Base64 Encode / Decode

Encode text to a Base64 string or decode a Base64 string back to plain text. Commonly used in data transfer, JWTs, and email attachments.

Input

Encode — Converts plain text → Base64 (e.g. Hello → SGVsbG8=)
Decode — Converts Base64 → plain text (reverse of the above)
Base64 output uses the characters A–Z, a–z, 0–9, +, / and = padding.