Free Online Encode & Decode — No Sign-Up Required
Convert data between formats instantly — Base64, URL encoding, HTML entities, and more.
5free tools — all processed locally in your browser
Base64 Encoder / Decoder
Encode and decode Base64 strings instantly.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text.
HTML Entity Encoder
Encode special characters to HTML entities and decode them back.
JSON Formatter
Format, validate, minify, and visualize JSON as an interactive tree.
URL Encoder / Decoder
Encode and decode URL components safely.
About Our Encode & Decode
Our free encode and decode tools let you convert data between formats instantly. Whether you need to Base64-encode a string for a data URI, URL-encode a query parameter, decode an HTML entity, or work with hex and binary representations, every tool runs entirely in your browser. No data is ever uploaded to a server — your strings, files, and secrets stay private.