Compress Image to 300 KB — Free & Online
Reduce your photo to around 300 KB to keep detail high while staying light enough for the web.
- 100% Private
- No Upload
- Free Forever
Drop your image here or click to upload
JPG, PNG or WEBP. Your image never leaves your device.
Choose a target size
Finding the best quality for your target size…
This is happening on your device — no upload.
Who needs a 300 KB image?
300 KB is for images where detail genuinely matters — architectural photographs, artwork, group shots where individual faces need to stay clear, or anything a viewer is likely to open full screen. It is well past the point of visible compression and into simply making a large file more manageable.
What to expect at 300 KB
No perceptible loss. At this size you are mostly stripping the redundancy a camera leaves in the file rather than discarding anything your eye would notice, even on a large monitor.
A real example
A detailed architectural photograph or a group shot at 3000 pixels wide fits in 300 KB with individual faces still clearly resolved when viewed full screen.
Which format to use for 300 KB
JPG at high quality is fine. WEBP would let you keep the same look at closer to 200 KB, so it is worth considering if the image is for a website rather than a download.
Getting the best result at 300 KB
- A sensible standard for photography portfolios and gallery images
- Keep the untouched original if the photo will ever be printed large
- Best choice when viewers are likely to open the image full screen
How it works
- 1
Upload your image
Drag it in or click to pick. Nothing is sent to a server.
- 2
Pick a target size
Choose 20 KB, 50 KB, 100 KB, 200 KB, 500 KB — or type any custom size in KB.
- 3
Download the result
We test quality levels (and shrink dimensions if needed) to land at or just under your target, then you download it.
FAQ
Why not just upload the original?
A camera JPG is often 5–10 MB. Compressing to 300 KB makes it perhaps fifteen times lighter to upload and load, and for on-screen viewing the two look the same. Keep the original if you intend to print.
Is this good for a photography portfolio?
Yes — 300 KB is a common choice for portfolio images. It preserves the detail people are there to look at while keeping the gallery quick to browse.
Frequently Asked Questions
How do I compress an image to exactly 100 KB or 50 KB?
Upload your image, pick a target (20 KB, 50 KB, 100 KB, 200 KB, 500 KB) or type a custom size in KB, then click Compress. The tool automatically tests quality levels — and reduces the dimensions if needed — to land at or just under your target size.
Are my images uploaded to a server?
No. Everything happens in your browser. Your image never leaves your device — there is no upload and nothing is stored. This makes it safe for IDs, documents and personal photos.
Why do I need an image of an exact size?
Many websites and government / exam / job application forms require photos under a specific size, such as 50 KB or 100 KB. This tool gets you under that limit without manual trial and error.
What if my target size is too small for the image?
If a size is impossible without destroying the image, the tool produces the smallest acceptable version it can and tells you it could not reach the exact target. Try a slightly larger target or a smaller starting image.
Which output format should I choose?
JPG gives the smallest files and is accepted almost everywhere, so it is the default. WEBP can be a little smaller at the same quality but is not accepted by every form. If a form asks for JPG/JPEG, choose JPG.