Image Compressor

Shrink image files without making them look bad. Batch process a whole folder.

Drop images here, or try the example 1 image

Image Preview

test-image.jpg 0 B image/jpeg

Compression Settings

Quality: 70%

Lower quality = smaller file

Quality Presets

Max Dimensions

×

Images larger than these dimensions will be resized

Format Options

Preserve EXIF metadata

Compression Tips

• JPEG: Best for photos with lots of colors
• PNG: Best for graphics with few colors or transparency
• WebP: Modern format with good compression
• Lower quality = smaller file but softer details
• Capping dimensions makes a big difference on large images
• Converting PNG photos to JPEG can cut size by 50-80%

Why People Use PixDuplicate's Compressor

Actually Shrinks the File

Cuts file sizes by 40 to 80 percent depending on the image and how aggressive you want to be. The tool shows you exactly how much you saved.

You Control the Quality

Slide the quality up or down and see the result before you commit. Presets for when you just want a quick answer.

Compress a Whole Batch

Apply the same settings to a folder of images in one pass. Useful when you've got a gallery to prep.

Nothing Gets Uploaded

Everything runs in your browser. Your images never leave your device—no servers, no cloud.

Download Everything at Once

Grab all your compressed images as a ZIP so you're not downloading them one by one.

Convert When It Helps

PNG photos can shrink 50 to 80 percent just by saving as JPEG. The tool suggests it when it makes sense.

How the Compressor Works

Making files smaller—without sending them anywhere

Step 1: Add your images

Drag and drop files, browse for them, or paste an image URL. Supports JPEG, PNG, WebP, and BMP up to 100MB each.

Try the example image first if you just want to poke around before uploading anything of your own.

Step 2: Set your compression

A few levers to pull:

Quality slider: anywhere from 5% up to 100%—lower means smaller file

Max dimensions: cap the width and height to shrink big images

Convert PNG to JPEG when the image is a photo—big savings

Strip EXIF metadata if you don't need camera info or GPS in the file

Step 3: Compress one or all

Depends on what you're doing:

Single image: tweak the settings for each one individually

Batch: apply the same settings across a whole folder

Presets: jump to a common quality level instead of fiddling

Preview: check the before-and-after before you download

Step 4: Download

Once done:

See exactly how much smaller each file got, in percent and in bytes

Compare the original and compressed versions side by side

Download individual files or the whole batch

Grab everything as a ZIP if you did a batch

Tip: If you've got a folder of product photos or a photo gallery, set the quality once and hit 'Compress All.' Way faster than doing them one by one.

Your Images Stay on Your Device

Unlike other online compressors, PixDuplicate does all the work locally in your browser. That means:

Your images never leave your device

No uploads, no cloud processing

No sign-up or personal info needed

Completely free with no limits

No watermarks added to your compressed images

Works offline after the page loads

What Users Are Saying

Developers, designers, and photographers use PixDuplicate to keep their files small

4.9

Based on 512 reviews

Wade Corrigan

"Rebuilt a client's photography site last month and ran every gallery image through this first. Dropped the total page weight by about 70%. Did the whole thing in one sitting. Saved me from installing any desktop software."

11/8/2026

Talia Bergman

"The before-and-after preview is what I keep coming back for. I can see exactly where the quality starts falling off and stop right before it matters. My portfolio is now a fraction of the size and I can't tell the difference."

4/21/2024

Preston Vidal

"Does what it says. I batch compress a folder of screenshots for docs every week and it's been reliable. Would be nice if the quality preset saved between sessions—I always use the same 70%. Minor gripe."

9/13/2025

Junia Halloran

"Solid for JPEGs, but PNGs were hit or miss depending on the image. The tool recommends converting to JPEG which helps a lot, but I lose transparency. Fine for photos, not for logos. Still use it weekly."

6/30/2027

Kieran Blackwood

"I ship a lot of email campaigns and attachments are always a headache. Compress, drop the dimensions a bit, done. Nothing leaves my machine either, which is non-negotiable when I'm working with NDA'd client assets."

2/17/2025

Marisol Duarte

"Ran 400 product shots through this and averaged a 62% size reduction. The batch mode handled all of them without choking. Would be five stars if it showed an estimated output size before processing, but the actual results were on point."

7/25/2026

Common Questions

How much smaller will my files actually get?

Depends on the image and your settings, but 40 to 80 percent is typical for photos. PNGs with sharp edges and limited colors compress less than that—say 20 to 60 percent. The tool shows you the exact before-and-after before you download.

Will I be able to see the quality loss?

Depends on how aggressive you are. At 70 to 85 percent quality, most people can't tell. Below 50 percent, you'll start noticing softer details. The preview lets you check for yourself before committing.

Why does converting PNG to JPEG help so much?

JPEG handles photos better—millions of colors, gradients, natural scenes. PNG is designed for graphics with flat colors and transparency, which is why a photo saved as PNG is much bigger than it needs to be. Converting a photo from PNG to JPEG can cut the size by 50 to 80 percent with barely any visible difference.

Is there a file size limit?

Up to 100MB per image. No strict limit on how many you process, but very large batches can slow your browser down. Batches of 20 to 30 images work best.

What formats are supported?

JPEG, PNG, WebP, and BMP. You can output to any of those. WebP usually compresses best, but it's not universally supported by older software.

Should I strip the EXIF data?

If you don't need camera settings, GPS coordinates, or timestamps in the file, stripping EXIF shaves a bit off the file size and removes personal info. Good habit before posting anything publicly. If you need the metadata for archiving or cataloging, leave it in.

Can I target specific sizes for web or email?

Yes. For web, aim for 70 to 85 percent quality with a reasonable max dimension (say 1920px wide for hero images). For email attachments, 50 to 70 percent is usually enough and keeps attachments under most size limits.

How does batch compression work?

Upload multiple images, set your quality and dimension preferences once, then hit 'Compress All.' Every image gets processed with the same settings. Download everything as a ZIP when it's done.

Does it work on mobile?

The tool runs in any modern browser, so yes. But compressing a lot of images or very large files is faster on a desktop—phones have less processing power.

Is there a limit on how many images I can compress?

No. Compress as many as you want. No hidden caps, no paywall, no watermarks.