Free online tool
Encode or decode Base64 text
Convert text to Base64 or decode a Base64 string in your browser. Base64 is an encoding format, not encryption or a secure way to hide secrets.
Open the interactive Base64 Encoder / Decoder
The interactive tool loads in the page. Enable JavaScript to enter data, process content, and download results.
Quick guide
How to use this tool
- 01Choose encode or decode mode.
- 02Enter the text or Base64 value.
- 03Run the conversion and copy the result.
Capabilities
Features and supported formats
- Both encode and decode directions.
- Reports malformed input in plain language.
- Runs locally for development and data inspection.
Supported formats
Input and output: text encoded as Base64.
Answers
Frequently asked questions
Is Base64 encryption?
No. Base64 is a reversible encoding and does not protect confidential data. Do not use it to secure passwords or secrets.
Why does decoding fail?
The input may contain invalid characters or incomplete padding. Check that you copied the full Base64 string.