates

v1.0.0

A billing document foundation for estimates, invoices, client approval, payment links, and clean PDF output.

  • 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 AppTry DemoDetails

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

SUProduction Ready

/finance / updated Jul 2, 2026

Subscription Tracker

v1.0.0

Track every recurring charge, see your true monthly burn, and catch renewals before they catch you.

  • 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 AppTry DemoDetails

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

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