Base64 Encode

Binary data cannot travel cleanly through plain JSON or many email systems. Base64 maps bytes to a restricted ASCII alphabet so the result can be embedded in text formats without control characters breaking parsers.

Common uses include embedding small images in data URLs, wrapping binary payloads inside JSON fields, and preparing attachments for legacy transports.

Base64 is reversible by design and offers no confidentiality. Do not rely on it to protect secrets; use proper encryption and key management instead.

Encoded strings are roughly a third longer than raw binary, which matters for large blobs—compress or chunk data when your protocol allows it.

Always decode on the receiving side with strict validation when the data is untrusted, because malformed input can stress parsers or trigger security bugs in poorly written consumers.

If you encode user-supplied files, document maximum sizes and reject inputs that exceed them to keep the tab responsive.