Compress WebP to 300 KB
300 KB of WebP holds a full-width, high-quality photo. This page converts to WebP and targets just under 300 KB. Everything runs in your browser — nothing is uploaded. Need different dimensions instead? Resize or convert.
Why compress to 300 KB?
Many sites cap images at 300 KB — typically for website images, email and marketplace listings. That leaves room for roughly a 1630×1220 WebP photo.
About 1630×1220 px fits
At medium quality a detailed WebP photo of roughly 1630×1220 pixels lands under 300 KB; at high quality about 1140×850.
WebP stretches the limit
WebP packs about 30% more detail into 300 KB than JPG, but check that the site you upload to accepts .webp files.
12× smaller than a phone photo
A 12 MP phone photo is around 3–4 MB, so it must shrink about 12×. The tool lowers quality first and resizes only if needed.
Quality to expect
At 300 KB, quality is very good. There is room for a sharp, full-screen photo.
Scans and documents
A scanned A4 page of about 1960×2780 pixels usually fits, because text pages compress far better than photos.
Exact limit, checked
300 KB is measured as 307,200 bytes (1 KB = 1,024 bytes), the way most upload forms count it, so the file is never just over.
300 KB at a glance
| Limit in bytes | 307,200 bytes |
|---|---|
| Photo at high quality | about 1140×850 px |
| Photo at medium quality | about 1630×1220 px |
| Photo at low quality | about 2200×1650 px |
| Scanned A4 document | about 1960×2780 px |
| Reduction from a 12 MP phone photo | about 12× |
| Output format | WebP |
| Typical use | Website images, email and marketplace listings |
Compress an image to 300 KB in 3 steps
- Add your image — JPG, PNG, WebP or a phone photo.
- The target is already set to 300 KB. Leave “Remove EXIF metadata” ticked to save extra bytes.
- Click Compress and download a WebP under 300 KB.
New to image compression? Read the full compression guide.
Full-width photos for large screens
Pixel guide: about 2000 pixels wide — sharp across a large laptop or desktop screen.
Portfolios and galleries where people open images full-screen look excellent at this size.
Converting existing JPEGs. Re-compressing an already compressed JPEG loses a little more quality each time. Where you can, convert from the original camera file or PNG.
Animated images aren't handled here; this tool saves still WebP images.
Other file-size targets
Nearby limits — each one opens the compressor already set to it:
Compress by format
Guides and presets for each format:
Compress under a file size
Keeps your image’s format — pick the limit you need:
JPEG under a file size
Frequently asked questions
Should I convert from JPEG or from the original?
From the original when you can. Each round of lossy compression loses a little quality.
How many pixels fit in 300 KB?
For a detailed WebP photo, about 1630×1220 at medium quality or 2200×1650 at low quality. Simple graphics and scans can be much larger.
What quality will a 300 KB photo have?
Very good. There is room for a sharp, full-screen photo. The tool keeps the dimensions where it can and lowers compression quality first, so faces and text stay readable.
Is 300 KB the same as 300,000 bytes?
Not quite. Most forms count 1 KB as 1,024 bytes, so 300 KB is 307,200 bytes. The tool uses the same count, so a file it marks as under 300 KB is accepted.
Should I use JPG or WebP for 300 KB?
JPG is accepted everywhere and is the safe choice for forms. WebP holds about 30% more detail at the same size, ideal for websites that support it.
Why is my file still over 300 KB?
Very large or detailed images may not reach 300 KB by quality alone. Resize it first (for example to 1630 pixels wide) with the resizer, then compress again.
Are my images uploaded anywhere?
No. They are read and compressed by your own browser and never leave your device. You can disconnect from the internet once the page has loaded and it will still work.