LilliDocs › Lilli Image
Free · No account · Nothing uploaded
Convert and compress images
Turn HEIC, WebP, PNG and other photos into JPG, PNG, WebP or PDF, and make them smaller. Compare before and after, then save.
How it works
- Choose your photos. Pick one or more images, or drag them onto the page.
- Pick a format and size. JPG works everywhere, WebP is smallest, PDF puts all your photos in one document. Tap a photo to compare before and after.
- Save. Save each photo, or all at once (10 or more come as one ZIP file). Your originals stay as they are.
Your photos stay on your device
Nothing is uploaded
Your photos are converted by your own browser. They are never sent to us or to anyone else.
Works without internet
Once the page has loaded you can turn off Wi-Fi and keep working.
Free, no account
No sign-up, no limit on the number of photos and no watermark.
Frequently asked questions
Which format should I choose?
JPG for photos you want to send or upload anywhere. PNG for screenshots and images with transparency. WebP gives the smallest files and works in all modern browsers.
Can I convert iPhone photos (HEIC)?
Yes. The first time you open a HEIC photo, a small photo reader (about 1.3 MB) is loaded from lillidocs.com. Your photo itself is not uploaded – it is converted on your own device.
Are my photos uploaded?
No. Everything happens in your web browser on your own device. You can check this by turning off your internet connection after the page has loaded.
Can I convert several photos at once?
Yes, up to 50 at a time. The settings apply to all of them. With 10 or more photos, “Save all” gives you one ZIP file instead of many separate downloads.
Can I put several photos in one PDF?
Yes. Choose PDF under “Save as”. All photos go into one PDF, 1 to 16 per page – for example the front and back of an ID card on one page. Use the arrows to change the order.
What happens to transparent backgrounds?
JPG cannot be transparent, so transparent parts become white. Choose PNG or WebP to keep them.