Image Guides
JPG, PNG, WebP, AVIF — Which Image Format Should You Use?
A plain-English guide to image formats and how to convert between them in your browser, without uploading anything. Pick the right format and convert it locally.
JPG, PNG, WebP, AVIF — four letters that decide file size, quality, and whether a browser even shows your image. Here's the quick version, plus how to switch between them privately.
The formats at a glance
| Format | Best for | Transparency | Size |
|---|---|---|---|
| JPG | Photos | No | Medium |
| PNG | Logos, screenshots, anything with transparency | Yes | Large |
| WebP | Web images (modern sites) | Yes | Small |
| AVIF | Web images where size matters most | Yes | Smallest |
Rule of thumb: photos → JPG or WebP; anything needing a see-through background → PNG or WebP; maximum web speed → AVIF.
Convert between them locally
Our image converter handles JPG, PNG, WebP, and AVIF (plus SVG and HEIC input) entirely in your browser:
- Drop the image in.
- Choose the output format.
- Download — nothing is uploaded.
Typical conversions
- PNG → JPG when you don't need transparency and want a smaller file.
- JPG → WebP to speed up a website.
- JPG → AVIF for the smallest web images (check browser support first).
- HEIC → JPG for iPhone photos — see our HEIC guide.
- SVG → PNG for logos that need to be a raster file — try SVG to PNG.
After converting
- Shrink the result with the image compressor.
- Remove a background with the AI cutout tool before export.
- Resize for a specific column with image resize & crop.
Choosing the right format is half the battle; converting it on your own device is the other half — no uploads, no waiting, no copies left on someone's server.
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