Base64 Converter

This two-way Base64 converter encodes and decodes on the same page. Type or paste plain text into the left box and press Encode, or paste a Base64 string into the right box and press Decode. With Convert as I type switched on, results appear instantly.

How to use the Base64 Converter tool

  1. Enter text in the Text field, or a Base64 value in the Base64 field.
  2. Click Encode text to Base64 or Decode Base64 to text.
  3. Use copy, download or clear above each field.

More specialised Base64 converters

This converter uses the standard Base64 alphabet (RFC 4648) and UTF-8. If you need other variants such as MIME line breaks, Base64URL, or different character encodings, or you want to convert files, images and media, use the dedicated encoders and decoders listed below.

Base64 converter, translator or encoder?

People search for a "Base64 translator", "Base64 encoder/decoder" or "Base64 converter", but they all mean the same tool. Technically, turning data into Base64 is encoding and the reverse is decoding. Base64 is not encryption: anyone can decode it, so never use it to protect passwords or secrets.

All Base64 encoders

All Base64 decoders

Frequently asked questions

What is a Base64 converter?

A Base64 converter transforms binary data or text into a string made only of 64 safe ASCII characters (A–Z, a–z, 0–9, + and /) and back. It is used to send data through text-only channels like JSON, XML, e-mail and URLs.

Is this Base64 converter free and private?

Yes. It is completely free and runs in your browser, so your text is never sent to a server.

Why does the decoded text look garbled?

The data may not be text (for example an image or PDF), or it may use a different character set. Try the Base64 decoder with automatic charset detection, or the Base64 to file decoder.

Is Base64 encryption?

No. Base64 is a reversible encoding with no key. Anyone can decode it instantly, so it provides no security.

Related tools and guides

Comments (0)

Questions, ideas or a bug in “Base64 Converter”? Leave a comment, rate the tool, or reply to others.

No comments yet. Be the first to share your feedback!

Leave a comment

Rate this tool:
Esc
↑ ↓ move↵ openEsc close