Base64 Encoder
Encode text to Base64 with full UTF-8 support (emoji and accents included), with an optional URL-safe Base64URL variant.
This tool runs entirely in your browser.
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How to use the Base64 Encoder
- 1Type or paste text.
- 2Optionally enable URL-safe mode.
- 3Copy the Base64 output.
What is the Base64 Encoder?
Base64 represents binary data using 64 printable characters. It is an encoding, not encryption — anyone can decode it.
Frequently asked questions
What is Base64URL?
A variant that replaces + and / with - and _ and drops = padding so the result can be used in URLs and JWTs.
Is the Base64 Encoder free and private?
Yes. The Base64 Encoder is free, needs no account, and runs entirely in your browser. What you type is never sent to a server or stored.