• Algebra Toolstwenty-eight exact calculators that show their working
• Business Toolsthirty-two calculators for margin, marketing and cash
• Cipher Toolstwenty classical ciphers that never upload anything
• Dev Toolsforty tools for code, repositories and the files around them, and none of it run
• Colour Toolsfifteen tools for colour, contrast and accessibility
• Content Toolstwenty tools for posts, plans and headlines that never post anything
• Convert Toolstwenty-six converters that say which scale they used
• CSS Toolstwenty-seven tools for style sheets, with the arithmetic done exactly
• Data Toolsthirty-seven tools for JSON, CSV and the formats between them, and none of it uploaded
• Date Toolstwenty-five calculators for dates, calendars and clocks
• Draw Toolstwenty-six generators for images and printable sheets, every one of them vector source
• Education Toolsthirty worksheets, puzzles and tables, printed from your own browser
• Fancy Texttwenty-five Unicode text tools that never upload anything
• Food Toolsthirty kitchen calculators that ship no food database
• Game Toolsnineteen tools used while playing, every draw of them reproducible
• Geo Toolsthirty calculators for shapes, dimensions and coordinates
• Health Toolsthirty-two calculators that are arithmetic, not advice
• Hobby Toolsthirty calculators for making, growing, keeping and playing
• Home Toolsthirty-six calculators for a house, a garden and a car
• Image Toolsthirty-five operations on a picture, none of which uploads it
• Invest Toolstwenty-seven calculators for investing and trading
• Math Toolstwenty-two calculators that show their working
• Money Toolsthirty-five calculators for loans, budgets and pay
• Net Toolstwenty-four tools for subnets, addresses and records that never query anything
• Number Toolsthirty-one calculators that get the last digit right
• Office Toolstwenty-three documents that lay themselves out
• Random Toolseighteen draws, picks and generators, every one of them repeatable
• Science Toolsthirty-nine calculators for electronics, physics and chemistry
• Security Toolseighteen tools for passwords, codes and secrets that never upload one
• Sound Toolstwenty-three tools that make, change and read a sound file
• Sport Toolstwenty-seven calculators for running, riding and training
• Stat Toolstwenty-eight tools for statistics and probability
• Text Toolsforty-nine text tools that never upload anything
• Web Toolsthirty-three generators for meta tags, links, headers and server rules, checked against the standard
• Work Toolsfifteen tools for a working day, and the eight this page cannot honestly be