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Base64 Analyzer Online

Analyze Base64 text, Data URIs and encoded files. Detect type, length, estimated size and preview decoded data locally.

Base64 analyzer

Free Base64 Analyzer

A Base64 analyzer helps identify encoded content type, estimate decoded file size, detect Data URI format and inspect Base64 safely in the browser.

How to use this tool

  1. Paste your text into the input field.
  2. Click the action button to process it locally in your browser.
  3. Copy or download the result.

Privacy

This tool runs in your browser. Your text is not uploaded to a server.

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