All categories

Every tool is grouped by the job it does. Live categories are open now; the rest are planned.

Tool categories

Format, inspect, encode, and generate development data without sending it to a server.

Browse developer tools

Compress, resize, convert, and crop images.

Browse image tools

Count, clean, compare, and reshape text in one place.

Browse text tools

Percentages, loans, interest, BMI, and splitting a bill, with clear workings.

Browse calculators

Work out ages, the days between dates, hours worked, and convert timestamps and Excel dates.

Browse date and time tools

Passwords, QR codes, random values, and other things you would rather not invent.

Browse generators

Meta tags and previews, robots.txt and sitemaps, campaign links, and schema markup for site owners.

Browse web and seo tools