Your data is never sent to any server.
The Base64 encoder and decoder converts text to Base64 and back instantly. Paste the content, choose the direction and copy the result; if the string is not valid Base64, the tool tells you clearly.
Everything happens in your browser, with nothing sent to any server.
What it’s for
- Web development: inspect the contents of JWT tokens, basic auth headers or data URIs.
- API debugging: decode Base64-encoded payloads that show up in logs and requests.
- Email and MIME: understand the encoded attachments and bodies that travel in messages.
- Config: encode values for environment variables or Kubernetes secrets that require Base64.
How to use Text to Base64
- 1
Choose the operation
Select “Encode” to convert plain text to Base64, or “Decode” to recover the original text from a Base64 string.
- 2
Paste the content
Enter the text or Base64 string in the input pane. The conversion runs automatically as you type.
- 3
Read the result
The right pane updates instantly. If the Base64 string is invalid, you'll see an error message describing the problem.
- 4
Copy the result
Press the copy button to send it to your clipboard. The whole process happens in your browser.
Frequently asked questions
What is Base64?
An encoding scheme that represents binary data using only 64 printable characters (letters, digits, + and /). It lets you carry any data over text-only channels.
Is Base64 encryption?
No. Base64 is an encoding, not encryption; anyone can decode it. Never use it to protect passwords or sensitive information.
Why do some Base64 strings end in = or ==?
That's padding. Base64 groups data in threes of bytes; when the last group is incomplete, it is padded with one or two equals signs.
Does it work with accents and emoji?
Yes. The text is first encoded as UTF-8, so any Unicode character is converted and recovered correctly.
Is my data sent to any server?
No. Encoding and decoding happen entirely in your browser, so it's safe to paste internal data like tokens or configs.