Add photos
Select several and they are all fitted to the same size. Each file can be up to 25 MB.
Fit photos to the exact sizes used by Instagram, Stories and Reels, YouTube thumbnails and X (Twitter). Drag the frame on the preview to choose what to keep, and zoom in to tighten it. Files are never sent to a server; they are processed only in your current browser.
Choose images and they are processed right in this browser.
Select several and they are all fitted to the same size. Each file can be up to 25 MB.
Pick a recommended size such as Instagram square 1080×1080, portrait 1080×1350 or Stories 1080×1920, then drag the frame on the preview to choose what to keep.
Files are saved in their original format with the size added to the name, bundled as a ZIP when there are several.
If the photo and the target have different aspect ratios, part of it is cropped. Only what is inside the frame on the preview is saved, so drag it until faces or text are inside. It starts in the centre. Choosing a size larger than the original enlarges the photo and may soften it.
See what runs locally in the browserPlatforms do change their recommended sizes and ratios. Instagram, for example, moved its profile grid to 3:4, so 1080×1440 portrait photos are now used too. Check the upload screen's guidance before posting.
See what runs locally in the browserThis tool processes files with your browser's canvas. Files are not sent to an external server for conversion.
Every tool runs inside your browser in the same way.