How to use Batch Resize Images

Resize many images at once into a single ZIP. Use it when you need a quick result without installing a separate application.

Enter or select the information required by Batch Resize Images.
Review the options before running the tool.
Check the result and copy or download it if needed.

Privacy and limitations

File processing for this tool is designed to run in your browser. Smart2Office does not intentionally upload the selected file to a Smart2Office server. Results depend on the input, browser capabilities and device memory, so review important output before relying on it.

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Make hundreds of images consistent in one go for blogs, e-commerce and social media.

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What is Batch Resize Images?

Resize many images at once into a single ZIP.

Batch Resize Images is part of Smart2Office's suite of free browser-based productivity tools. It is designed to handle an everyday task that would otherwise require installing dedicated desktop software or paying for a subscription service. Open the page, use the tool, close it — nothing to set up, nothing to maintain, and nothing to pay.

The tool runs on any modern device — Windows PC, Mac, iPhone, Android phone or tablet — directly in your web browser. There is no version to update, no operating system compatibility issue, and no licence to renew.

✅ Key Features

Client-side Canvas API processing — images stay on your device
Supports JPG, PNG, WebP, GIF, BMP and SVG
Download results instantly
Works on mobile, tablet and desktop

💼 When to Use This Tool

Optimising photos before uploading to a website or blog
Resizing product images for e-commerce listings
Converting screenshots between formats for different platforms
Preparing images for social media with exact dimensions

Tips for Best Results

For web images, WebP gives the best balance of quality and file size.
JPEG quality of 75–85% is usually indistinguishable from the original at screen sizes.
Batch resize saves significant time when preparing product photos for an online store.
Use the grayscale tool to verify your design has sufficient contrast for colour-blind users.

Technical Details

Input: JPG, PNG, WebP, GIF, BMP, SVG, TIFF, ICO. Processing: browser Canvas API. Output: JPG, PNG or WebP — no codec installation required.

Frequently Asked Questions

Do you upload my images to a server?

No. Image processing uses the browser's built-in Canvas API. Your images are processed locally and never sent to any server.

Which image formats are supported?

Most tools support JPG, PNG, WebP, GIF, BMP and SVG. The accepted and output formats depend on the specific tool.

Will compression reduce visible quality?

At quality settings above 70%, compression is generally imperceptible. PNG compression is lossless — PNG output is always full quality.

Can I process multiple images at once?

Yes. Tools like Batch Resize and Compress Image accept multiple files. Results are packaged in a ZIP file for one-click download.

What is the maximum resolution supported?

There is no hard limit. Very high-resolution images (above 10,000 × 10,000 pixels) may be slower depending on browser memory.

Why should I convert to WebP?

WebP files are typically 25–35% smaller than equivalent JPG or PNG at the same visual quality — ideal for websites and apps.

🔒 Your Privacy & Security — Your images are processed by the browser's built-in Canvas API. No image data leaves your device — everything happens locally. Smart2Office does not track what you process, does not store output files, and does not share your data with third parties. What you create belongs entirely to you.

🗂️ Batch Resize Images