Guide · Updated 2026-07-29
PNG vs JPG for the Web: Which Format Should You Export?
A practical comparison of PNG and JPG for photos, screenshots, and uploads — plus when WebP belongs in the mix.
What each format optimizes for
JPG (JPEG) uses lossy compression tuned for photographs and smooth gradients. It discards detail the eye is less likely to notice, which is why camera photos become much smaller than the same scene stored as PNG.
PNG uses lossless compression. Every pixel can be reconstructed exactly, which protects sharp edges, UI chrome, and text. That fidelity often costs more bytes on continuous-tone photos.
Neither format is universally 'better.' The right export depends on whether your image behaves more like a photo or more like a graphic.
Choose JPG when…
You are delivering photographs, product shots, or any image dominated by soft color transitions. Email attachments, job portals, and many CMS uploaders still expect JPG for this class of file.
You need a smaller file and can tolerate a little compression. Start with a moderate quality setting and only crush harder if a kilobyte limit forces it.
You do not need transparency. JPEG has no alpha channel; transparent areas must be flattened onto a background color before export.
Choose PNG when…
You have screenshots, diagrams, logos, or UI captures where text must stay crisp. JPEG ringing around letters is hard to reverse and looks unprofessional in documentation.
You need transparency for overlays, stickers, or graphics that sit on varied backgrounds.
You want a lossless intermediate while editing. Convert back to JPG only for the final delivery if size matters more than perfect pixel fidelity.
Where WebP fits
WebP can beat both formats on size for many web deliveries, with lossy and lossless modes. Browser support is broad today, but some older portals and email clients still reject it.
A practical pipeline: keep a high-quality master, export WebP for modern websites, and keep JPG or PNG copies for picky upload forms. ImgKit converters help when a destination refuses the format you already have.
If a client or CMS cannot accept WebP, do not fight the toolchain — convert to the format they document and move on.
Ready to try it? Convert PNG to JPG