Free Online Encoder & Decoder Tools
Encode and decode data online: Base64, URL encoding, HTML entities, hashing (MD5, SHA-256), JWT, and more.
57 tools available
Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 back to text
URL Encoder/Decoder
Encode or decode URL components and query parameters
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text
Multi-Hash-generator
Generera MD5, SHA-1, SHA-256, SHA-384, SHA-512 hash samtidigt
JWT Decoder
Decode and inspect JSON Web Tokens (header, payload, signature)
HTML Entity Encoder
Encode and decode HTML entities and special characters
Image Base64 Converter
Convert images to Base64 strings and data URIs with drag & drop
Escape / Unescape
Escape eller unescape HTML, JavaScript och JSON
PEM / certifikatdekoder
Dekoda PEM-certifikat
Bcrypt-hashgenerator
Generera bcrypt-lösenordshashar
ASCII Text Converter
Convert between ASCII codes and text characters with reference table
Md5 Hash Generator
Md5 Hash Generator - Free online tool for Hash generation (MD5, SHA). Fast, secure, and easy to use.
Sha256 Hash Generator
Sha256 Hash Generator - Free online tool for Hash generation (MD5, SHA). Fast, secure, and easy to use.
Sha1 Hash Generator
Sha1 Hash Generator - Free online tool for Hash generation (MD5, SHA). Fast, secure, and easy to use.
Sha512 Hash Generator
Sha512 Hash Generator - Free online tool for Hash generation (MD5, SHA). Fast, secure, and easy to use.
Base64 Encoder
Encode text to Base64 format
Base64 Decoder
Fast Base64 decoder for text and binary data
String To Base64
String To Base64 - Free online tool for Base64 encoding and decoding. Fast, secure, and easy to use.
Jwt Token Decoder
Jwt Token Decoder - Free online tool for JWT token decoding. Fast, secure, and easy to use.
Jwt Parser
Jwt Parser - Free online tool for JWT token decoding. Fast, secure, and easy to use.
Jwt Validator
Jwt Validator - Free online tool for JWT token decoding. Fast, secure, and easy to use.
Url Decoder
Url Decoder - Free online tool for URL encoding/decoding. Fast, secure, and easy to use.
Url Encode
Url Encode - Free online tool for URL encoding/decoding. Fast, secure, and easy to use.
Percent Encoding Tool
Percent Encoding Tool - Free online tool for data processing. Fast, secure, and easy to use.
Md5 Vs Sha256
Md5 Vs Sha256 - Free online tool for MD5 hashing. Fast, secure, and easy to use.
Base64 vs URL Encoding
Compare Base64 and URL encoding with side-by-side examples
Jwt Vs Session
Jwt Vs Session - Free online tool for JWT token decoding. Fast, secure, and easy to use.
Base64 Bildkonverterare
Konvertera bilder till Base64-strangar och tillbaka
JWT Decoder Online
Avkoda JWT-tokens online gratis
HTML Entitets Kodare / Avkodare
Koda och avkoda HTML entiteter med namngivna och numeriska entiteter
Bild till Base64 Kodare
Konvertera bilder till Base64 strangar och Data URIer med dra och slapp
Online Hash Generator
Online Hash Generator - Free online tool for Hash generation (MD5, SHA). Fast, secure, and easy to use.
Base64 Decoder Online
Free online Base64 decoder with instant results
Base64 to Image
Convert Base64 image strings to viewable and downloadable images
Text To Binary
Text To Binary - Free online tool for Text processing. Fast, secure, and easy to use.
Base64 Encode Online
Free online Base64 encoder for text and files
Url Shortener Tool
Url Shortener Tool - Free online tool for URL encoding/decoding. Fast, secure, and easy to use.
Base64 Image Decoder
Convert Base64 image data back to image files
Jwt Debugger
Jwt Debugger - Free online tool for JWT token decoding. Fast, secure, and easy to use.
String Hash Generator
String Hash Generator - Free online tool for Hash generation (MD5, SHA). Fast, secure, and easy to use.
JWT Generator
Generate JWT tokens
Base64 Decode
Decode Base64 encoded text back to plain text
Base64 Encoder/Decoder
Encode and decode Base64 in one tool with bidirectional conversion
Url Encode Decode
Url Encode Decode - Free online tool for URL encoding/decoding. Fast, secure, and easy to use.
Base64 Image Encoder
Convert images to Base64 and Base64 to images
Html Encoder
Html Encoder - Free online tool for HTML processing. Fast, secure, and easy to use.
Sha256 Hash
Sha256 Hash - Free online tool for Hash generation (MD5, SHA). Fast, secure, and easy to use.
Url Encoder
Url Encoder - Free online tool for URL encoding/decoding. Fast, secure, and easy to use.
SAML-avkodare
Avkoda och inspektera SAML-svar och -förfrågningar
Protobuf-avkodare
Avkoda Protocol Buffers binärdata
Certutil Base64 Decoder
Decode certutil Base64 encoded strings and certificates online. Convert Base64 from environment variables, certificates, and command-line output.
Base32 Encoder/Decoder
Encode/decode Base32 strings
Binary to Text
Convert between binary and text
Text to Morse Code
Convert text to Morse code and back
Base58 Encoder/Decoder
Encode and decode Base58 strings
SVG to CSS Converter
Convert SVG to CSS background-image data URI
HTML Entity Decoder
Encode/decode HTML entities
About Free Online Encoder & Decoder Tools
DevToolBox provides a collection of free online developer tools to help you efficiently complete everyday development tasks. This category includes 57 tools, all running directly in your browser with no installation required. Your data stays on your device and is never sent to our servers, ensuring complete privacy.
All tools are completely free with no registration or login required. Available in 15 languages for developers worldwide.