FAQ
What is the 3x3 grid crop for?
It slices one image into nine tiles. Uploading them in order to a social feed reassembles the full picture, a common layout trick.
Does cropping reduce quality?
No. Export is lossless PNG, though the file will be larger than the original JPEG. Run it through the image compressor if size matters.
Which aspect ratios are available?
Presets for 1:1, 4:3 and 16:9, plus a free crop with no ratio lock.
About this tool
Two modes for two jobs: crop (free ratio, or locked to 1:1 / 4:3 / 16:9 / 9:16) and 9-grid (slice the whole image into thirds). The crop box is dragged or resized on the preview, and on export its coordinates are converted back to original pixels using the preview scale and clamped to the image bounds — so a small box on screen still exports at full resolution.
Export is always PNG: lossless, transparency preserved, but potentially much larger than the source JPEG (two to three times is common for phone photos). For a smaller file, run the result through the image compressor to JPEG or WebP — that is more useful than piling a format selector into this page.
9-grid divides by integer thirds (the right and bottom slices take the remainder), which suits social-media grid posts. Note that it only slices, it does not crop to square: lock the ratio to 1:1 and crop first if you want square tiles. After switching, tiles appear as thumbnails and clicking one downloads it — this tool does not bundle a ZIP.
Two implicit behaviours: export re-encodes, so EXIF from the original (capture time, camera model, GPS) is not carried over; and the photo's rotation is already applied when the browser decodes it, so whatever orientation you see in the preview is what you get — no manual rotating needed.