2026-08-11
The png vs jpg debate is the classic either/or of image compression. Pick wrong and you either get a file that is absurdly large or an image that turns to mush. This guide starts with the why: why PNG suits text and screenshots, why JPG suits photos, when you have no real choice, and whether 2026 offers a third option.
JPG uses lossy compression: it discards details the eye barely notices to shrink the file, and a photo compressed to a tenth of its size still looks about the same. PNG uses lossless compression: not a single pixel is dropped, and the price is size, usually 5-10x a JPG for the same content.
But PNG does two things JPG cannot: true alpha transparency, and clean edges on text and lines. JPG has no transparency channel, and it smears text and graphics edges with ugly compression noise. That is the core of the png vs jpg difference: one was built for photos, the other for graphics.
The rule of thumb: text or transparency needs, use PNG; photos or small size, use JPG.
For photos, JPG at quality 80-85 versus the original PNG: on a normal screen, most people cannot tell the difference, while the file shrinks by over 80%. For text screenshots, JPG at quality 80 shows obvious mosquito noise around letter edges, so PNG is the only sensible choice.
Practical takeaway: photos trade almost invisibly for JPG's small size; screenshots stay crisp in PNG. The answer to when to use png vs jpg is half about content type, half about how much size you are willing to pay for.
PNG and JPG are both old. WebP and AVIF beat both on compression and quality: WebP runs 25-35% smaller than JPG, AVIF about 50% smaller. Browser support in 2026 is mature. The advice: prefer WebP/AVIF for new projects, keep PNG/JPG for legacy compatibility and special cases. For the deep comparison, see our WebP vs AVIF vs JPEG post.
Pure quality, lossless PNG always wins, but what matters is whether you can see it. Photos with high-quality JPG look identical to most eyes at a fraction of the size; text screenshots need PNG.
Yes, but transparent backgrounds become white or black, so handle that first. Conversion introduces lossy compression; back up the original if quality matters.
PNG grows fast with high resolution and complex colors. Try WebP (often a third of the size) or run it through a compressor.
Photos: WebP or high-quality JPG. Graphics and screenshots: WebP or PNG. Smaller files mean faster pages and better SEO.