Encoding Tools

Encode and decode data instantly: Base64, URL, HTML entities, Hex, ROT, JWT and more—all in your browser for speed and privacy.

33 tools available

Conversion 22

ASCII Hex Binary Dec Converter

Convert between ASCII text, hexadecimal, binary, decimal, and Base64 encoding. Free online number system converter with delimiter and prefix options.

Conversion › Number Conversion
ASCII to Binary

Convert text to binary strings using various character encodings. Free online ASCII to binary converter with file support and customizable delimiters.

Conversion › Number Conversion
ASCII to Hex

Convert text to hexadecimal strings using various character encodings. Free online ASCII to hex converter with file support and customizable delimiters.

Conversion › Number Conversion
Base Converter

Convert numbers between different number bases (2-36). Free online base converter supporting binary, octal, decimal, hexadecimal and any base up to 36.

Conversion › Number Conversion
Binary Converter

Convert binary numbers to decimal, hexadecimal, octal, and ASCII text. Free online binary converter with instant results.

Conversion › Number Conversion
Binary to ASCII Converter

Convert binary strings to ASCII, UTF-8, and other character encodings. Free online binary to text converter with file support.

Conversion › Number Conversion
Binary to Decimal

Convert binary numbers (base-2) to decimal numbers (base-10) instantly. Free online binary to decimal converter with step-by-step conversion process.

Conversion › Number Conversion
Binary to Hex

Convert binary numbers to hexadecimal and decimal. Free online binary to hex converter with step-by-step calculations and digit grouping support.

Conversion › Number Conversion
Binary to Octal

Convert binary numbers (base-2) to octal numbers (base-8) instantly. Free online binary to octal converter with step-by-step conversion process.

Conversion › Number Conversion
Binary to String

Convert binary strings to text using various character encodings. Free online binary to string converter with file support and multiple encoding options.

Conversion › Number Conversion
Decimal to Binary

Convert decimal numbers (base-10) to binary numbers (base-2) instantly. Free online decimal to binary converter with conversion steps.

Conversion › Number Conversion
Decimal to Hex

Convert decimal numbers to hexadecimal with step-by-step calculation. Simple and accurate decimal to hex conversion tool.

Conversion › Number Conversion
Decimal to Octal

Convert decimal numbers to octal and hexadecimal with step-by-step calculation. Simple and accurate decimal to octal conversion tool.

Conversion › Number Conversion
Decimal to Percent

Convert decimal numbers to percentage with step-by-step calculation. Simple and accurate decimal to percent conversion tool.

Conversion › Number Conversion
Hex Dec Bin Converter

Convert between hexadecimal, decimal, binary, and octal numbers instantly. Interactive bit toggle interface with support for signed numbers and different bit widths.

Conversion › Number Conversion
Hex to ASCII

Convert hexadecimal strings to text using various character encodings. Free online hex to ASCII converter with file support and multiple encoding options.

Conversion › Number Conversion
Hex to Binary

Convert hexadecimal numbers to binary numbers instantly. Free online hex to binary converter with step-by-step conversion process and digit grouping.

Conversion › Number Conversion
Hex to Decimal

Convert hexadecimal numbers to decimal with step-by-step calculation. Supports signed and unsigned decimal conversion with binary representation.

Conversion › Number Conversion
Hex to Octal

Convert hexadecimal numbers to octal with step-by-step calculation. Supports both octal and decimal output with detailed conversion steps.

Conversion › Number Conversion
Octal to Binary

Convert octal numbers to binary with step-by-step calculation. Simple and accurate octal to binary conversion tool.

Conversion › Number Conversion
Octal to Decimal

Convert octal numbers to decimal with step-by-step calculation. Simple and accurate octal to decimal conversion tool.

Conversion › Number Conversion
Octal to Hex

Convert octal numbers to hexadecimal with step-by-step calculation. Simple and accurate octal to hex conversion tool.

Conversion › Number Conversion

Developer Tools 11

Base32 Encoder/Decoder

Free online Base32 encoder and decoder tool. Encode text to Base32 or decode Base32 to text instantly. Supports RFC 4648 standard Base32 encoding with optional padding. Perfect for developers working with data encoding, QR codes, and case-insensitive encoding systems.

Developer Tools › Encoding
Base58 Encoder/Decoder

Free online Base58 encoder and decoder tool. Encode text to Base58 or decode Base58 to text instantly. Uses Bitcoin alphabet without confusing characters (0, O, I, l). Perfect for developers working with cryptocurrencies, blockchain, Bitcoin addresses, and human-readable encoding.

Developer Tools › Encoding
Base64 Encoder/Decoder

Free online Base64 encoder and decoder tool. Encode text to Base64 or decode Base64 to text instantly. Supports UTF-8, ASCII, URL-safe encoding and multiple character sets. Perfect for developers working with APIs, data encoding, and web development.

Developer Tools › Encoding
Base85 Encoder/Decoder

Free online Base85 (Ascii85) encoder and decoder tool. Encode text to Base85 or decode Base85 to text instantly. More efficient than Base64 with 25% better compression. Perfect for developers working with PDF encoding, binary data compression, email attachments, and space-efficient encoding.

Developer Tools › Encoding
HMAC Generator

Free online HMAC generator and HMAC encrypt tool. Generate HMAC (Hash-based Message Authentication Code) with SHA-256, SHA-512, or SHA-1. Create secure message authentication codes for API security, JWT signing, and data integrity verification. Supports hex and base64 output formats.

Developer Tools › Encoding
HTML Entities Encoder/Decoder

Free online HTML entities encoder and decoder tool. Convert special characters to HTML entities (<, >, &, ") or decode entities back to text. Supports named, numeric, and hexadecimal entities. Perfect for web developers, preventing XSS attacks, and displaying HTML code safely.

Developer Tools › Encoding
Hex Encoder/Decoder

Free online Hexadecimal (Hex) encoder and decoder tool. Convert text to hex or decode hex to text instantly. Supports multiple hex formats: plain, 0x prefix, space-separated. Perfect for developers working with binary data, debugging, color codes, and low-level programming.

Developer Tools › Encoding
Image Base64 Encoder/Decoder

Free online Image Base64 encoder and decoder. Convert images to Base64 strings or decode Base64 to images instantly. Supports JPG, PNG, GIF, WebP, BMP, SVG. Generate data URLs for HTML, CSS, JSON. 100% client-side processing.

Developer Tools › Encoding
JWT Encoder/Decoder

Free online JWT (JSON Web Token) encoder and decoder tool. Create JWT tokens or decode and analyze existing tokens instantly. View header, payload, signature, and claims information. Supports HMAC algorithms (HS256, HS384, HS512). Perfect for developers working with authentication, OAuth, and API security.

Developer Tools › Encoding
ROT Encoder/Decoder

Free online ROT encoder and decoder tool with support for ROT-0 to ROT-25. Encode and decode text using ROT-13 cipher (Caesar cipher). Simple letter substitution cipher for basic text obfuscation. Perfect for puzzles, CTF challenges, and learning cryptography basics.

Developer Tools › Encoding
URL Encoder/Decoder

Free online URL encoder and decoder tool. Encode text for URLs or decode URL-encoded strings instantly. Convert special characters, spaces, and Unicode to percent-encoded format. Perfect for web developers working with query parameters, API endpoints, and URL handling.

Developer Tools › Encoding