JPG vs PNG comparison

JPG vs PNG: What's the Difference and Which Should You Use?

The main JPG vs PNG difference is how the formats store images. JPG uses lossy compression and is usually better for photographs and broad compatibility. PNG uses lossless compression and supports transparency, making it a strong choice for screenshots, logos, interface graphics, and images with sharp edges.

JPG vs PNG for photos

For photographs, JPG is usually the more practical format. Photo images contain continuous color changes and complex detail, and JPG compression is designed to reduce that data efficiently. A well-encoded JPG can look very good while using much less storage than a PNG version of the same photograph.

PNG can store the decoded pixels without lossy compression, but that does not automatically make it the better photo format. A photographic PNG may be several times larger than a JPG while offering little visible benefit for normal sharing or web use.

JPG vs PNG for screenshots, logos, and text

PNG is usually better for screenshots, diagrams, logos, interface graphics, and images containing text. These images often have large areas of flat color and sharp boundaries. PNG preserves those edges without the blockiness or ringing artifacts that can appear after aggressive JPG compression.

If a screenshot needs to stay crisp for documentation or editing, PNG is generally the safer default.

Which format supports transparency?

PNG supports alpha transparency, including partially transparent pixels. JPG does not. If you convert a transparent PNG to JPG, the transparent areas must be flattened onto a background color.

If compatibility matters more than transparency, use PNG to JPG. If the transparent background must remain, keep PNG or consider PNG to WebP for a modern web format that can also preserve transparency.

Does PNG always have better image quality than JPG?

Not in every practical sense. PNG uses lossless compression, so its stored pixel data is preserved exactly. JPG removes some image information to reduce file size. But a high-quality JPG can still look visually indistinguishable from the source in many photographic uses.

The better format depends on the job. For a photo that needs to be emailed, uploaded, or shared, JPG is often the better tradeoff. For a graphic that needs transparent pixels or repeated editing without another lossy encode, PNG is usually better.

JPG vs PNG file size

There is no fixed ratio between JPG and PNG file sizes because image content matters. Photos usually compress much more efficiently as JPG. Simple graphics with flat colors can compress very efficiently as PNG. Resolution, color complexity, metadata, and encoder settings also affect the final size.

JPG vs PNG for websites

Use JPG for photographic content when traditional compatibility matters. Use PNG when a graphic needs transparency or lossless pixel preservation. For many modern websites, WebP can also be useful because it supports both lossy and lossless compression and can preserve transparency.

If you already have a JPG or PNG and want a web-oriented alternative, use JPG to WebP or PNG to WebP.

When should you convert PNG to JPG?

• When the image is photographic and the PNG is unnecessarily large.
• When an upload form accepts JPG but not PNG.
• When you do not need transparency.
• When broad compatibility is more important than lossless pixel storage.

When should you keep PNG?

• When the image needs transparency.
• When it contains sharp text, UI elements, diagrams, or logos.
• When you want a lossless raster copy for continued editing.
• When converting to JPG would introduce visible artifacts around edges or text.

Convert between JPG and PNG workflows

FileOnTap groups the available tools by format. Browse the JPG Converter or PNG Converter, convert PNG to JPG when transparency is not needed, or reduce a large file with Compress Image.