Drag the image onto the folder.
JPEG, PNG, WebP, AVIF or HEIC. Up to 50 at a time. Or pick from Finder, Photos, anywhere on your device.
Set exact dimensions, lock the ratio, pick Lanczos3 or Mitchell. Watch a real-time before/after — then download. No upload, no account, no blur.
Zero files uploaded · Runs on your CPU in a Web Worker · No account, no watermark, no nonsense.
I've tried five different online resizers. This is the only one that doesn't turn my product photos into soft blurs. Lanczos3 is a real difference.
Batch resized 80 photos for a client deck in under 3 minutes. Aspect ratio locked perfectly the entire time. Nothing uploaded anywhere.
The before/after preview is so useful. I can compare at a glance whether the output still holds detail. No other free tool does this client-side.
Cover / Contain / Fill modes saved my workflow for creating social thumbnails. Exactly what I needed and it stays in the browser.
I process screenshots for documentation every week. This tool respects retina ratios, gives me exact pixel control, and runs offline. Perfect.
I resize documentation screenshots every week. The exact pixel control and ZIP export save me a lot of time compared to doing it manually.
Switched from Photoshop "Export As" for quick resizes. Lanczos3 output is indistinguishable and I save minutes every day. Bookmarked forever.
Resized my entire portfolio to 1920px wide in one batch. All still look crisp at retina. The ZIP download is a thoughtful touch.
I've tried five different online resizers. This is the only one that doesn't turn my product photos into soft blurs. Lanczos3 is a real difference.
Batch resized 80 photos for a client deck in under 3 minutes. Aspect ratio locked perfectly the entire time. Nothing uploaded anywhere.
The before/after preview is so useful. I can compare at a glance whether the output still holds detail. No other free tool does this client-side.
Cover / Contain / Fill modes saved my workflow for creating social thumbnails. Exactly what I needed and it stays in the browser.
I process screenshots for documentation every week. This tool respects retina ratios, gives me exact pixel control, and runs offline. Perfect.
I resize documentation screenshots every week. The exact pixel control and ZIP export save me a lot of time compared to doing it manually.
Switched from Photoshop "Export As" for quick resizes. Lanczos3 output is indistinguishable and I save minutes every day. Bookmarked forever.
Resized my entire portfolio to 1920px wide in one batch. All still look crisp at retina. The ZIP download is a thoughtful touch.
Every resampling algorithm is a mathematical kernel — a weighted average of neighboring pixels. The choice changes everything: blocky staircases, soft halos, or clean edges. We default to Lanczos3 because it is the gold standard for downscaling photos.
You want 1080×1080 from a 16:9 photo. The pixels don't divide cleanly. Three different answers exist — and the right one depends entirely on what the image is for.
Drop your file, enter a target size, take the pixels home. Everything runs in a Web Worker on your device — never our server.
JPEG, PNG, WebP, AVIF or HEIC. Up to 50 at a time. Or pick from Finder, Photos, anywhere on your device.
Enter width, height, or a percentage. The chain keeps your ratio locked. Hover to watch a 4K photo resize to 1080p in real time.
One click. EXIF stripped by default. Single file or ZIP for batches — never an email, never a watermark, never an account.
Not because the others are bad — because they don't have to be your default.
Canvas API and a WebAssembly resampling kernel. Open DevTools → Network and you will see zero outbound requests during a resize. Your images stay on your device from start to finish.Or paste a URL — we will fetch it client-side and run the same Lanczos3 pipeline. Nothing routes through our servers.