Image Resizer

Honest answer: downscaling discards pixels by definition, and JPG or WebP output is re-encoded, which is lossy. What this tool does is keep the loss invisible: multi-pass high-quality scaling instead of one abrupt jump, quality control for lossy formats, and a true no-change path, when dimensions and format stay identical, your original file is kept byte-for-byte with metadata intact. Tools promising fully lossless resizing are describing something that does not exist.

Presets like 1080x1080 have a fixed shape your photo usually does not match. In Fill mode the image covers the whole preset and the overflow is cropped; the preview shows exactly which area survives, and you move the kept area by dragging the focal dot, using arrow keys, or typing focus percentages, per file. Fit mode instead shrinks the whole image inside the box without cropping, and Stretch distorts to the exact size. Nothing is cut without you seeing it first.

Up to 20 files, 80 MB and 50 megapixels per image, and requested dimensions up to 8192 px. The megapixel limit is a memory guarantee: a decoded image costs width x height x 4 bytes plus working copies, so one 100 MP panorama would need roughly 800 MB and can freeze a phone browser. Files over the limits are refused with the math shown, instead of crashing your tab.

JPG stays JPG, PNG stays PNG, WebP stays WebP, re-encoded at your quality setting when dimensions change. GIF is the exception: resizing produces a still PNG, and animated GIFs are flagged and require an explicit "first frame" confirmation instead of being silently flattened. The resolved output format is shown on every row before you download.

JPG has no alpha channel, so transparent areas must become a color. This tool composites them onto a background you choose, white by default, black or any custom color, instead of leaving the result to browser-dependent black. The matte is applied in the actual output, not just the preview.

Nothing is uploaded; decoding, cropping, scaling and encoding all run in your browser. Orientation from EXIF is applied to the pixels first, so phone photos stay upright. Re-encoded outputs have EXIF metadata removed, including GPS location and capture date, which is stated in the tool because it matters both ways: privacy win, but keep your originals if you need the metadata. The no-change path keeps the original file untouched.

Because upscaling is off by default: enlarging a small image cannot add detail, only blur. When your source is smaller than the preset, the tool produces the largest sharp result at the preset's aspect ratio and labels it, instead of silently inflating pixels. Tick "Allow upscaling" if you need the exact size regardless.