Converter Tools
PNG to Base64
Upload a PNG file and get a Base64 string or data URI ready to embed in HTML or CSS.
Last updated: May 29, 2026
Client-Side Processing
Input Data Stays on Device
Instant Local Execution
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Buy me a coffeeWhat is PNG to Base64?
PNG to Base64 reads a PNG image file in your browser and encodes it as a Base64 string. The data URI output (data:image/png;base64,...) lets you embed the image directly in an HTML img src or CSS background-image without hosting the file separately. Transparent PNGs are fully supported.
How to Use PNG to Base64
1
Drop a PNG file onto the upload area or click to browse.
2
Copy the Base64 string or data URI.
3
Paste into your HTML img src or CSS background-image.
Common Use Cases
- Embedding icons or logos inline in a single-file HTML page.
- Including transparent PNGs in HTML email templates.
- Storing small UI images as Base64 in a JavaScript or CSS file.
File size
Base64 adds ~33% overhead. Compress the PNG with a tool like image-compressor before encoding to keep inline data manageable.
Frequently Asked Questions
Are transparent PNGs supported?
Yes. The alpha channel is fully preserved in the Base64 output.
Is my file uploaded?
No. The file is read and encoded entirely in your browser using the FileReader API.
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