Base64 Encode / Decode
Encode text to Base64 or decode Base64 strings instantly in your browser.
All processing happens in your browser. Your data never leaves your device.Features
- Encode any text string to Base64 format
- Decode Base64 strings back to plain text
- Full UTF-8 support for international characters and emoji
- Real-time encoding and decoding as you type
- Zero external dependencies — uses browser's built-in APIs
How to Use the Base64 Encoder/Decoder
- 1Select the "Encode" or "Decode" tab based on your needs
- 2Paste or type your text in the input area
- 3The result appears instantly in the output area
- 4Click "Copy" 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 using 64 ASCII characters (A-Z, a-z, 0-9, +, /). It's commonly used to embed binary data in text-based formats like JSON, XML, HTML, and email.
Is Base64 encryption?
No. Base64 is an encoding scheme, not encryption. It does not provide any security — anyone can decode a Base64 string. Use proper encryption (like AES) if you need to protect sensitive data.
Does this support UTF-8 characters?
Yes. This tool properly handles UTF-8 text including international characters, accented letters, CJK characters, and emoji. It uses the TextEncoder/TextDecoder APIs for correct Unicode handling.