Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text, instantly and with full Unicode support.
Your privacy is safe, this tool runs entirely in your browser. Nothing you enter is uploaded to or stored on our servers.
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How to use Base64 Encoder / Decoder
- 1Paste your text or Base64 string into the box.
- 2Click “Encode” to convert text to Base64, or “Decode” to convert Base64 back to text.
- 3The result appears below.
- 4Copy the output with one click.
About the Base64 Encoder / Decoder
This free Base64 encoder and decoder converts plain text into Base64 and back again. Base64 is widely used by developers to embed images in CSS or HTML, transmit data in JSON and URLs, and store binary data as text.
Unlike many converters, this tool is fully Unicode-safe, so emojis and characters from any language convert correctly. All processing happens in your browser for complete privacy.
Frequently asked questions
How do I encode text to Base64?
Paste your text into the box and click “Encode”. The Base64 string appears below, ready to copy with one click.
How do I decode a Base64 string?
Paste the Base64 string and click “Decode”. The original text is returned instantly, even for Unicode characters and emojis.
What is Base64?
Base64 is a way of encoding binary or text data into a plain ASCII string. It is commonly used to embed images in CSS/HTML, send data in URLs, and store text safely.
Is Base64 the same as encryption?
No. Base64 is encoding, not encryption, it is fully reversible and provides no security. Never use it to protect passwords or secrets.
Does it support emojis and other languages?
Yes. The tool is fully Unicode-aware, so emojis and non-English characters encode and decode correctly.
Is my data uploaded anywhere?
No. Encoding and decoding happen entirely in your browser, so your data stays private. It is free with no limits or sign-up.