Search Tools

Text & Encoding

Encoders, decoders, ciphers, hashing, counters and text converters.

Numbers & Math

Unit converters, base converters, calculators, and math utilities.

Media & Files

Image, audio, video tools and file inspection utilities.

Electronics

Ohm's law, resistor codes, LED calculators, and circuit tools.

Color & Design

A universal color converter, pickers, palette generators, contrast checkers, and gradient builders.

Web & Dev

JSON/XML formatters, URL tools, regex testers, and HTTP utilities.

Code Lab

Learn to program from zero to advanced — pick a language and your level, then step through code, run it live, and work through guided lessons.

Finance

Loan calculators, interest tools, currency converters, and tax estimators.

Time & Date

Date, age and work-day calculators, time zones and world clocks, Unix timestamps, hours worked, and timers.

Science & Engineering

Physics, chemistry, material properties, and engineering calculators.

Automotive

Torque, horsepower, fuel economy, tire sizing, exhaust flow, intake, injector, and turbo sizing tools.

Aviation

Weight and balance, fuel burn, airspeed, and flight calculators.

Construction

Concrete, gravel, brick, drywall, tile, roofing, siding and trim estimators in feet or metres, plus joist spans, beam and snow loads, stairs, drainage and map measuring.

Health & Fitness

BMI, BMR, calories, macros, body fat, and wellness tools.

Grades & Education

GPA, final grades, weighted scores, and academic performance tools.

Networking

IP geolocation, MAC address lookup, DNS, subnet, and other browser-native network tools.

Number Systems

42 integer-base + numeral-system converters: decimal / binary / octal / hex / Roman / English words / scientific notation.

Welding

Welding amperage charts, tungsten electrode selection, shielding gas mixtures, filler rod cross-reference, and weld symbol guides.