Encoding Tools

Encode and decode text or binary data using Base32 (RFC 4648 standard, Base32hex, or Crockford variant). Copy output with one click. Runs entirely in your browser.

Encode text or files to Base64 online: standard, URL-safe, and Base64url variants. Decode back to text or download as a file. All processing is local.

Convert any UTF-8 text to binary (8-bit groups) or decode binary back to text. Choose your separator format. Free, instant, browser-only.

Encode special characters to HTML entities and decode them back. Supports named (&), decimal (&), and hex (&) styles. Runs entirely in your browser.

Encode Unicode / internationalized domain names (IDN) to Punycode (xn--) and decode them back. Implements RFC 3492 entirely in the browser.

Generate QR codes for URLs, text, Wi-Fi, vCards, email, SMS, phone, geo, crypto, and calendar events. Customize colors, size, and error correction. Download as PNG or SVG.

Encode text to Quoted-Printable (QP) or decode QP back to plain text. Implements RFC 2045 Section 6.7 with proper 76-char line wrapping.

Encode and decode URLs online: encodeURIComponent for query values, encodeURI for full URLs, or percent-decode any encoded string. All processing is local.

Encode and decode text using URL-safe Base64 (Base64url, RFC 4648 §5). Handles + to -, / to _, optional padding. Also decodes JWT headers and payloads, fully offline.

Encode text or data to UU format and decode UU-encoded content back to plain text. Classic Unix uuencoding implemented entirely in your browser.