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Base64 Encoder / Decoder
Encode plain text or decode Base64 strings instantly without sending data to a server. Runs entirely in your browser for secure, offline processing.
Output appears here
Encoded your string? Generate a secure hash of it, or format some JSON.Hash Generator
What is Base64?
Base64 is an encoding scheme that converts binary data to ASCII text. It is commonly used in JWTs, data URIs for embedding images in HTML/CSS, email attachments and API authentication headers.
URL-safe Base64
Standard Base64 uses + and / characters which are not safe in URLs. URL-safe Base64 replaces + with - and / with _ and removes padding = characters. Use this for JWT tokens and URL parameters.