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 인코더/디코더
텍스트를 Base64로 인코딩, Base64 디코딩
URL 인코더/디코더
URL 구성요소와 쿼리 매개변수 인코딩/디코딩
해시 생성기
텍스트에서 MD5, SHA-1, SHA-256, SHA-512 해시 생성
멀티 해시 생성기
텍스트 또는 파일에서 MD5, SHA-1, SHA-256, SHA-384, SHA-512 해시를 동시 생성
JWT 디코더
JSON Web Token 디코딩 및 헤더, 페이로드, 서명 확인
HTML 엔티티 인코더
HTML 엔티티 및 특수 문자 인코딩/디코딩
이미지 Base64 변환
이미지를 Base64 문자열과 data URI로 변환. 드래그 앤 드롭
Escape / Unescape
HTML, JavaScript, JSON 이스케이프/언이스케이프
PEM / 인증서 디코더
PEM 인증서 디코딩
Bcrypt Hash 생성
비용 조절 가능한 bcrypt 해시 생성
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 이미지 변환기
이미지를 Base64 문자열로 변환하거나 Base64를 이미지로 변환
JWT 디코더 온라인
JWT 토큰을 무료로 온라인 디코딩
HTML 엔티티 인코더/디코더
명명된 엔티티와 숫자 엔티티를 지원하는 HTML 엔티티 인코딩/디코딩
이미지를 Base64로 인코더
이미지를 Base64 문자열과 Data URI로 변환, 드래그 앤 드롭 지원
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 디코더
SAML 응답 및 요청 디코딩 및 검사
Protobuf 디코더
Protocol Buffers 바이너리 데이터 디코딩
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.