Base64 Encoder/Decoder
Switch between encoding plain text into Base64 and decoding Base64 back to readable text, with the conversion running as you type.
Overview
Base64 turns arbitrary binary or text data into an ASCII-safe string, which is why it shows up in places that can't reliably carry raw binary — embedding small images in CSS/HTML, encoding auth headers, or passing data through systems that only handle plain text. This tool handles the encode and decode direction for plain text, so you can move between the two forms without writing a script.
Examples
Encoding
Hello, Adikya!
SGVsbG8sIEFkaWt5YSE=
Decoding
SGVsbG8sIEFkaWt5YSE=
Hello, Adikya!
How It Works
- Paste your text or Base64 string into the input box.
- Choose Encode or Decode, depending on which direction you need.
- Click Convert to see the result — switch modes at any time without losing your input.
FAQ
No. Encoding and decoding happen entirely in your browser using the standard Base64 and Unicode APIs — nothing you type ever leaves your device.
Yes. Text is encoded as UTF-8 before conversion, so emoji and non-English characters round-trip correctly.
The tool shows an error message instead of incorrect output — it never guesses at malformed input.
No. Base64 is a reversible encoding, not encryption — anyone can decode it back to the original text with no key required. Don't use it to protect sensitive data.