Toolhaus

Free online tools: PDF, image, text, unit converters, and calculators

Free tools for everyday tasks

Toolhaus is a growing collection of calculators and converters for finance, health, PDFs, images, text, and code — plus quick everyday lookups like currency rates and weather. Every tool opens straight into its interface: no sign-up, no installation, and no account to create.

New tools are added regularly based on what people actually search for, and existing ones get expanded with clearer instructions, worked examples, and answers to common questions. Browse by category below, or use search to jump straight to what you need.

Categories

Finance & Investment

Calculators for interest, loans, mortgages, and investment planning.

Unit Converters

Convert length, weight, temperature, data, and more.

Developer Tools

Encoders, formatters, decoders, and generators for developers.

Count, transform, and clean up text quickly.

Work with dates, durations, timestamps, and time zones.

Convert currencies with live exchange rates.

Health & Fitness

Body-metric and everyday health calculators, for information only.

Convert, mix, and generate color palettes and codes.

Convert, resize, and compress images right in your browser.

Quick everyday lookups like live weather.

Merge, split, rotate, convert and edit PDF files right in your browser.

Popular tools

Compound Interest Calculator

See how your savings grow with compound interest and regular contributions.

Mortgage Calculator

Model mortgage payments with grace periods, staged rates, and equal-payment or equal-principal repayment.

Extract selectable PDF text into an editable Word document.

Currency Converter

Convert between currencies using live exchange rates, with a manual fallback.

Calculate your Body Mass Index (BMI) from height and weight, in metric or imperial units.

Loan Calculator

Calculate the monthly payment, total interest, and total cost of any fixed-rate loan.

Expense Splitter

Split shared expenses among a group and see who owes whom the least transfers.

Image Converter

Convert images between PNG, JPEG and WebP right in your browser.