Base64 Encoder & Decoder
Convert plain text to Base64 and decode Base64 text back into readable UTF-8. Supports Unicode characters.
Base64 is an encoding, not encryption. Do not use it to protect secrets. Text is processed in this browser and is not saved.
🔒 All processing happens in your browser — files never leave your device. Your input stays in this browser and is not uploaded to Smart Online Tools.
How it works
- Choose Encode text or Decode Base64.
- Paste or type the text, then select Encode or Decode.
- Copy the result.
Good to know: Base64 is an encoding format, not encryption. Do not use it to hide passwords, keys, or other secrets. Text is processed in this browser and is not saved.
Privacy and processing
Your input stays in this browser and is not uploaded to Smart Online Tools.
Frequently asked questions
What does Base64 Encoder & Decoder do?
Encode text to Base64 or decode Base64 back to UTF-8 text. Convert plain text to Base64 and decode Base64 text back into readable UTF-8. Supports Unicode characters.
Does this tool upload my files or input?
Your input stays in this browser and is not uploaded to Smart Online Tools.
What should I know before using this tool?
Base64 is an encoding format, not encryption. Do not use it to hide passwords, keys, or other secrets. Text is processed in this browser and is not saved.