Bulk Image Resizer

The Bulk Image Resizer applies one set of size settings to a whole folder of pictures. Product photos for an online shop, images for a blog, screenshots for documentation or a year of holiday photos can all be brought to consistent dimensions in a single pass, and downloaded together as a ZIP. The work is done by your browser on your own computer, so even a large batch never has to be uploaded.

How to resize multiple images at once

1. Select all the files in the file picker (Ctrl+A / Cmd+A in the dialog) or drag a whole selection onto the page. You can keep adding more with the Add button. JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, TIFF and SVG are supported, up to 80 MB per file; each page of a multi-page TIFF is added as its own image.
2. Choose how the size is set: Exact for a fixed width × height (800 × 600 by default), Max to fit every image inside a bounding box without changing its proportions, % to scale everything by the same percentage, or Keep to change only the format or quality.
3. With Exact, decide how differently shaped photos are handled: Fit with background (the default, nothing is cut), Crop to fill with an anchor, or Stretch.
4. Pick an output format and quality, or a target file size in KB that every image should stay under.
5. Watch the list update as each file is processed, then click Download all (ZIP).

Choosing the right mode for a batch

Mixed collections are where bulk resizing usually goes wrong. If your set contains both portrait and landscape photos, Exact with crop will cut heavily into some of them. Max is the safer choice for galleries and websites: with a 1600 × 1600 limit, a landscape photo becomes 1600 px wide and a portrait one 1600 px tall, and nothing is cropped. Use Exact + Fit with background when every file really must have identical dimensions, for example marketplace listings that require square images on white.

Useful batch features

• Don't enlarge smaller images leaves small files at their original size instead of blowing them up.
• The file list shows the original and new dimensions and the new size of every image, plus the total before → after for the whole batch.
• Click any file to inspect it in the before/after comparison; remove files individually or clear the list.
• Rename outputs with a pattern under More options: {name}, {w} and {h} are replaced per file, so photo.jpg becomes photo-800x600.jpg by default. Duplicate names inside the ZIP are numbered automatically.
• EXIF metadata, including GPS location, is removed from every result.

If you mainly want smaller files rather than new dimensions, the bulk image compressor focuses on file size, and the bulk image converter changes formats for many files at once.

Why use this bulk resizer

There is no file-count limit other than your device's memory, no sign-up, no watermark and no waiting for uploads. Because settings are live, you can change the size or format after adding the files and every image is simply re-rendered with the new settings.