Compress JPG to 300KB
Shrink your JPG to 300KB or less in seconds — right in your browser.
Drag & drop your image here, or
Reduces width and height so the image stays sharp at the target file size.
When 300KB is the right target
300KB is less about upload limits and more about deliberate balance. It is the size people choose for blog images, product photographs and portfolio pages — light enough that a page carrying several of them still loads quickly, detailed enough that they hold up on a large screen. Some document portals also use 300KB for high-resolution scans where fine print has to stay legible.
What to expect at 300KB
At 300KB, as a rough guide:
| Starting file | Typical result |
|---|---|
| 12MP phone photo | around 1400 × 1050 px |
| Product photo on a white background | often keeps full resolution |
| Detailed landscape or crowd scene | around 1200 × 900 px |
Photographs on plain backgrounds — products, headshots on white — reach far higher resolutions at 300KB than busy scenes do, because flat areas cost almost nothing to store.
How it works
- Select your file using the box above — it stays on your device.
- We compress it in your browser, adjusting quality and dimensions until it fits under 300KB.
- Download the result — your original file never leaves your device.
What to do next
- If this is going on a website, the page-budget guidance is more useful than a per-image number. Compress Image for Website →
Frequently asked questions
Is 300KB too large for a web page?
It depends how many you use. One 300KB hero image is fine. Twelve of them on one page is 3.6MB and will damage your Largest Contentful Paint score. Budget per page, not per image.
Should I use WEBP instead at this size?
WEBP typically delivers the same visible quality at 25–35% smaller file sizes. Compress here first, then convert the result if your platform supports WEBP.
Does compression preserve EXIF data?
No. The image is re-encoded, which drops metadata including camera settings and GPS coordinates. For anything you publish that is usually what you want.
Why did my transparent PNG come back with a white background?
JPEG has no transparency channel, so transparent areas are filled with white. If transparency matters, keep the file as PNG or WEBP rather than setting a KB target.