Curated toolkits for the way you actually work. Every tool is free and runs in your browser.
A free developer toolkit: Base64, JSON, hashing, UUID, timestamps, data format converters and more. No sign-up, all in your browser.
84 toolsA free student toolkit: GPA and grade calculators, geometry, algebra, statistics and science formula tools. No sign-up, in your browser.
118 toolsA free writing toolkit: word and character counters, readability scores, passive voice and filler word finders, case converters. In your browser.
72 toolsA free crypto toolkit: profit and loss, position size, liquidation price, impermanent loss, gwei and wei converters. No wallet connect.
27 toolsA free home toolkit: paint, tile, flooring, concrete and mulch calculators, BTU sizing, rent affordability and cap rate. In your browser.
24 toolsA free money toolkit: savings goals, debt payoff, FIRE, compound interest, budgeting and salary calculators. No sign-up, in your browser.
46 toolsA free health toolkit: BMI, TDEE, macros, heart rate zones, one rep max, running pace and body fat calculators. In your browser.
46 toolsA free design toolkit: color picker, palette and gradient generators, contrast checker, image resize, crop and convert. In your browser.
25 toolsA free PDF toolkit: merge, split, compress, rotate, PDF to image and image to PDF. Everything runs in your browser, nothing uploaded.
10 toolsA free converter toolkit: length, weight, temperature, cm to inches, kg to lbs, data storage and more. Instant, in your browser.
79 toolsA free calculator toolkit: percentage, tip, loan, mortgage, age, BMI and date calculators for money, health and daily life.
95 toolsA free marketing toolkit: meta tags, SERP preview, keyword density, UTM builder, hashtag and caption generators, engagement calculators.
45 toolsA free generator toolkit: passwords, usernames, QR codes, UUIDs, lorem ipsum, business names and random data. Fast and private.
22 toolsA free network toolkit: CIDR and subnet calculators, URL and query string parsers, HTTP status and MIME references. In your browser.
22 tools