Image ↔ Base64
Convert images to Base64 and back
Free forever — no sign-up, nothing uploaded. Files never leave your device.
Image ↔ Base64
Convert images to Base64 and back
Drop your file here
or browse from your device
Browse filesdocument.pdf
1.2 MB
report.pdf
860 KB
100% private
Nothing is uploaded — everything runs in your browser.
Free forever
No account or payment required.
No sign-up
Open the tool and start using it right away.
Local processing
Processing time depends on your input and device.
About this tool
Turn PNG, JPG, GIF, SVG, WEBP and BMP files into base64 data, or paste base64 to preview and download the image.
The BrainCoder Image to Base64 tool converts any image file (PNG, JPG, GIF, WebP, SVG, and more) into a Base64-encoded data URI string — entirely in your browser. No image is uploaded to any server. This is invaluable for embedding images directly in HTML, CSS, or JSON without needing a separate file host or CDN.
Base64-encoded images (also called data URIs) inline the image data right into your markup. While this increases file size by about 33%, it eliminates extra HTTP requests, which can improve performance for small icons and logos. It's also the only way to embed images in environments that don't support file uploads — like some email templates, markdown documents, or single-page applications.
Our tool displays the encoded output along with the original and encoded file sizes so you can make an informed decision about whether inlining is appropriate. Simply drag and drop an image or click to browse — the conversion happens instantly and locally.
Key features
Everything you get with Image ↔ Base64 — no premium upsell.
Supports PNG, JPG, GIF, WebP, SVG, BMP, and ICO formats
Generates data URI strings for direct HTML embedding
Shows original vs encoded file size comparison
Drag-and-drop or click-to-browse file selection
Copy output as data URI or raw Base64
Zero uploads — conversion happens 100% in your browser
How to use Image ↔ Base64
Follow the steps below to use the tool.
- 1
Select an image
Drag and drop an image file onto the tool area, or click the browse button to select a file from your computer. Supported formats include PNG, JPG, GIF, WebP, SVG, BMP, and ICO.
- 2
View the conversion
The tool instantly reads the image file and converts it to a Base64-encoded data URI string. You'll see a size comparison showing original vs encoded size.
- 3
Choose output format
Copy the result as a complete data URI (with the data:image/png;base64, prefix) for HTML embedding, or as raw Base64 for other use cases.
- 4
Embed in your project
Paste the data URI into an HTML img src attribute, a CSS background-image value, or any other place you need inline image data.
Still free, still private — your files never leave your device.
Launch Image ↔ Base64Frequently asked questions
Quick answers before you launch the tool.
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