How to Use Base64 Encode/Decode
This guide walks you through using Base64 Encode/Decode effectively. Encode or decode Base64 text instantly in your browser. All processing happens in your browser — your data never leaves your device.
How to Use Base64 Encode/Decode
01Choose mode
Select Encode to convert text to Base64 or Decode to convert Base64 back to text.
02Enter your data
Type or paste your text into the input area.
03Convert and copy
Click Encode or Decode, then copy the result to your clipboard.
04Encoding binary data for inclusion in JSON or XML payloads
Encoding binary data for inclusion in JSON or XML payloads
05Decoding Base64-encoded API tokens and authentication headers
Decoding Base64-encoded API tokens and authentication headers
06Embedding small images as Base64 data URIs in HTML or CSS
Embedding small images as Base64 data URIs in HTML or CSS
Frequently Asked Questions
Is Base64 Encode/Decode free to use?
Yes, Base64 Encode/Decode is completely free with no sign-up required, no usage limits, and no hidden fees.
Does Base64 Encode/Decode upload my data?
No. All processing happens locally in your browser. Your data never leaves your computer.
Try the Tool
Base64 Encode/Decode
Encode or decode Base64 text instantly in your browser.
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Best Practices for Base64 Encode/Decode
Follow these best practices to get the most out of Base64 Encode/Decode. Encode or decode Base64 text instantly in your browser. These tips will help you work more efficiently and avoid common pitfalls.
Common Mistakes in Base64 Encode/Decode
Learn about common mistakes when using Base64 Encode/Decode and how to avoid them. Encode or decode Base64 text instantly in your browser. Understanding these pitfalls will help you use the tool more effectively.