Base64 Encoder & Decoder Free
Encode and decode Base64 strings online. Free developer tool.
Files never uploadedInstant results100% freeWorks on mobile
How to Use
- 1Paste or type your text into the input field.
- 2Click Encode to convert text to Base64, or Decode to convert Base64 back to text.
- 3Click the Copy button to copy the result to your clipboard.
Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data as an ASCII string. It is commonly used to encode data for transmission over systems that handle text.
Does this support Unicode/UTF-8?
Yes. This tool properly handles Unicode and UTF-8 characters by encoding them to UTF-8 bytes before Base64 encoding.
Can I encode binary data like images?
This tool is designed for text encoding/decoding. For binary data, use the dedicated image or file conversion tools.
Is my data sent to a server?
No. All encoding and decoding happens locally in your browser using native btoa/atob functions. Your data never leaves your device.
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