What image formats can I upload?The image editor accepts JPG, JPEG, PNG, and WEBP files (up to 10MB each). Please upload GIFs on the separate GIF editing screen.
Can I edit GIFs too?Yes. Upload a GIF file (up to 20MB) from the GIF Edit menu in the header/footer to trim, change FPS, crop, resize, and compress it.
Are uploaded images or GIFs stored on a server?No. Both image editing and GIF editing are processed entirely in your browser and are never sent to an external server.
Is it free?Yes, prezll is provided free of charge.
Do I need to sign up or log in?No. You can start using it right away without signing up.
Do downloaded images or GIFs have a watermark?No. No watermark is added to downloaded files.
Which browsers are supported?prezll works in the latest versions of most modern browsers, including Chrome, Edge, Safari, and Firefox. Some older browsers may have limited support for certain features, such as reading animated WebP files.
Does it work on mobile?Yes. Mobile browsers support the same features as desktop.
Does downloading reduce the image resolution?No. Unless you crop or resize to a smaller size yourself, the downloaded file keeps the original resolution.
What file format is the download saved in?Images are saved in the same format you uploaded (JPEG, PNG, or WEBP), and GIFs are saved as GIF files.
Can I edit multiple images at once?Currently, you can edit one image or GIF at a time.
Is there a limit on Undo?No. You can undo and redo as many times as you like while editing.
Is there a limit on GIF frame count?There's no hard limit, but a notice appears if a GIF has more than 150 frames, since preview and download may become slower.
If my internet connection drops, will my edits be lost?Image editing happens entirely in your browser, so as long as you don't refresh or close the page, editing continues normally even if your connection drops.
Can I use the images or GIFs I create commercially?Yes. There are no restrictions on how you use what you create with prezll.
How can I verify nothing is sent to a server?Open your browser's developer tools, go to the Network tab, and upload an image — you'll see that no request related to the image file is ever made.