Utilities Bunker — explore 1,865 tools across 21 categories.

01 / 21

Text & Encoding

Encoders, decoders, hashing, formatters, and string tools.

14 tools Browse all →
02 / 21

Numbers & Math

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

130 tools Browse all →
03 / 21

Media & Files

Image, audio, video tools and file inspection utilities.

99 tools Browse all →
04 / 21

Image Converters

Convert between hundreds of image formats — client-side, no upload.

759 tools Browse all →
05 / 21

Electronics

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

208 tools Browse all →
06 / 21

Color & Design

Color pickers, palette generators, contrast checkers, and gradient builders.

21 tools Browse all →
07 / 21

Web & Dev

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

23 tools Browse all →
08 / 21

Finance

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

79 tools Browse all →
09 / 21

Time & Date

Timezone converters, date calculators, countdowns, and timestamp tools.

8 tools Browse all →
10 / 21

Science & Engineering

Physics, chemistry, material properties, and engineering calculators.

8 tools Browse all →
11 / 21

Automotive

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

39 tools Browse all →
12 / 21

Aviation

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

8 tools Browse all →
13 / 21

Construction

Material estimators, load calculators, roof pitch, and area tools.

33 tools Browse all →
14 / 21

Health & Fitness

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

32 tools Browse all →
15 / 21

Grades & Education

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

8 tools Browse all →
16 / 21

Reference

Charts, tables, specs, and educational reference pages.

218 tools Browse all →
17 / 21

Networking

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

11 tools Browse all →
18 / 21

Color Converters

90 browser-based colour-space converters - HEX / RGB / HSL / HSV / CMYK / LAB / LCH / XYZ / OKLab / OKLCH. With a click-to-pick colour swatch.

90 tools Browse all →
19 / 21

Text Codecs

30 browser-based text encoders, decoders, and ciphers - Base32 / 58 / 85, hex, binary, octal, URL, HTML, Atbash, Caesar, Morse, Braille, A1Z26, NATO, Pig Latin, leet, upside-down, Unicode escape.

30 tools Browse all →
20 / 21

Number Systems

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

42 tools Browse all →
21 / 21

Welding

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

5 tools Browse all →

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Browse by Category

Text & Encoding
Encoders, decoders, hashing, formatters, and string tools.
Numbers & Math
Unit converters, base converters, calculators, and math utilities.
Media & Files
Image, audio, video tools and file inspection utilities.
Image Converters
Convert between hundreds of image formats — client-side, no upload.
Electronics
Ohm's law, resistor codes, LED calculators, and circuit tools.
Color & Design
Color pickers, palette generators, contrast checkers, and gradient builders.
Web & Dev
JSON/XML formatters, URL tools, regex testers, and HTTP utilities.
Finance
Loan calculators, interest tools, currency converters, and tax estimators.
Time & Date
Timezone converters, date calculators, countdowns, and timestamp tools.
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
Material estimators, load calculators, roof pitch, and area tools.
Health & Fitness
BMI, BMR, calories, macros, body fat, and wellness tools.
Grades & Education
GPA, final grades, weighted scores, and academic performance tools.
Reference
Charts, tables, specs, and educational reference pages.
Networking
IP geolocation, MAC address lookup, DNS, subnet, and other browser-native network tools.
Color Converters
90 browser-based colour-space converters - HEX / RGB / HSL / HSV / CMYK / LAB / LCH / XYZ / OKLab / OKLCH. With a click-to-pick colour swatch.
Text Codecs
30 browser-based text encoders, decoders, and ciphers - Base32 / 58 / 85, hex, binary, octal, URL, HTML, Atbash, Caesar, Morse, Braille, A1Z26, NATO, Pig Latin, leet, upside-down, Unicode escape.
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.

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