Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to readable text instantly.
What is the Base64 Encoder / Decoder?
Base64 is a way of representing data as plain text using a limited set of characters, which makes it safe to embed in things like data URLs, JSON, or email. This tool encodes any text into Base64 and decodes Base64 back to its original text. Developers use it when working with tokens, encoded payloads or inline assets. It handles the conversion instantly in your browser, so sensitive strings never leave your device.
How to use the Base64 Encoder / Decoder
- Paste your text or Base64 string.
- Choose Encode to convert text to Base64, or Decode to reverse it.
- Copy the result.
Why use Quably's Base64 Encoder / Decoder?
- Encode and decode in one tool
- Handles Unicode text correctly
- Instant conversion
- Runs locally — private
- Free, no sign-up
Frequently asked questions
What is Base64 used for?
It lets binary or awkward data travel as plain text — common in data URLs, JSON fields, tokens and email attachments.
Is Base64 encryption?
No. Base64 is encoding, not encryption — anyone can decode it. Do not use it to hide secrets.
Does it handle emoji and accents?
Yes, it encodes and decodes full Unicode text correctly.
Is it free?
Yes, and there is no account to create.