JPG vs PNG: Which Should You Use?

Q: Is JPG or PNG better for photos?

JPG is almost always better for photographs destined for the web — it achieves 80–95% smaller files with barely perceptible quality loss at high quality settings. PNG is lossless and produces much larger files for photographic content. Use PNG for photos only when you need repeated lossless editing.

Q: Is JPG or PNG better for logos and graphics?

PNG for anything with hard edges, text, flat colors, or transparency. JPG compression introduces visible artifacts around sharp contrasts — visible ringing and blurring on text and logos even at high quality settings.

Q: Which format is better for transparency?

PNG. JPG has no alpha channel — transparency is impossible. If transparency is a requirement, use PNG (or WebP, which also supports transparency with better compression).

Q: Does converting JPG to PNG improve quality?

No. JPG compression discards data permanently. Converting to PNG gives you a lossless container, but the pixels inside are exactly what the JPG had — no detail is restored.

Last updated: June 26, 2026 · By Bytewitness

The short answer: JPG for photographs on the web, PNG for graphics, text, logos, and anything with transparency. The longer answer depends on your specific situation — here's what actually changes between the two formats.

Head-to-head comparison

Factor	JPG	PNG
Compression	Lossy — discards fine detail permanently	Lossless — every pixel stored exactly
File size (photos)	Small — typically 80–95% smaller than PNG	Large — stores all data without shortcuts
File size (graphics)	Often larger or similar to PNG; visible artifacts on hard edges	Often smaller for flat colors and hard edges
Transparency	None — no alpha channel	Full alpha channel support
Re-save quality	Degrades with each save — artifacts accumulate	No degradation — pixel-identical on re-save
Text / logos	Blurry halos visible even at high quality	Sharp, clean — lossless handles hard edges perfectly
Best for	Photographs, web images where size matters	Graphics, screenshots, UI, images with transparency
Browser support	Universal	Universal

When to use JPG

JPG's lossy compression is a feature, not a bug, for photographic content. A 4MB raw photo exported as a high-quality JPG typically lands around 300–600KB — barely any visible difference at normal viewing sizes.

Use JPG when:

The image is a photograph. You're publishing to the web and file size matters. You don't need transparency. You won't be editing and re-saving repeatedly — each save cycle in JPG accumulates loss.

Avoid JPG when:

The image has text, a logo, or hard-edged graphics. You need transparency. You're using the file as a source for future editing. You're exporting UI screenshots — compression artifacts on borders and text are visible.

When to use PNG

PNG's lossless compression means the file is larger, but exactly right. For anything where pixel accuracy matters — a screenshot, a logo, a UI graphic — PNG is the correct choice.

Use PNG when:

The image has text, sharp edges, or flat colors. You need transparency (icons, logos with clear backgrounds, UI elements). You're providing source files for design work. You need to edit and re-save without accumulating loss.

Avoid PNG when:

You're serving photographs to web visitors and file size is a concern. The photo has no transparency needs. You have hundreds of large photos — the size difference is significant at scale.

What about WebP?

WebP is worth considering as a third option for modern web use. It achieves roughly 25–35% smaller files than JPG for photographs, and 25% smaller than PNG for lossless graphics — with full transparency support. Browser support covers all modern browsers. If you control your publishing environment and your audience uses modern browsers, WebP is often the right answer for both use cases JPG and PNG currently serve separately.

Frequently asked questions

Is JPG or PNG better for photos?

JPG is almost always better for photographs on the web — 80–95% smaller files with barely perceptible quality loss at high settings. Use PNG only when you need repeated lossless editing.

Is JPG or PNG better for logos and graphics?

PNG. JPG compression introduces visible ringing and blurring around sharp edges and text — even at high quality settings, logos and UI elements look noticeably worse as JPGs.

Which format is better for transparency?

PNG, unambiguously. JPG has no alpha channel — transparency is impossible. PNG (and WebP) both support full transparency.

Does converting JPG to PNG improve quality?

No. JPG discards data permanently. Converting to PNG gives a lossless container, but the pixels inside are exactly what the JPG had — no detail is restored.

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