Lilacpane / FREE PRACTICAL TOOL

Batch image resizer

Resize images by longest edge, width and height bounds or percentage. Keep proportions without cropping or stretching. Process PNG, JPEG and WebP locally.

Static JPEG, PNG and WebP. Up to 20 files, 20 MB each and 80 MB total. Inputs must be within 16 megapixels and 8,192 pixels per side.

Images stay in this browser and are not uploaded. Refreshing or closing the page clears your selection.
Processing settings

Proportions are preserved without cropping or stretching. Small images stay at their original size unless enlargement is allowed. Output sides are limited to 4,096 pixels.

Not always. Size depends on content, format and quality. Lower quality may lose detail. Conversion re-encodes pixels and may remove metadata or change colour appearance.

    How to use

    1. Choose images

      Select one or more static images or drag them into the tool.

    2. Set options and process

      Choose a resize method and output format.

    3. Preview and download

      Review the actual output previews, then download individual images or one ZIP.

    Resize several images without cropping

    Use the longest edge for a consistent maximum size, a bounding box to fit inside a website image slot, or a percentage to scale a whole batch. These modes preserve proportions; they do not crop images into an exact square.

    Example source: 2400 × 1600 pixels

    Longest edge

    1200 pixels

    Output size1200 × 800

    Fit within a box

    1200 × 1200 pixels

    Output size1200 × 800

    Percentage

    50%

    Output size1200 × 800

    All three settings produce 1200 × 800 pixels for this example. Portrait images keep their own proportions. Smaller originals stay at their original size unless you enable enlargement.

    Choose PNG to preserve transparency, or choose a background for JPEG. Resizing changes pixel dimensions; a smaller file size is not guaranteed. Use the image compressor when file size is your main goal.

    Common questions

    How do PNG and JPEG handle transparency?

    PNG and WebP can retain transparent areas. JPEG requires a solid background, using your selected colour.

    Will resizing crop or stretch the image?

    No. Images are scaled proportionally to a longest edge or bounding box. Bounds are maximums, not a forced width and height.

    Are HEIC, GIF and animations supported?

    This version supports static JPEG, PNG and WebP only. HEIC, GIF, SVG and animated images are not supported. If your browser cannot encode WebP, select PNG or JPEG.

    Will converted files be smaller?

    Not always. Size depends on content, format and quality. Lower quality may lose detail. Conversion re-encodes pixels and may remove metadata or change colour appearance.

    Continue creating product visuals

    Add device frames, photo frames, backgrounds and text in the app to create image and video compositions.

    Continue in the app ↗More practical tools ↗