encodeB64

What it does

Free online Base64 encoder — runs entirely in your browser. No data sent to any server. Supports UTF-8 (correct handling), Base64URL (RFC 4648) for JWT tokens, MIME line splitting, per-line encoding, file encoding up to 100MB, and an Image to Base64 converter for JPG, PNG, GIF, WebP, SVG, BMP, ICO, TIFF and AVIF. Live mode, 12 languages. No sign-up. No ads. No file size limits.

Free online Base64 encoder for text, files, and images. UTF-8 perfect, Base64URL safe, up to 100MB, no server upload, 100% private.

Encode text, files, and images to Base64 instantly — UTF-8 perfect, Base64URL safe, up to 100MB, and 100% private in your browser. Base64 is a binary-to-text encoding scheme that represents binary data using 64 printable ASCII characters: A–Z, a–z, 0–9, plus (+) and slash (/), with equals (=) used for padding. The name "Base64" comes from the fact that each Base64 digit represents exactly 6 bits of data, and 2^6 = 64. Base64 is not encryption — it is a reversible encoding designed to safely transmit binary data over channels that only support text, such as email (MIME), JSON payloads, XML documents, and HTTP headers. Anyone can decode a Base64 string without a key or password. Common use…from encodeb64.com

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