Is Base64 encryption?

No. It's a reversible encoding anyone can decode in seconds.

Why does my output end with '='?

That's padding, added so the length is a multiple of four characters.

Does it work with emoji?

Yes. Text is converted to UTF-8 first, so emoji and all languages encode properly.

How much bigger is Base64?

About 33% larger than the original data.

What is URL-safe Base64?

A variant that uses - and _ instead of + and / so it can sit in a URL without escaping.

Use the Base64 Decoder tool to turn the string back into text.

Base64 Encoder

Encode text to Base64 (UTF-8 safe).

Reading time:: 2 min
Last updated:: 5 August 2026
Price:: Free, no signup

Your text

Results (live)

Type or paste text to see the result.

What the Base64 Encoder does

Encode text into Base64, the format that represents data using only letters, digits, '+' and '/'. Type 'Hello' and you get 'SGVsbG8='.

Unicode text, including emoji and Urdu or Arabic letters, is encoded correctly as UTF-8 first, so it decodes back exactly.

Why the Base64 Encoder is useful

Base64 lets you put data where only plain text is allowed — HTTP headers, JSON fields, email attachments and data URLs.

It's important to know that Base64 is not encryption. Anyone can decode it, so never use it to hide passwords or secrets.

Also known as: base64 encoder, base64 encode, free base64 encoder, online base64 encoder, base64 encoder online free, base64 encoder tool, best base64 encoder tool.

How to use the Base64 Encoder

1
Type or paste text
Any text, including non-English characters.
2
Copy the Base64 output
The encoded string updates as you type.
3
Use it where needed
In a header, config value, or data URL.

Key features

UTF-8 safe encoding
Live output
Standard Base64 alphabet with padding
Copy and download

Benefits

Safely pass text through text-only systems
Quick Basic Auth headers for testing
Correct handling of every language

Real-life use cases

API testing

A developer encodes 'user:pass' to build a Basic Authorization header for a test request.

Config values

A sysadmin encodes a multi-line certificate to paste into a single-line environment variable.

Tips for the best results

Base64 output is about a third larger than the original.
Use the URL-safe variant (- and _) when putting it in links.
Never treat Base64 as a way to protect secrets.

Conclusion

Type your text and copy the Base64 version for headers, configs or data URLs — just remember it's encoding, not encryption.

Frequently asked questions

Is Base64 encryption?: No. It's a reversible encoding anyone can decode in seconds.
Why does my output end with '='?: That's padding, added so the length is a multiple of four characters.
Does it work with emoji?: Yes. Text is converted to UTF-8 first, so emoji and all languages encode properly.
How much bigger is Base64?: About 33% larger than the original data.
What is URL-safe Base64?: A variant that uses - and _ instead of + and / so it can sit in a URL without escaping.
How do I decode it?: Use the Base64 Decoder tool to turn the string back into text.

Related tools you may need

URL Encoder — Percent-encode text for safe use in URLs.
HTML Entity Encoder/Decoder — Convert text to HTML entities and back again.
Morse Code Encoder — Convert text into international Morse code.
ROT13 Encoder — Apply the classic ROT13 letter rotation.
Base64 Decoder — Decode Base64 back to readable UTF-8 text.
HTML Encoder — Escape HTML special characters (< > & " ').
URL Decoder — Decode percent-encoded URL strings back to plain text.
HTML Decoder — Decode HTML entities back to plain characters.

Keep exploring

Browse the full tools directory, filter by category, or read guides on the Text Tools Hub blog.