Base64 encoder / decoder
Encode and decode text to and from Base64.
- Instant
- Free
- Private (processed locally)
- No sign-up
Encode and decode Base64 in one click
Base64 turns text or data into a string made only of safe characters (A–Z, a–z, 0–9, + and /). It is essential for carrying data where only text is accepted.
How to use it
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Paste your content
Text to encode, or a Base64 string to decode.
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Choose the direction
Click “Encode” or “Decode”.
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Copy the result
The output is ready to reuse.
Reminder: Base64 is not a way to secure data, only to represent it as text.
Frequently asked questions
What is Base64?
Base64 is an encoding that represents binary data as ASCII text. It is widely used to embed images in HTML/CSS, or to transmit data in URLs and emails.
Is Base64 encryption?
No. Base64 is not secure: it is a simple encoding that anyone can reverse. Never use it to protect confidential information.
Does it handle accents and emojis?
Yes. The tool encodes text as UTF-8 before conversion, so accented characters and emojis are correctly handled both ways.
Is my data sent online?
No. Encoding and decoding happen entirely in your browser; nothing is sent to a server.