Free Bulk Image Resizer
Batch Resize JPG, PNG & WebP — No Uploads, No Watermarks, Instant ZIP Download
or drag and drop your image here
Supports JPG, JPEG, PNG, WEBP, BMP, GIF
Supports JPG, JPEG, PNG, WEBP, BMP, GIF
What Is a Bulk Image Resizer?
A bulk image resizer is a tool that changes the dimensions of many image files at once by applying the same target width, height, or scale percentage to every file in a single batch operation. Instead of opening and resizing each photo individually, you upload up to 100 images, set one set of dimensions, and download the entire batch as a ZIP archive in seconds. PicsSizer's bulk image resizer runs entirely in your browser using the HTML Canvas API and WebAssembly — your files never leave your device, no account is required, and no watermark is added to the output. It supports JPG, PNG, WebP, GIF, BMP, and TIFF input formats with files up to 50 MB each.
Resize Images in Bulk for Any Platform or Workflow
E-Commerce & Online Stores
- Resize product photos for Shopify to 2048×2048 px in one batch
- Prepare Etsy listing images at the required 2000 px minimum
- Bulk resize Amazon product photos to the 1000×1000 px standard
- Create uniform WooCommerce thumbnails across your entire catalog
Social Media & Marketing
- Batch resize to Instagram square (1080×1080) and story (1080×1920) in one run
- Resize an entire Pinterest board to 1000×1500 px optimized pins
- Prepare Facebook ad creatives at 1200×628 px across 50+ images at once
- Resize campaign visuals to platform specs — no repeated manual steps
Photography & Web Development
- Batch export client portrait sessions resized for web delivery (1920 px wide)
- Resize WordPress Media Library uploads to a consistent maximum width
- Convert and resize RAW exports to web-ready JPG or WebP in one pass
- Preserve EXIF metadata and aspect ratio across every image in the batch
How to Resize Multiple Images at Once — 3 Steps
- 1
Upload Your Images
Drag and drop up to 100 JPG, PNG, WebP, or GIF files — or click to select from your device. No account or sign-up required.
- 2
Set Your Dimensions
Enter a target width and height in pixels, or set a percentage scale. Lock the aspect ratio to prevent distortion, or resize freely for custom crops.
- 3
Download as ZIP Instantly
Click Download and get all your resized images packaged in a single ZIP file — no watermarks, no file size limits, no waiting.
The Fastest Way to Resize Multiple Images at Once — Free & Private
Key Features of Our Batch Image Resizer
Resize by exact pixels or percentage with optional aspect ratio lock, so every image in the batch scales proportionally without distortion. Process up to 100 images per session across JPG, PNG, WebP, GIF, and TIFF formats. Output quality is fully adjustable — choose lossless preservation or a compressed setting to reduce file sizes for faster web page load times. All resizing uses browser-native canvas rendering, which means processing starts immediately with no queue, no upload progress bar, and no server dependency. When your batch is ready, download every image in a single ZIP file with one click. The tool works on any device — desktop, tablet, or mobile — with no installation, no plugin, and no account required.
More Free Image Tools
Every tool runs in your browser — no uploads, no account, no cost.
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Compress JPG, PNG, and WebP files to reduce file size without visible quality loss.
Image Cropper
Crop images to any custom aspect ratio or pixel selection — no account needed.
Image Converter
Convert between JPG, PNG, WebP, GIF, and other formats in seconds.
Bulk Image Resizer — Frequently Asked Questions
Answers to the most common questions about resizing multiple images at once online