WebP vs JPG vs PNG: which image format should you use in 2026?
The three-format debate has a clearer answer than it did five years ago. WebP won most rounds — but there are still two situations where JPG and PNG beat it.
The state of things in 2026
Five years ago you had to argue about WebP support. Today every browser released after 2020 handles it fine, iOS added support in Safari 14 (2020), and even email clients like Gmail and Outlook web display it inline. WebP is no longer risky.
The current defaults:
- WebP is the right choice for almost everything you put on a website you control.
- JPG is the right choice when you don't control the destination and can't guarantee WebP will render.
- PNG is the right choice for transparency and pixel-perfect graphics — nothing else has matched it.
Why WebP won
WebP gives you two knobs JPG doesn't: it can be lossy or lossless, and it supports transparency. At the same visible quality:
- Lossy WebP is 25–35% smaller than JPG.
- Lossless WebP is ~25% smaller than PNG.
- WebP supports alpha transparency (PNG does, JPG doesn't).
That's a straightforward technical win — you get smaller files, no quality tradeoff, and don't have to choose between "photo format" and "graphics format." One format handles both.
When JPG still wins
Two scenarios:
- The destination is out of your control. Uploading a photo to a decade-old CMS, sending a screenshot to a print shop, filling out a government form — many of these still expect JPG and will silently reject WebP. If you don't control the receiving end, ship JPG.
- The image will pass through re-encoding services. Every social platform (Instagram, LinkedIn, Twitter/X, Facebook) recompresses uploads. Some of these silently convert WebP back to JPG at low quality, and you end up worse off than if you'd uploaded JPG yourself. Post JPG at moderate quality; the platform will recompress it once, not twice.
Convert with PNG to JPG or Image Compressor.
When PNG still wins
Two scenarios:
- Screenshots and UI mockups. PNG's lossless mode keeps text edges perfectly crisp. WebP lossless is smaller but browser support for tools that consume the image (design apps, older screenshot viewers) is still spotty.
- Icons and logos with transparent backgrounds. Both PNG and WebP support alpha, but PNG's transparency handling in older software is more reliable. If your logo needs to work everywhere including PowerPoint on a 2016 laptop, ship PNG.
Convert with JPG to PNG.
A practical decision tree
- Photo destined for a website you control → WebP (JPG to WebP)
- Photo for social media → JPG
- Photo for email → JPG (WebP works in Gmail/Outlook but some corporate mail clients still don't)
- Screenshot of code, text, or UI → PNG (or WebP lossless if you control the destination)
- Logo/icon with transparency → PNG (or WebP if all destinations support it)
- Photo you're archiving → PNG (lossless preservation) or original camera RAW if you have it
The compression sweet spot
Regardless of format, ~80–85% quality is almost always the right setting for JPG and WebP. Above that, files get big without visible improvement. Below 70%, artifacts start to show. Image Compressor defaults to this range for exactly this reason.
The privacy angle
Converting images between formats is a place where uploading has always felt weird — many people convert wedding photos, ID scans, or product mockups that shouldn't sit on a stranger's server. All of the format conversions above (JPG to WebP, PNG to WebP, PNG to JPG, JPG to PNG) run entirely in your browser on DashConvert — file never leaves your device.