Development and data formats

Base64 encode and decode online

Encode and decode Base64 text with full UTF-8 support (accents, emojis), URL-safe variant, and file or image to Base64 conversion.

Everything runs in your browser. Nothing is sent to our servers.

How it works

Type or paste text to convert it to Base64, or paste Base64 to see the original text. The tool uses UTF-8, so accented characters and emojis are encoded correctly.

The URL-safe option replaces + and / with - and _ and removes = padding, the format used by JWTs and many URL parameters. You can also pick a file or image to get its Base64 or a data URI ready to use in CSS or HTML.

Frequently asked questions

Is Base64 encryption?

No. Base64 is an encoding that anyone can reverse. It is used to carry binary data as text, not to protect it.

Why is Base64 larger than the original?

Base64 represents every 3 bytes with 4 characters, so the output is about 33% larger.

Need a custom tool for your business?

Tell us about your case and in 30 minutes we'll give you a clear diagnosis: what's going on, what to do first and what it might cost. No strings attached.

Get a free assessment Message us on WhatsApp

Reply within 24 business hours