Base64 Encoder / Decoder
Encode and decode Base64 strings online.
About this tool
Base64 is a binary-to-text encoding scheme used in HTML, CSS, JSON, emails, and URL-safe data transfer. This tool lets you convert text to Base64 and decode Base64 back to text instantly, without any server round-trip.
How to use the Base64 Encoder / Decoder
- Enter the text you want to encode, or paste a Base64 string to decode
- Click Encode to convert plain text to Base64
- Click Decode to convert Base64 back to readable text
- Copy the result to your clipboard with one click
Features
- Instant encode and decode
- Clipboard copy for results
- Supports all Base64 alphabets
- No file upload needed
- Runs entirely in your browser
Frequently asked questions
Is the Base64 encoder free?
Yes. DevUtils Base64 encoder and decoder is 100% free with no signup required.
Is Base64 encoding secure?
Base64 is not encryption — it is only an encoding. Anyone can decode it. Do not use Base64 to protect sensitive data.
Can I decode Base64 online here?
Yes. Paste your Base64 string and click Decode to get the original text.
Does this work offline?
Yes. All Base64 encoding and decoding happens entirely in your browser.