Developer · Free browser tool
Base64 Encode/Decode
Convert text ↔ Base64.
Runs on your deviceNo account needed
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Convert text ↔ Base64. Use the controls below to prepare the result on your own device.
How to use Base64 Encode/Decode
01
Enter your text
Paste content into the “Input” field.
02
Set the options
Choose the available options. The result updates as you type.
03
Review the result
Check the “Output” area before copying or downloading any output.
Inputs and options
| Control | Available values or units |
|---|---|
| Mode | Encode, Decode |
What to check
Review the output before using it in another application. Very large inputs may be limited by your browser memory or the receiving application’s format requirements.
Common questions
Is Base64 Encode/Decode free?
Yes. There is no account requirement or payment step to use this tool.
Where is my input processed?
Inside your browser. This tool does not submit your input to a processing server. The hosting service still receives normal requests to load the website and its assets.
Will this work on my phone?
It is designed for current browsers on phones and computers. Available memory, file size, browser format support, and the tool’s controls determine what your device can process.