Free browser-based tool

Base64 Encoder and Decoder Online

Convert Unicode text and Base64 values without uploading your input.

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Base64 Encoder and Decoder Online

What is this tool?

Base64 represents binary data using a limited set of text characters. It is commonly used in data URLs, email attachments, API payloads, and configuration files.

How to use it

Encode a value such as Hello world, or paste an existing Base64 string to recover its readable text.

Privacy

This tool is designed to process your input locally in the browser. Avoid entering passwords, private keys, or other sensitive production data into any online tool.

Frequently asked questions

Is Base64 encryption?

No. Base64 is an encoding format and provides no secrecy.

Does this tool support Unicode?

Yes. Text is converted through UTF-8 before encoding and after decoding.

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