Image resizer for one picture or a whole batch

Resize an image here by choosing the pixel dimensions you need. The tool starts with a maximum width of 1600 pixels and keeps the picture's proportions. A 4000 × 3000 photo becomes 1600 × 1200; a smaller image stays small unless you allow enlargement. Add one picture or several, then save individual files or collect the finished batch in a ZIP. Everything happens on your device.

Pick the resize mode for your job

For a set of pictures going into the same article column, use Width. For a mixture of portrait and landscape images that must fit an upload form's limits, use Fit inside a box. An 800 × 800 box produces an 800 × 600 landscape image or a 600 × 800 portrait image when their proportions are 4:3. It does not turn either one into a square or add blank space around it.

Percentage is useful when every image should shrink by the same factor. At 50%, both sides are half their previous length, so the result has about a quarter as many pixels. That does not promise a file exactly one quarter as large: format, quality and image content also affect the number of bytes.

Keep proportions and control enlargement

The relationship between width and height is the aspect ratio. This tool keeps it automatically; entering a width does not let you accidentally squash a face or stretch a product. The final dimensions are whole pixels, so an unusual ratio may need a one-pixel rounding adjustment.

Smaller originals are not enlarged by default. That matters in a mixed batch: a 600-pixel-wide photo should not silently become 1600 pixels wide just because the other photos are bigger. Turn on Allow enlarging smaller images if the destination requires a larger file in pixels. Enlargement can make a picture appear softer because the missing detail has to be estimated.

For a circular avatar or square framing, use the circle crop tool. Resizing here keeps the whole picture; cropping chooses which part stays in the frame.

Choose the output format

PNG is selected initially. It keeps transparent areas and avoids another lossy encoding pass, making it useful for logos, diagrams and cutouts. Resizing still changes the image's pixels; lossless output does not undo the detail removed by making the picture smaller.

JPG usually suits photographs when the receiving app needs that format. Choose white or black behind any transparent areas. WebP also supports transparency and has a quality slider, which can make it useful for website images. Check that the app or form receiving the file accepts it.

The image compressor explains the quality setting and optional file-size target. Both controls are available here too. If only the file extension needs changing, the PNG to JPG converter starts with original dimensions instead.

Check the saved file before using it

Each result shows the original dimensions, output dimensions, original file size and actual encoded file size. Preview opens the output you will download. Use Actual pixels to inspect lettering, hair or fine edges without fitting the entire image into the preview window; scroll around a large picture as needed.

Changing a setting creates fresh results from the original files you selected. It does not repeatedly shrink an already resized copy. The originals on your device are untouched. Outputs get matching names, and duplicates receive a number so a ZIP cannot overwrite one picture with another.

The saved files omit the source's camera, date and location metadata. Keep your originals if that information matters. GIF and animated inputs become still images, and unusually large pictures may be reduced before resizing to fit browser memory; the result row calls out that reduction.