Compress Image to 300KB

Make a photo 300KB or smaller for forms and uploads.

Your files are processed on your device and are never uploaded.

Need a photo that is 300 KB or smaller? This free tool compresses your image to fit under 300 KB in one click. It keeps the best quality that the limit allows, so your picture stays clear and the upload form accepts it the first time.

At 300 KB a photo still looks sharp on any screen, which makes this size ideal for website and blog images, online shop listings, email attachments and document uploads that allow a little more space.

How to Compress an Image to 300KB

Choose your image: Click Choose image, drag a photo onto the box or paste it. JPG, PNG and WebP all work.
Check the size: The target is already set to 300 KB. You can change it if your form asks for something different.
Click Compress image: The tool tries several quality levels and keeps the best one under 300 KB.
Download: See the new file size and preview, then save the image and upload it.

Tips for the Best Result at 300KB

For web pages, a width of 1200–1600 pixels is plenty – resize first and the photo will look even better at 300 KB.
Screenshots with text compress better as WebP than JPG.
Reduce several photos one after another – there is no limit on how many you can process.

Why Use ShrinkBee to Compress to 300KB?

Always under the limit: The result is guaranteed to be 300 KB or less – no more trial and error.
Sharpest possible picture: The tool picks the highest quality that fits, rather than a fixed low setting.
Private: Your photo is processed in your browser and never uploaded to a server.
Free with no limits: No sign-up, no watermark, compress as many photos as you need.

Other Sizes

Reduce Size in MB Compress to 5KB Compress to 10KB Compress to 15KB Compress to 20KB Compress to 25KB Compress to 30KB Compress to 40KB Compress to 50KB Compress to 60KB Compress to 70KB Compress to 80KB Compress to 90KB Compress to 100KB Compress to 150KB Compress to 200KB Compress to 500KB Compress to 1MB Compress to 2MB

Photo too small for the form instead? Use Increase Image Size in KB.

Frequently Asked Questions

How do I compress an image to 300 KB?

Choose your photo, keep the target at 300 KB and click Compress image. The tool tries several quality levels and gives you the best-looking version that is 300 KB or smaller, ready to download.

Will the photo be exactly 300 KB?

It will be 300 KB or slightly less – never more. Upload forms check a maximum size, so a file just under the limit is always accepted.

Will my photo lose quality?

At 300 KB most photos look practically the same as the original on screen. The tool always picks the highest quality that fits.

What if my photo is already smaller than 300 KB?

Then it already meets the limit. If your form also has a minimum size, use Increase Image Size in KB to make the file bigger without changing the picture.

Which image formats can I compress?

JPG, JPEG, PNG and WebP. The result is saved as JPG, or WebP if you choose it. For iPhone HEIC photos, convert them first with HEIC to JPG.

Is Compress Image to 300KB free to use?

Yes. Compress Image to 300KB is completely free, with no sign-up, no watermark and no limit on how many times you use it.

Are my files uploaded to a server?

No. Your files are processed directly in your web browser on your own device. Nothing is uploaded or stored, and the file is gone from memory when you close the tab.

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