Every tool.
One simple place.

Free calculators, converters, text, image, PDF, and developer tools. Fast, private, and in your browser.

⌘K

Ten families of tools

Calculators, converters, text, images, PDFs, and more — open a family, or search by name.

Calculators

Percentages, loans, BMI, dates, and everyday math — with the formula in view.

Image Tools

Compress, resize, crop, convert, and inspect images. Files stay on this device.

PDF Tools

Merge, split, convert, and inspect PDFs in your browser when possible.

Converters

Length, weight, energy, pressure, and more — instant unit conversion in your browser.

Text Tools

Count words, change case, clean pasted text, and sort lines. Your text stays on this device.

Developer Tools

JSON, Base64, JWT, regex, UUIDs, and formatters. Local processing, no account required.

Security Tools

Passwords, hashes, JWT decode, and encoding. Nothing is logged or stored.

SEO Tools

Meta tags, Open Graph, robots.txt, slugs, UTM links, and social previews.

Design Tools

Colors, palettes, contrast, and copy-ready CSS generators.

Everyday Tools

Timers, dice, QR codes, and simple daily cost tools.

Popular tools

A mix from every family — calculators, converters, and utilities.

Calculator

Percentage

Calculate percentages, find what percent one number is of another, and measure percentage change.

Calculator

Loan

Estimate monthly payments, total interest, and total cost for a fixed-rate loan.

Image Tool

Compress

Shrink JPEG/WebP quality in the browser and download the result.

Image Tool

Resize

Resize an image to exact pixel dimensions, locally.

PDF Tool

Merge

Merge multiple PDFs into one file in the browser.

PDF Tool

JPG→PDF

Place one or more images into a PDF and download it.

Converter

Length

Convert meters, kilometers, miles, feet, inches, and more instantly.