Bulk Resize Images Free - Online Batch JPG & PNG Resizer

Bulk Image Resizer & Converter

Resize, convert, and optimize multiple JPG, PNG, and WebP images at once. Set your dimensions and download them all in a ZIP file.

1. Upload & Configure

Uploaded Images

Upload images to see them here.

How to Bulk Resize Images Online

  1. Drag multiple image files (JPG, PNG, WebP) or click to upload them.
  2. Your images will appear in the "Uploaded Images" panel. By default, all are selected.
  3. Click on an image to deselect it. Click again to re-select it. Use the "Select All" / "Deselect All" buttons for quick actions.
  4. Choose your resizing method: "Pixels" for specific dimensions or "Percentage" for scaling.
  5. (Optional) Select an output format (like JPG or WebP) and adjust the quality.
  6. Click the "Resize Selected Images" button to start the batch process.
  7. The panel will update to show "Resized Previews". You can download images individually or click "Download All as ZIP".
  8. Click "Start New Batch" to clear everything and begin again.

Frequently Asked Questions

How does "Maintain aspect ratio" work with bulk images?

When this is checked, each image is resized to fit *within* the maximum width and height you specify, without being stretched or distorted. For example, if you set max dimensions of 800x600, a wide landscape image might become 800x450, while a tall portrait image might become 450x600. This ensures no image is distorted.

Will I lose quality when resizing?

Making images smaller (downscaling) generally preserves quality very well. Making images larger (upscaling) will always result in some loss of quality. When converting to JPG or WebP, you can use the "Quality" slider to balance file size and visual quality. Higher quality means a larger file size.

What is the maximum number of files I can upload?

There is no strict limit set by the tool itself. However, performance depends on your computer's memory (RAM) and processor. For best results, we recommend processing images in batches of 50-100 at a time, especially if the files are very large.

Is this resizing process secure?

Yes, 100% secure. This tool uses JavaScript to perform the resizing directly within your web browser. Your images are never uploaded to a server, guaranteeing your privacy and data security.

The Ultimate Time-Saver: Why Our Bulk Image Resizer Actually Rocks

Let’s be honest: dealing with a mountain of images and resizing them one. at. a. time. Terrible. Honestly, I’d rather watch paint dry. Whether you’re slapping together a massive gallery for your website, cranking out product pics for an online shop, or just need a bunch of images shrunk down before your phone explodes, our tool knocks out that headache for you. Just toss ’em in, let it rip, and boom—you’re done before you can say “Photoshop who?”

Batch Image Resizing? Total Game-Changer

Imagine trying to prep two dozen pics for your blog layout so they don’t slow it down to a crawl, or get your product photos looking crisp and matchy-matchy (because hey, nobody likes that rogue thumbnail ruining your shop’s vibe). Our batch resizer’s your get-out-of-jail-free card. Convert a whole damn folder of PNGs to JPGs—websites’ll load so much faster. Or maybe you just wanna share a big vacation album without your friends burning through their data caps: drop ‘em in, downscale once, done. No more opening, resizing, saving. Repeat. Ugh.

What’s better? They’ll all follow the same rules, so your gallery looks pro and slick. None of that “some big, some small, some awkwardly stretched” nonsense.

Getting Nerdy: Resize Controls That Actually Make Sense

Here’s where the “wow, they actually thought of that!” moment comes in. You get two modes: Percentage (just chop your images by half, or whatever feels right) and Pixels (because sometimes you really do need everything to fit inside a certain box—looking at you, blog headers).

Most clutch feature? That “maintain aspect ratio” box. It’s basically idiot-proofing your resizing. So if you want 1200x800, it’ll make stuff fit *within* those dimensions, not look like someone squished your dog. Horizontal? Vertical? Either way—every photo comes out looking just as it should. No weirdly stretched heads allowed.

Privacy First, No Weird Uploads—Seriously

Here’s what freaks me out about most online tools: “Upload all your images here, promise we won’t do anything weird!” (Yeah, right.) Not with us. Nope.

Every single thing happens right on your own machine, in your browser. No uploading, no sending your baby photos to some unknown server farm. When it’s done, you just get a handy ZIP file—and that’s it. No one else touches your stuff. No creepers snooping around your photos. Just resized, ready-to-go images, safe and sound on your desktop.

End of story. Grab your zip, get on with your day, and enjoy a world where image resizing doesn’t suck.