Toolzie

Base64 Encode / Decoder

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How to Use the Base64 Encoder & Decoder

Paste text and click Encode for Base64, or paste Base64 and click Decode. Results appear instantly in output.

Essential for APIs, email attachments, data URLs. Quickly encode for safe transmission or decode encountered strings.

Frequently Asked Questions

What is it?

Encodes binary data to ASCII text using 64 characters for safe transmission.

Is it encryption?

No, just encoding for text-safe format. Anyone can decode it.

Files?

Text-based; use Image to Base64 for images.

Why larger?

Increases size ~33% as 3 bytes become 4 characters, but eliminates requests.

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About This Tool

The Toolzie Base64 Encoder/Decoder converts text and files to Base64 encoding and back in seconds. Base64 is widely used in web development for embedding images in CSS/HTML, encoding email attachments, and transmitting binary data as text.

How to Use

  1. Paste your text or upload a file into the input area.
  2. Choose Encode to convert to Base64, or Decode to convert back to plain text.
  3. The result appears instantly in the output field.
  4. Click Copy to copy the result to your clipboard.

Frequently Asked Questions

What is Base64 encoding used for?

Base64 is used to embed images directly in HTML/CSS, encode API credentials, and safely transmit binary data over text-based protocols.

Is Base64 a form of encryption?

No — Base64 is encoding, not encryption. Anyone can decode it. Do not use it to hide sensitive data.

Can I encode images to Base64?

Yes — upload an image file and it will be converted to a Base64 data URI you can embed directly in HTML or CSS.

Does it work for large files?

It works for moderate-sized files. Very large files may slow down your browser since processing happens locally.