Base64 Converter
Encode and decode text to and from Base64 format.
What is this Tool?
Base64 Converter is a developer tool that lets you encode strings into Base64 format or decode Base64 back into plain text. It supports UTF-8 encoding, ensuring that special characters, emojis, and non-Latin scripts (like Korean, Japanese, Chinese) are processed correctly without corruption.
Base64 is strictly a robust way to represent binary data as ASCII characters. It is commonly used in email headers, storing complex data in JSON/XML, or embedding small images directly into HTML/CSS. Note that Base64 is encoding, not encryption—it does not provide security.
How to use
- Choose Mode: Click the tab for Encode(Text → Base64) or Decode (Base64 → Text).
- Input Data: Type or paste your string into the top box. The conversion happens instantly in real-time.
- Copy Result: Your converted string appears in the bottom box. Click the Copy button to save it to your clipboard.
- Clear: Use the Clear button to reset both fields and start over.
Why do you need it?
- UTF-8 Compatible: Many simple converters fail with non-ASCII characters. Ours creates URL-safe and UTF-8 safe output using advanced encoding techniques.
- Privacy Centric: Everything runs in your browser. Your sensitive API keys, tokens, or personal data are never sent to our backend.
- Developer Ready: Useful for debugging JWT payloads, Basic Auth headers, or decoding data blobs from API responses.
FAQ
Q. Why does the output end with '='?
The '=' characters are padding used to ensure the Base64 string length is a multiple of 4. They are essential for correct decoding.
Q. Is this safe for passwords?
No. Base64 is NOT encryption. Anyone can decode it. Never use Base64 to hide passwords or sensitive secrets relying on it for security.
Q. Can I convert images here?
This tool is optimized for text strings. For images, use a dedicated 'Image to Base64' tool to handle the binary data properly.