Extend image canvas
Add independent padding around an image without cropping it, choose the image anchor, and export with a transparent or solid-colour canvas.
Resize image
Resize JPG, PNG, WebP, and AVIF images in batches by dimensions, percentage, long or short edge. Fit, crop, pad, prevent enlargement, and create multiple sizes locally in your browser.
Local processing: your source images stay on this device.
Professional image resizer
Set it once, then create every size you actually need
Resize by width, height, percentage, long edge, short edge, or an exact box. See each file’s real output dimensions and create several sizes in one run.
- Private by default
- Images stay in this browser
- Batch input
- Images, folders, and ZIP files
- Multi-size export
- Create responsive variants together
Size preview
Choose an image to see its source details and projected dimensions.
Output forecast
Calculated for this image; every queued file is sized from its own proportions.
Choose an image to see its source details and projected dimensions.
Resize settings
Choose a sizing method, then decide how the image should fit.
Target dimensions
This plan enlarges the selected image. Inspect sharpness after export.
Create additional sizes
Add the current setup or a common preset to create every variant in one pass.
How to use
Resize image — Resize images online
Resize JPG, PNG, WebP, and AVIF images in batches by dimensions, percentage, long or short edge. Fit, crop, pad, prevent enlargement, and create multiple sizes locally in your browser.
Resize by pixels, percentage, width, height, or edge
Enter an exact width and height, or set only the width, height, percentage, longest side, or shortest side. Landscape and portrait files are calculated independently from their own aspect ratio, and the projected dimensions are shown before processing.
Fit, crop, pad, or stretch
When the source and target proportions differ, fit the whole image inside the box, crop centrally to fill it, add a chosen padding colour, or deliberately stretch to exact dimensions. Enlargement is disabled by default because interpolation cannot recover missing detail; switch it on only when the workflow requires it.
Batch resizing and multiple outputs
Choose several images, a folder, or a ZIP archive. Add responsive widths such as 640, 1280, and 1920 pixels, percentage variants, or long-edge sizes, then generate thumbnails, content images, and large assets in one pass. Download one result, selected results, or a ZIP.
High-quality resampling and pixel art
Natural mode uses high-quality resampling for general photography and graphics. Crisp mode reinforces edges during downscaling, while Pixel art uses nearest-neighbour scaling to avoid blurred blocks. The tool keeps the source format and leaves compression and conversion to their dedicated workspaces.
Local processing and metadata
Images are decoded and resized in the current browser and are not uploaded by this tool. Re-sampling produces a clean file without EXIF or GPS metadata while originals remain untouched. If enlargement protection means no pixel change is needed, the original file is kept byte for byte. Large images and batches can require substantial device memory.
Comments
0