Encode Binary Data for Text Transfer

Encode files or binary data to Base64 so they can be safely included in JSON, XML, or plain text.

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Text to encode

Data Transfer tips

📦

Binary data (images, PDFs, executables) can't be reliably transmitted as raw bytes in text-based protocols. Base64 makes them safe.

📋

JSON does not support binary values natively. Encode your binary data as Base64 and include it as a string field in your JSON payload.

💡

Base64 encoded data is ~33% larger than the original. For large files, consider using a file URL or blob storage reference instead.

🔍

Use decode mode to inspect Base64 payloads from API responses, database blobs, or encoded config files.

Daħħal

Enter your data into the tool above. Everything stays local to your browser.

Proċess

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Niżżel

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

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Encode API Data in Base64

Encode credentials, tokens, and payloads to Base64

Encode Images to Base64 for CSS

Convert small images and icons to Base64 data URLs

Encode Files to Base64 for Email

Encode file attachments to Base64 for MIME email c

Decode and Inspect JWT Tokens

Decode the header and payload sections of a JSON W