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Client-side ProcessingUpdated 2026-02-10Report issue

Runs fully in your browser. Inputs stay on your device. See recent fixes on changelog.

Base64 Encode / Decode

Encode text to Base64 or decode Base64 strings. UTF-8 safe.

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Plain Text
Base64 Output

Output will appear here

About Base64 Encode / Decode

Encode text to Base64 or decode Base64 strings. UTF-8 safe. Encode and decode Base64 strings online for free. Handles UTF-8 text correctly. Instant, no signup needed. Everything runs client-side in your browser for maximum speed and privacy — no data is sent to any server, and no signup is required.

Related tools: Image Base64 Converter, URL Encode / Decode, Hash Generator

How to Use Base64 Encode / Decode

  1. Enter your input into the tool.
  2. The tool processes it instantly in your browser.
  3. Copy the result to your clipboard.

Frequently Asked Questions

What is Base64 Encode / Decode?
Encode and decode Base64 strings online for free. Handles UTF-8 text correctly. Instant, no signup needed.
Is Base64 Encode / Decode free to use?
Yes, it is completely free to use. It runs entirely in your browser with no signup, no account, and no usage limits.
Is my data safe when using Base64 Encode / Decode?
Yes. All processing happens locally in your browser. No data is uploaded to any server, so your information stays private and secure.