Base64 Encoder & Decoder - Text and Files
Encode and decode Base64 strings
How to Use Base64 Encode/Decode
Encode and decode Base64 strings No signup, and nothing gets uploaded for most use.
- 1
Paste your text in the input box.
- 2
Choose Encode or Decode depending on what you need.
- 3
The result appears instantly below the input.
- 4
Copy the output, or swap the input/output with one click.
Why you might like it
- Nothing to upload — the work happens on your device.
- Free with no signup, no watermarks, and no daily limits.
- Works in any modern browser on any device — nothing to install.
- Usually done in a few seconds, so it doesn't get in your way.
Frequently Asked Questions
What is Base64 encoding?▾
Base64 encodes binary data into a safe ASCII string, commonly used to embed images or data inline in HTML and JSON.
Does the Base64 tool handle images?▾
Yes — you can encode files to a data URI and decode data URIs back to files.
Is encoding done locally?▾
Yes, everything runs in your browser.
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