Number Base Converter
Convert numbers between decimal, hexadecimal, octal, and binary instantly. Type in any base to update all others.
Base 10 — digits 0–9
Base 16 — digits 0–9 and A–F
Base 8 — digits 0–7
Base 2 — digits 0 and 1
Related Tools
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes instantly.
JSON Formatter
Format, validate, and minify JSON data instantly.
Unix Timestamp
Convert Unix timestamps to human-readable dates and back.
UUID Generator
Generate UUID v4 values instantly, with bulk generation and validation.
Base64 Encoder
Encode and decode strings using Base64 encoding.
URL Encoder
Encode and decode URLs with percent-encoding instantly.
JWT Decoder
Decode and inspect JSON Web Tokens securely in your browser.
Regex Tester
Test and debug regular expressions with live match highlighting.
SQL Formatter
Format and minify SQL with dialect support for MySQL, PostgreSQL, and more.
BigInt precision: Conversion uses JavaScript's native BigInt type, so there's no loss of precision for integers beyond 64-bit. Binary output is grouped into nibbles (4-bit blocks) for readability.
Only non-negative integers are supported. All conversion happens locally in your browser.