Base64
Encode and decode Base64 text online for free in your browser—no backend or external calls.
The result will appear here.
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How to encode and decode Base64
- Choose the Encode or Decode tab depending on what you need.
- Paste plain text or the Base64 string in the corresponding field.
- Copy the result shown instantly in the output panel.
What is it for?
Base64 converts binary data or text into ASCII-safe strings for JSON, URLs, email, or HTTP headers. Developers use it when debugging APIs, JWT tokens, or webhook payloads.
Decoding Base64 lets you inspect content embedded in service responses, configs, or logs without writing terminal scripts.
This Base64 tool runs in the browser with no backend—ideal for quick tests where you do not want to upload sensitive data to third-party services.
Frequently asked questions
Is Base64 encryption?
No. Base64 only encodes data for transport; anyone can decode it. Do not use Base64 to protect secrets.
Why does Base64 decoding fail?
Usually invalid characters, wrong padding (=), or extra spaces/newlines. Verify the string is complete and well formed.
Can I encode files with this tool?
It is text-oriented. For large binary files use dedicated tools or libraries in your development environment.
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