Skip to content

H HowToCodePage

Home Learn Cheat sheets Tools Directory About

Encoding5

Base64 encoder / decoder URL encoder / decoder ROT13 & Caesar cipher Base32 encoder / decoder Text to hex converter

Hashing3

Hash & checksum File checksum Hash identifier

Data2

JSON formatter & validator CSV ⇄ JSON converter

Text11

Case converter Regex tester Text statistics URL slug generator Markdown preview Sort & dedupe lines Text diff Word & character frequency Pattern extractor Unicode code point inspector Find and replace

Generators4

UUID generator Password generator Lorem ipsum generator Random picker

Date & time4

Timestamp converter Date difference Time zone converter Seconds to duration converter

Numbers9

Number base converter Unit converter Percentage calculator Number formatter Numbers to English words Bitwise calculator Roman numeral converter Byte size converter Statistics calculator

Design8

Color converter Colour palette builder px - rem converter Aspect ratio calculator CSS gradient builder Box shadow builder CSS clamp() generator Colour contrast checker

Security3

JWT decoder AES encrypt / decrypt TOTP code generator

Code3

CSS & HTML minifier JSON to TypeScript String escape / unescape

Web11

Query string parser HTML entity encoder Keyboard event inspector URL parser HTTP status codes MIME type lookup Meta tag generator robots.txt generator IPv4 subnet calculator Content-Security-Policy builder User-Agent parser

DevOps2

Cron expression explainer chmod calculator

Image5

Image resizer Image format converter Favicon generator Placeholder image generator Image colour extractor

Converters11

YAML to JSON converter XML to JSON converter CSV to Markdown table HTML table to JSON SQL formatter dotenv file checker INI to JSON converter JSONPath query tester Data URI encoder CSV to SQL INSERT HTML table generator

GitHub5

.gitignore generator Licence picker GitHub Actions cron helper Semantic version checker Conventional commit builder

Home/Tools/Number base converter

Number base converter

Convert between binary, octal, decimal and hexadecimal, with bit length and byte view.

Value

Result

Learn to code, one page at a time.

Courses

.NET ASP.NET Core Accessibility Algorithms Android All 111 courses

Tools

Base64 encoder / decoder JSON formatter & validator Hash & checksum UUID generator Timestamp converter Color converter All 86 tools

Tracks

Front-end Development AI & Intelligent Development Python & Data Science Back-end Development Computer Science Fundamentals Every track

Site

About FAQ Changelog Privacy

© 2026 HowToCodePage. Reference content for learning; not official documentation.Built static · deployed on Cloudflare Pages.