Instant & Client-Side

Convert PNG to B64

The fastest way to convert Portable Network Graphics to B64 File online. Free, secure, and works on any device.

1How to convert PNG to B64

Upload

Drag & drop your PNG file into the box above.

Convert

Click "Convert" to transform it to B64 instantly.

Download

Save your new file to your device.

2Why use Flux Converter?

Zero Data Usage

Files are converted in your browser. No uploading means no data usage and total privacy.

Lightning Fast

Powered by WebAssembly, conversions happen instantly on your device.

No Limits

Convert as many files as you want, of any size.

Universal

Works on Windows, Mac, Linux, Android, and iOS.

3Why convert PNG to B64?

Understanding the strengths and limitations of each format helps you decide when converting from PNG to B64 makes sense. PNG was created in 1996 as a patent-free alternative to GIF after the Unisys LZW patent controversy. It rapidly became the standard for lossless web graphics.

PNG

Strengths
Lossless compression preserves full quality
Supports full alpha transparency
Excellent for text, logos, and screenshots
No patent restrictions
Limitations
Much larger file sizes than JPG for photos
No animation support (use APNG instead)
Not ideal for large photographs
Can be slow to encode at maximum compression

B64Target

4Technical Details

FeaturePNGB64
Full NamePortable Network GraphicsB64 File
MIME Typeimage/png-
CategoryImage-
Use CasesLogos and icons with transparency, Screenshots and UI mockups, Web graphics requiring crisp edges, Print-ready graphics with no quality loss-
DescriptionPNG is a raster-graphics file-format that supports lossless data compression. It was developed as an improved, non-patented replacement for Graphics Interchange Format (GIF).No description available.

5Frequently Asked Questions

What is the difference between PNG and B64?

PNG (Portable Network Graphics) and B64 (B64 File) serve different purposes. PNG is a raster-graphics file-format that supports lossless data compression. It was developed as an improved, non-patented replacement for Graphics Interchange Format (GIF). On the other hand, Converting between them lets you leverage the strengths of each format depending on your needs.

Does converting PNG to B64 lose quality?

This depends on the formats involved. If the target format (B64) uses lossy compression, some data may be discarded during conversion. However, if B64 is lossless, your file will be preserved at full quality. Our converter uses the best available algorithms to minimize any quality difference.

Is it safe to convert files here?

ABSOLUTELY. Unlike other sites, we do NOT upload your files to a server. All processing happens locally on your device using advanced browser technologies. Your files never leave your computer.

Is this service really free?

Yes, 100% free. No hidden fees, no watermarks, and no registration required. We support ourselves through non-intrusive advertising.

When should I use PNG instead of B64?

PNG is best for: Logos and icons with transparency and Screenshots and UI mockups. B64 is better for: general use. Choose whichever format best fits your workflow and compatibility requirements.

Can I convert PNG on mobile?

Yes! Our converter works on iPhones, iPads, and Android devices. All processing happens in your browser — no app download needed.

Privacy Guarantee

Your files are yours. We do not store, view, or claim ownership of any content you convert. Processing is done entirely in your browser.