Resize many images at once inside your browser — pick a size, keep the proportions and download everything as one ZIP. Nothing is uploaded.
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Resize many images at once inside your browser — pick a size, keep the proportions and download everything as one ZIP. Nothing is uploaded.
Pick a width, keep the proportions, and every image you select is resized right inside your browser — then downloaded together as one ZIP. Nothing is uploaded.
Select up to 10 images, enter a target width in pixels (and optionally a max height), choose JPG, PNG or WebP with a quality level, then press Run. Your browser decodes each image, scales it down to fit inside the requested size, and packages everything into a single resized-images.zip download.
With just a width, the height follows the original ratio automatically. Give both a width and a height and every image is scaled down to fit inside that box — never stretched, never cropped. Images that are already smaller than the target are never upscaled, so quality is never invented.
Decoding, resizing, re-encoding and even the ZIP archive are all built locally on your device. Your pictures are never uploaded, cached or seen by any server, which also means there is no upload wait and no size queue.
JPG is the compact default for photos, PNG keeps transparency, and WebP offers excellent compression for the web. The quality slider controls JPG and WebP only — PNG output is always lossless.
Add a suffix such as -resized so the resized files never clash with the originals: photo.jpg becomes photo-resized.jpg inside the archive.
No account, no watermarks and no server queue. Resize as many batches as you want, whenever you want.
No. The whole resize runs inside your browser — decoding, scaling, encoding and the ZIP are all local. Your pictures never leave your device.
Up to 10 images per run. Each image is capped individually and the total batch must stay under 15 MB so everything fits comfortably in browser memory.
Always. With a width only, the height follows the original ratio. With both a width and a height, each image is sized to fit inside that box without stretching or cropping.
No. Images smaller than the requested size are left at their original dimensions — the tool never upscales.
You can resize JPG, PNG, WebP, GIF and BMP files and re-encode them as JPG, PNG or WebP.
No. The archive is a standard ZIP readable by any unzip tool on Windows, macOS and Linux. Because the images are already compressed, the ZIP stores them without extra compression — fast to create, nothing lost.
Bulk Image Resizer resizes several images in one go, entirely inside your browser. Choose how big they should be, pick the output format and quality, and download every resized picture as a single ZIP. Your files never leave your device.
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