Remove all photos from mosaic?
Enter a title to save this layout locally in IndexedDB.
Mosaic is a free, private photo collage maker that runs in your browser on phone and desktop, inspired by the old Instagram Layout app. Add up to 12 photos, choose a recommended layout or shuffle for a new one, and pick an aspect ratio such as 1:1 square, 4:5 portrait or 9:16 story. Pan, zoom, flip and reorder each photo, adjust the gap, rounded corners and background colour, then export a high-resolution JPG, PNG or WEBP. Projects autosave on your device, the app works offline, and photos are never uploaded.
Is Mosaic free? Yes, with no account or watermark.
Are my photos uploaded? No. Everything is processed locally in your browser.
Which formats can I export? JPG, PNG and WEBP at up to 2160 pixels.