Batch Image Resizer
Bulk-resize dozens of images at once: fit them within a maximum width and height (aspect ratio preserved, never upscaled) or scale by percentage, then download the whole set as a ZIP. All local, no uploads.
How to use Batch Image Resizer: Open Batch Image Resizer — no sign-up or software download is required. Drag and drop your file(s) into the tool, or click to browse and select them from your device. Choose any options you need, such as order, quality, page range or output format. Everything runs inside your browser, so your data never leaves your device.
Click to browse, drop, or paste images
Drop a whole folder of images. One click resizes them all and downloads a ZIP. Processed locally.
Bulk-resize dozens of images at once: fit them within a maximum width and height (aspect ratio preserved, never upscaled) or scale by percentage, then download the whole set as a ZIP. All local, no uploads. Batch Image Resizer is a free, browser-based tool in the Filevane image tools collection — there is nothing to install, no account to create and no watermark on your results. It works on desktop, tablet and mobile, and because the work happens on your own device it stays fast even with large inputs.
How to use Batch Image Resizer
- Open Batch Image Resizer — no sign-up or software download is required.
- Drag and drop your file(s) into the tool, or click to browse and select them from your device.
- Choose any options you need, such as order, quality, page range or output format.
- Click the action button and let the tool process everything locally in your browser.
- Download the finished file. Your originals are never changed or uploaded.
Why use Batch Image Resizer?
- 100% free with no limits, no sign-up and no watermarks.
- Private by design — your files are processed in your browser and never uploaded to a server.
- Fast and lightweight, with instant results even on a phone or a slow connection.
- Works everywhere — any modern browser on Windows, macOS, Linux, Android or iOS.
- Part of a full image tools suite, so related batch resize tasks are one click away.
Is it private and secure?
Your privacy is built in. Batch Image Resizer does all processing on your own device using client-side code, so your files are never transmitted, stored or seen by anyone — including us.
Network activity: none. Nothing is sent and nothing is fetched. This tool makes no network request at all once the page has loaded — which is why it keeps working if your connection drops.
You do not have to take that on trust — our privacy proof page publishes the Content-Security-Policy that enforces it, lists every third party it permits, and shows how to verify the whole claim yourself.
Learn more
Image Optimization: Compress, Resize and Convert — Faster pages and smaller files start with good images. Learn how to compress, resize and convert images without wrecking quality.
Frequently asked questions
How many images can I resize at once?
As many as your device can hold in memory — dozens or hundreds. They are processed one after another and packaged into a single ZIP.
Will small images be enlarged?
No. ‘Fit within max size’ only ever shrinks images; anything already smaller than the limit is kept at its original size to avoid blurriness.
Which output format should I use?
WEBP gives the smallest files at good quality for the web; keep PNG for graphics that need transparency, or JPEG for maximum compatibility.
Related tools
See all free image tools or browse the full tool catalogue.