In short: Base64 Encode / Decode converts text or files to Base64 and decodes Base64 back to readable text, fully in your browser.
Processed locally in your browser
Your files and text are handled entirely on your device using your browser. They are never uploaded to our servers.
Encoding and decoding run locally in your browser. Nothing is uploaded.
How to use Base64 Encode / Decode
3 quick steps. Most people are done in under a minute.
- 1
Paste text, or upload a file to encode.
- 2
Choose Encode or Decode.
- 3
Copy the result or download it.
Base64 Encode / Decode features
- Encode and decode text with full Unicode support
- Encode files as Base64 data URIs
- One-click copy
- Runs locally
When to use Base64 Encode / Decode
- Embed small images in HTML or CSS as data URIs
- Decode Base64 strings from APIs, emails or logs
- Prepare credentials for HTTP Basic authentication headers
About this tool
Encode text to Base64 or decode Base64 back to readable text. You can also encode files as Base64 data URIs. Everything stays in your browser.
Base64 Encode / Decode FAQ
What is Base64 encoding?
Base64 represents binary data using 64 printable characters so it can travel safely through text-only systems like email, JSON and URLs. It is encoding, not encryption.
Is Base64 secure?
No. Anyone can decode Base64, so never use it to protect passwords or secrets. Use encryption instead.
Is it safe to use this tool with private data?
Yes. Your data are processed entirely in your web browser using JavaScript on your own device. Nothing is uploaded to FaaTools servers, so we never see, store or share your data — you can even disconnect from the internet after the page loads and the tool keeps working.