Resizing twenty product photos one at a time gets old fast. This tool loads every image you drop in and resizes them all to the same target dimensions in one pass.
What Is the Batch Image Resizer?
Batch Image Resizer is one of the tools in WebdevToolbox’s Image & Media category. Upload any number of images, set a target width/height, and download the resized results individually or all at once.
How to Use It
- Open the tool at /tools/batch-image-resizer.
- Click “Upload images” and select multiple files.
- Set the target width and height (aspect ratio can be locked per image).
- Download each resized image, or click “Download all” for the whole batch.
Key Features
- True batch processing — resize dozens of images with one width/height setting.
- Per-image aspect ratio locking — each image keeps its own correct proportions when locked.
- Live preview grid — see every resized image before downloading.
- 100% local — images are processed with the Canvas API and never uploaded anywhere.
When to Use the Batch Image Resizer
- Preparing a batch of product photos for a consistent thumbnail size.
- Resizing screenshots for documentation without opening an image editor per file.
- Quick bulk resizing before uploading to a CMS with size limits.
Try It Now
Open Batch Image Resizer directly from anywhere on the site using ⌘K and typing the tool name.
Part of the Image & Media collection on WebdevToolbox — free, browser-based developer tools with no login required.