Base64 Analyzer Online
Analyze Base64 and Data URIs. Detect MIME type, estimated decoded size and content details locally before previewing or converting the data.
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
- Paste your text into the input field.
- Click the action button to process it locally in your browser.
- Copy or download the result.
Privacy
This tool runs in your browser. Your text is not uploaded to a server.
Raw byte workflow
Convert bytes to image
Analyzing a byte array instead of Base64?
Use Bytes to Image for Uint8Array, Buffer, decimal byte arrays and hexadecimal image data. The tool detects the image signature before previewing it.