Free Small Tools is a collection of 300+ free online tools across 20 categories. Use them to check your IP address, build a ZIP archive, compress a photo, generate a strong password, decode a JWT, convert units, write meta tags, or work out a percentage — each one runs right in your browser, with no downloads, no registration and no usage limits.
Every tool is built to be quick, straightforward and private. Text, math, converter, image and ZIP tools process your files and data on your own device and never upload them, while online checkers fetch live information on demand. Most work on a phone as well as a desktop, and all of them are free to use as often as you like.
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Text Analysis Tools for word counts, readability and fancy text, Unit Converters covering measurements, cooking, shoes and paper sizes, Math Calculators for equations, matrices and percentages, Finance Calculators for loans, interest and invoices, Marketing Calculators for ROAS, CAC and campaign metrics, Image Tools for resizing, converting and compressing, Design Tools for mockups, collages and pixel art, CSS Tools for minifying, validating and generating, ZIP Tools to create, extract and merge archives, Security Tools for password strength, hashes and link safety, SEO Tools and Website Diagnostics for audits, DNS, SSL and status checks, plus Developer Tools, Health Calculators, Utilities and Fun Tools. New tools arrive regularly — see the complete tools directory for everything.