WebP vs JPEG vs PNG: Which Image Format Should You Use in 2026?
Updated November 3, 2026 · 3 min read
Convert JPG or PNG to WebP in one click and see the size difference immediately.
Choosing an image format used to be easy: photos were JPEG, everything else was PNG. Today WebP is supported by every major browser, AVIF is close behind, and the "right" choice depends on what the image is and where it will be shown.
Here is the short version, then the details.
Rule of thumb: on a website, use WebP for everything. For files you send to people or upload to forms, use JPEG for photos and PNG for graphics.
The formats at a glance
| Format | Compression | Transparency | Animation | Typical use |
|---|---|---|---|---|
| JPEG | Lossy | No | No | Photos, e-mail, forms |
| PNG | Lossless | Yes | No | Logos, screenshots, UI graphics |
| GIF | Lossless, 256 colours | Yes (1-bit) | Yes | Short animations, memes |
| WebP | Lossy and lossless | Yes | Yes | Everything on the web |
| AVIF | Lossy and lossless | Yes | Yes | Hero images where every KB counts |
JPEG — the universal photo format
JPEG throws away detail the eye cannot easily see, which makes it very efficient for photographs. Every device, program and website accepts it. Its weaknesses: no transparency, and visible artefacts around sharp edges (text, logos) at lower quality settings.
Use JPEG when compatibility matters more than the last 25% of file size — e-mail attachments, online forms, anything a human will download.
PNG — pixel-perfect, but heavy
PNG is lossless: what you save is exactly what you get back. That makes it ideal for screenshots, diagrams, logos and anything with text or flat colour, and it supports full alpha transparency. The price is size — a PNG photo can be 5–10× larger than the same photo as JPEG.
A common trick is lossy PNG (palette reduction, what TinyPNG does): the image is reduced to 256 well-chosen colours, which cuts size by 60–80% while keeping transparency. Our PNG compressor does this when the quality slider is below 100.
WebP — the web default
WebP, developed by Google, does both lossy and lossless compression and supports transparency and animation. In practice:
- Lossy WebP is 25–35% smaller than JPEG at the same visual quality.
- Lossless WebP is ~26% smaller than PNG.
- Supported by Chrome, Firefox, Safari (since 14), Edge and all mobile browsers — effectively 97%+ of users.
Smaller images mean faster pages, and page speed is part of Google's ranking signals (Core Web Vitals, especially Largest Contentful Paint). If you run a website, converting JPG to WebP and PNG to WebP is the single easiest performance win.
The downside: some desktop programs and older CMS plugins still don't open WebP, and most forms reject it. Keep an original for those cases.
AVIF — smaller still, with caveats
AVIF compresses even better than WebP (often another 20–30% smaller), but encoding is slow, support in editing tools is patchy, and a few older browsers don't show it. It shines for large hero images served with a <picture> fallback; for ordinary content images, WebP is the pragmatic choice.
GIF — only for animation, and even then…
GIF is limited to 256 colours and compresses poorly; a 5-second clip can be several megabytes. Animated WebP or a short MP4 is usually 5–10× smaller. If you must ship a GIF (some platforms require it), compress the GIF by reducing dimensions and frame count.
Decision guide
- Is it going on a website? → WebP (AVIF for big hero images with a fallback).
- Is it a photo someone will download, e-mail or upload to a form? → JPEG, quality 75–85.
- Does it need transparency or contain text/logos, and it's not for the web? → PNG.
- Does it animate? → Animated WebP or video; GIF only when required.
Whatever you pick, resize to the dimensions you actually need before compressing — that is where most of the savings are. See how to compress an image to 100 KB for the full workflow.
Turn JPEG photos into WebP — typically 25–35% smaller at the same visual quality, which means faster pages and better Core Web Vitals.