PNG vs JPG vs WEBP vs BMP
Choosing output format affects quality, transparency support, and file size. For most websites, WEBP or JPG is usually best for photos, while PNG is better for logos, UI assets, and images that require alpha transparency.
Image Converter
Drag & drop an image. Convert locally (no upload). Also supports paste (Ctrl+V).
Notes: JPG removes transparency. Animated images may export the first frame only.
Input
Drop image here
or click to choose a file · Paste also works (Ctrl+V)
No file selected.
Everything runs in your browser. No upload.
Preview
Preview will appear here.
Tip: WEBP often reduces size.
PNG
Lossless compression, transparency supported, usually larger for photos.
JPG
Lossy compression, no transparency, strong size reduction for photo content.
WEBP
Modern format with good compression efficiency, supports transparency, often web-friendly.
BMP
Very simple/legacy format, typically large size, rarely ideal for web delivery.
Typical file-size trend
For the same photo-like image at similar visual quality, file size is often: BMP > PNG > JPG ≈ WEBP. For graphics with flat colors and transparency, PNG can outperform JPG in visual quality and workflow simplicity.
FAQ
When should I use PNG instead of JPG?
Use PNG when you need transparency, sharp text edges, or lossless output for UI graphics.
Is WEBP always smaller than JPG?
Not always, but WEBP is often smaller at similar perceived quality for many web images.
Why did my converted file get bigger?
Different formats compress differently. A format switch can increase size depending on image content and quality level.