Cobalt Tools UploadReady

Free browser utility

Base64 Encode and Decode Online Free

Encode plain text to Base64 or decode Base64 back to readable text without uploading content.

Base64 encodeBase64 decodeUnicode-safe text

FREE browser utility

Base64 Encode Decode

Encode and decode Base64 text locally in your browser.

How to use this tool

  1. 1

    Paste text or Base64.

  2. 2

    Choose encode or decode.

  3. 3

    Copy the output.

Where are my files and text processed?

Processing takes place locally in your browser. Your selected files and text stay on your device during processing.

Is this tool free to use?

Yes. Use this tool for free, directly in your browser, without an account.

How do I save the result?

Use the download or copy action in the workspace once your result is ready.

Related free developer tools

Nearby text, code and conversion utilities that run locally in the browser.

Search all tools