Add up to 30 JPG images (up to 50 MB each) and convert them to PNG, WebP or AVIF. Auto, the default, encodes each image as PNG and WebP and keeps the smaller file, which for photos is nearly always WebP; choose AVIF directly when you want it. WebP and AVIF use the quality slider (10 to 100, default 85), WebP also has a lossless option, and PNG is always lossless. Everything runs in your browser.
How to convert JPG to PNG, WebP or AVIF
- Add your JPG files by dragging them in or clicking to browse.
- Choose PNG, WebP or AVIF, or leave the output on Auto.
- For WebP and AVIF, set the quality. PNG ignores it because it's lossless.
- Download the converted images one by one or as a ZIP.
Why convert JPG to another format?
JPG works everywhere, but PNG, WebP and AVIF each do something JPG can't.
PNG: for editing and sharp graphics
PNG is lossless and supports transparency. Choose it when you plan to add a transparent background, when the image has text, sharp edges or flat colors, when you will edit and save it several times, or for screenshots, diagrams and interface images. The cost is size: a JPG photo usually becomes several times larger as a PNG, so for photos on the web WebP or AVIF is the better target.
WebP: smaller files with wide support
Lossy WebP, based on the VP8 video codec, usually makes photos noticeably smaller than JPG at similar quality, and every current browser supports it. It also handles transparency. WebP is a good choice for faster pages and better Core Web Vitals scores, especially Largest Contentful Paint, and for sites that mix photos and graphics.
AVIF: the smallest files for modern browsers
AVIF, based on the AV1 video codec, usually gives the smallest files of the three. Current versions of Chrome, Firefox, Safari (16.4 and later) and Edge display it. Use it when file size matters most, for example on mobile-first sites and image-heavy pages, and serve WebP or JPG as a fallback for older browsers. Encoding takes longer than WebP.
Format comparison
| Format | Size vs. JPG | Transparency | Browser support | Best for |
|---|---|---|---|---|
| PNG | Much larger for photos | Yes | Universal | Graphics, text, editing |
| WebP | Usually smaller | Yes | All current browsers | Web images, mixed content |
| AVIF | Usually smallest | Yes | Current browsers | Smallest files on modern sites |
| JPG | Baseline | No | Universal | Photos, email, older systems |
Which format should you choose?
Choose PNG for text, sharp edges, flat colors, transparency, screenshots, diagrams and images you will keep editing. Choose WebP for smaller web images with broad support, including graphics that need transparency. Choose AVIF when the smallest file matters most and your visitors use current browsers. Keep JPG when the image goes to email or older systems, or when it's already small enough.
Privacy
The conversion runs in your browser, and your JPG files are never uploaded. The converted files are saved without the original EXIF data, which also removes any GPS location.
Frequently Asked Questions
Will converting JPG to PNG improve image quality?
No. PNG keeps the JPG's current quality but can't restore detail the JPG compression already removed. Its value is that it doesn't add new compression loss when you edit and save again.
Is WebP or AVIF better for my website?
WebP is the simpler choice: every current browser supports it and the files are clearly smaller than JPG. AVIF is usually smaller still but encodes more slowly and needs a fallback for older browsers. Many sites serve AVIF first with WebP and JPG fallbacks.
Can I convert JPG to PNG and keep the same file size?
Not really. PNG stores every pixel without loss, while JPG discards detail to stay small, so a JPG photo typically becomes several times larger as a PNG. For smaller files at similar quality, use WebP or AVIF.
Will my converted images work in email clients?
JPG is the safest choice for email. Some email clients, especially older Outlook versions, don't display WebP or AVIF. PNG works in most email clients but makes photos large. For email attachments, keep JPG.
Can I convert multiple JPG files at once?
Yes. Add up to 30 JPG files, convert them with the same settings, and download the results individually or as a ZIP.