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Encode / Decode Hub

Convert between Base64, URL encoding, HTML entities, Hex, and Unicode escapes.

Input

Output

Base64 encodes binary data as ASCII text using A-Z, a-z, 0-9, +, and /. Common for embedding images, data URIs, and HTTP auth headers. This tool handles UTF-8 correctly.

URL Encoding (percent-encoding) replaces unsafe characters with %XX hex codes. Used in query strings, form data, and URIs. Uses encodeURIComponent/decodeURIComponent.

HTML Entities encode special characters like <, >, &, ", and ' to prevent XSS and rendering issues.

Unicode Escape converts characters to \uXXXX sequences. Used in JSON, JavaScript strings, and internationalization work.