PNG vs JPG: Which Should You Use? (With Examples)

2 October 2026·4 min read

PNG vs JPG comes down to one question: is your image a photograph, or does it have sharp edges and text? Use JPG for photos, it's small and universal. Use PNG for logos, icons, screenshots and anything with crisp lines or transparency, because PNG is lossless and keeps those edges clean. Everything else is detail.

The core difference: lossy vs lossless

JPG is *lossy*: it compresses by throwing away data your eyes are least likely to notice, which makes files small but can add faint blockiness or halos around high-contrast edges, exactly where text and line art live. PNG is *lossless*: it stores every pixel exactly, so edges stay perfectly sharp, and it supports transparency. The cost is size, a PNG of the same photo is often several times larger than the JPG.

When to use JPG

Photographs of any kind, people, landscapes, products.
Images you're emailing or uploading where a small file matters.
Anything headed to a site with a size limit.
Social posts and galleries where photos dominate.

Got a bulky PNG photo? Convert PNG to JPG to shrink it, often dramatically, with no visible loss.

When to use PNG

Logos, icons and graphics with flat colors and hard edges.
Screenshots, especially of text or UI.
Images that need transparency (no background).
A lossless working copy you'll edit repeatedly.

Need a lossless or transparency-ready copy of a JPG? Convert JPG to PNG. Have an image in some other format you want as a clean PNG? Convert it to PNG.

Does converting JPG to PNG improve quality?

No, and this trips people up. Converting a JPG to PNG can't recover the detail the JPG already discarded; it just stops any *further* loss, giving you a lossless copy to edit from. Going the other way, PNG to JPG, does shrink the file, but adds JPG's compression, so only do it when size matters more than perfect edges. The rule of thumb: keep your master in the lossless format and hand out whichever copy fits the destination.

Quick answer

Photograph? JPG. Text, logo, screenshot, or transparency? PNG. When you need to switch, it's free and private: PNG to JPG to shrink a photo, JPG to PNG for a lossless copy, both run in your browser with nothing uploaded.

Questions

Is PNG better than JPG?: Neither is better overall. PNG is lossless and best for text, logos, screenshots and transparency; JPG is smaller and best for photographs. Pick based on the image: sharp edges and text → PNG, photos → JPG.
Why are my PNG files so much larger than JPG?: Because PNG is lossless, it stores every pixel without JPG's aggressive compression. For photographs that means files several times larger, which is why JPG is preferred for photos.
Does converting JPG to PNG improve quality?: No. It can't restore detail a JPG already discarded; it only prevents further loss and gives you a lossless copy to edit. To keep quality high, always start from the best source you have.
How do I convert between PNG and JPG for free?: Use a browser-based converter like Toolosity's PNG to JPG and JPG to PNG tools. They run on your device with no upload, account, or watermark, and can batch many images at once.