Bulk image resizer
Batch resize, convert and compress hundreds of images at once — free and right in your browser. No upload, no account, no watermark.
100% free — images are processed on your device and never uploaded.
Resize a whole folder in three steps
Batch upload your images
Drag in as many images as you like — they stay on your device, fully private.
Choose a preset or custom size
Pick a Shopify, Amazon, Etsy or social preset, or set an exact size, max dimensions, or percentage.
Download every resized image
Get the whole batch back as a single ZIP, ready to upload to your store.
Built for every place you publish
Marketplace-ready presets, or your own exact size.
Marketplace specs
One-click presets for Shopify, Amazon, Etsy and eBay.
Faster web pages
Compress and convert to WebP to shrink file size.
Social media sizes
Resize for Instagram, Facebook, Pinterest and X in a single batch.
Any custom size
Set exact width and height, a max size, or scale by percentage — crop, pad or stretch.
Why resize images in bulk?
One upload, the whole batch done — instead of editing images one by one.
E-commerce sellers
Batch resize a whole product catalog to Shopify, Amazon and Etsy sizes in minutes, not hours.
Web & blog
Compress and convert images to WebP in bulk to shrink file size and speed up your pages.
Social & content
Resize a folder to Instagram, Facebook, Pinterest and X dimensions in one go.
Image sizes for popular marketplaces & social
Common target sizes — pick the matching preset above, or set exact dimensions.
| Platform | Recommended size |
|---|---|
| Shopify | 2048 × 2048 px |
| Amazon | 1600–2000 px (min 1000) |
| Etsy | 2000 px longest side |
| eBay | 1600 px longest side |
| 1080 × 1080 px | |
| 1200 px wide | |
| 1000 × 1500 px | |
| X / Twitter | 1600 px wide |
These map to the one-click presets in the tool above.
A bulk resizer that respects your files
100% free, no sign-up
Private — no upload, runs in your browser
Resize hundreds of images at once
JPG, PNG & WebP output
Quality & compression control
One-click ZIP download
Explore the toolkit
Bulk image generator
Generate hundreds of AI product images from a CSV.
OpenBulk image compressor
Compress images in bulk — smaller files, same quality, free in your browser.
OpenBulk image upscaler
Increase image resolution in batches.
Background remover
Remove backgrounds from product photos in bulk.
JPG, PNG or WebP: which format should you use?
Pick the right output format for smaller files and sharper images.
JPG
Best for photos. Lossy compression gives the smallest files — ideal for product shots and marketplace listings.
PNG
Best for logos and graphics with transparency. Lossless, so no quality loss — but larger files.
WebP
Best for the web. Around 25–35% smaller than JPG at similar quality — great for page speed.
Tip: convert to WebP for fast web pages, JPG for photos, and PNG when you need transparency.
Bulk image resizer FAQ
Is it really free?
Yes — completely free, with no sign-up, no account and no watermark.
Are my images uploaded anywhere?
No. Everything runs in your browser on your own device, so your images never leave your computer.
How many images can I resize at once?
As many as your browser can handle — typically hundreds. Very large files use more memory, so huge batches may be slower.
What formats can I export?
Keep the original format, or convert everything to JPG, PNG or WebP. You can also adjust quality to reduce file size.
Will resizing reduce quality?
Downscaling uses a high-quality resampler, so images stay sharp. Upscaling is off by default — turn on "Allow upscaling" if you want to enlarge images toward a target size.
Do I need to install anything?
No. It runs in any modern browser — nothing to install and nothing to sign up for.
Can I resize images for a specific marketplace?
Yes — one-click presets cover Shopify, Amazon, Etsy, eBay and social platforms, sizing each batch to that platform's recommended dimensions.
What's the difference between crop, pad and stretch?
In Exact size mode, Crop fills the frame and trims the overflow, Pad fits the whole image and adds padding, and Stretch forces the exact dimensions. Crop is best for uniform thumbnails.
Can I convert JPG to WebP or PNG in bulk?
Yes. Pick an output format — JPG, PNG or WebP — and a quality level. WebP is smallest for the web; PNG is lossless.
Can I make small images larger?
By default we only downscale to keep images sharp, but you can turn on "Allow upscaling" in Max or Preset mode to enlarge toward a target size.