No signup. No watermarks. No limits. Every tool runs in your browser — your files never leave your device.
💡 Your files never leave your device — we literally can't see them
Categories
View all →PDF Tools
Merge, split, compress, and convert PDFs — all in your browser
Finance Calculators
Tax, mortgage, interest, and investment calculators for US & UK
Image Tools
Compress, resize, and convert images without quality loss
Legal Documents
Generate NDAs, contracts, and agreements as downloadable PDFs
Text Tools
Word counter, case converter, diff checker, and more
Developer Tools
JSON formatter, regex tester, Base64, color picker
Health & Fitness
Calorie, macro, BMI, and body composition calculators
Real Estate
Mortgage, affordability, and property investment calculators
Business Tools
Invoice generator, profit margin, break-even analysis
Writing Tools
Headline analyzer, readability checker, citation generator
Security & Utility
Password generator, QR codes, hash generators — all client-side
Student Tools
GPA calculator, citation generator, study planner
HR & Payroll
Paycheck, PTO, overtime, and employee cost calculators
Popular Tools
UK Stamp Duty Calculator
Calculate UK SDLT for any property purchase
Use tool →Compound Interest Calculator
See how your investments grow over time
Use tool →Word Counter
Count words, characters, and reading time
Use tool →Password Generator
Generate strong passwords — never transmitted
Use tool →UK Mortgage Affordability Calculator
Find how much mortgage you can afford
Use tool →Macro Calculator
Calculate daily protein, carbs, and fat
Use tool →JSON Formatter & Validator
Format, validate, and minify JSON
Use tool →Case Converter
Convert text between different cases
Use tool →How many words can you type in 15 seconds?