Compress Image to 300KB: how it works
If a form insists on images under 300KB, guessing JPEG quality settings is frustrating. FileStripe searches for the highest quality that fits under 300KB and, shrinks the dimensions only if quality alone isn't enough.
At 300KB most photos keep enough resolution to look sharp on any screen.
How to compress an image to 300KB
- Add your images.
- They're compressed to 300KB or less automatically.
- Download them, or all as a ZIP.
Features
- Never over 300KBGuaranteed under the target.
- Best quality that fitsAutomatic search.
- HEIC supportediPhone photos work.
- BatchMany at once.
Frequently asked questions
How do I compress a photo to exactly 300KB?
Add it here and it's compressed to just under 300KB. For a different size, use 'Compress image to exact size'.
Is the Compress Image to 300KB free?
Yes. The Compress Image to 300KB is completely free with no sign-up, no watermarks, no daily limits and no premium tier.
Are my files uploaded to a server?
No. FileStripe processes your files locally in your web browser using JavaScript. Nothing is uploaded, so the Compress Image to 300KB is safe for private photos and confidential documents and even works offline once the page has loaded.
Does it work on iPhone and Android?
Yes. The Compress Image to 300KB works in Safari, Chrome, Firefox, Edge and Samsung Internet on phones, tablets and computers. On a phone you can pick files from your photo library or files app and share the result straight to another app.
Last updated · Processing happens locally in your browser.