Image Blob Converter — JS Blob, Data URL & Base64 Locally100% Private and Secure

Introduction

Turn an uploaded image into a usable Blob payload (JavaScript snippet, data URL, or raw Base64), or paste encoded image data back into a Blob you can download. Everything runs in this tab.

Step-by-step

1. Drop an image file, or paste a data URL / raw Base64
2. Choose JS Blob, data URL, Base64, or object URL output
3. Copy the payload or download the image

Worked example

A PNG file becomes a Blob with type image/png plus a JS snippet that rebuilds that Blob from Base64 bytes.

Use cases

• Generate pasteable new Blob([...]) code from an image file
• Turn a pasted data URL into a downloadable image Blob
• Inspect Blob size and MIME type without leaving the browser

Frequently asked questions