AI generated apps
Fifteen free tools. Zero accounts, ads, or tracking.
Everyday utilities built as standalone web apps. They run entirely in your browser — your data stays on your device.
Disclaimer: These AI-generated apps are examples built for simple client requests. They were done free of charge, and each client approved them to be uploaded and shared publicly on this site. They are illustrative utilities only and are separate from Anvil’s paid engineering services.
Invoice Generator
Create professional invoices with live preview, taxes and totals — print or save as PDF in one click.
Open appPomodoro Timer
Focus sessions with breaks, chimes, notifications and daily productivity stats.
Open appPassword Generator
Cryptographically secure passwords and passphrases, with entropy and crack-time analysis.
Open appUnit Converter
Length, mass, temperature, data, pressure, fuel economy and more — converted live, both ways.
Open appMarkdown Editor
Write markdown with live preview, toolbar shortcuts, and export to .md or styled HTML.
Open appJSON Formatter
Beautify, minify and validate JSON, then explore it in a collapsible tree with path breadcrumbs.
Open appColor Palettes
Generate harmonious palettes, check WCAG contrast, and export straight to CSS variables.
Open appExpense Tracker
Track income and spending by month with budgets, category breakdowns and CSV export.
Open appHabit Tracker
Build streaks with daily check-ins and a GitHub-style heatmap for every habit.
Open appText Toolkit
Word counts, case conversion, line tools, find & replace, Base64/URL encoding and more.
Open appRegex Tester
Test regular expressions with live match highlighting, capture groups, replace preview and a cheatsheet.
Open appDiff Checker
Compare two texts side by side with line and character-level highlighting — export a unified diff.
Open appDate Calculator
Days between dates, add or subtract time, exact age, saved countdowns, week numbers and more.
Open appLoan & Interest
Loan payments with full amortization schedules, extra-payment savings and compound interest growth.
Open appWorld Clock
Live city clocks, timezone conversion and a meeting planner that shows overlapping work hours.
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Disclaimer: These AI-generated apps are examples built for simple client requests. They were done free of charge, and each client approved them to be uploaded and shared publicly on this site. They are illustrative utilities only and are separate from Anvil’s paid engineering services.