Compress JPEG to 150 KB
Reduce a JPEG to 150 KB or less in your browser. Free, private, no sign-up.
How to use
- Add one or more images with the button or by dragging them in.
- Adjust quality, target size, width or format if you need to.
- Press Compress, then download each file or all of them as a ZIP.
Frequently asked questions
Is this tool free?
Yes. There are no limits, watermarks or accounts.
Are my images uploaded?
No. Compression happens in your browser using the Canvas API, so files stay on your device.
Will the image lose quality?
JPEG is lossy, but at quality 70 to 85 most photos look the same to the eye while shrinking a lot.
When you need a file under 150 KB
Upload forms, email limits and page-speed budgets often come with a hard size cap. This page is preset to 150 KB: drop in a photo and the compressor searches for the highest quality that fits, shrinking dimensions only if quality alone is not enough. The result is the best-looking image that still passes the limit.
How big can a 150 KB image be?
File size depends on content as much as pixels. A plain background compresses far better than leaves or gravel. As a rough guide for a 4:3 photo at 150 KB:
| Quality | Approx. width | Use |
|---|---|---|
| 85 | ~904 px | Sharp detail, larger file |
| 75 | ~1131 px | Balanced default |
| 60 | ~1413 px | Small previews and thumbnails |
These figures are estimates. The tool always reports the exact size of every file it produces.
Tips for hitting 150 KB cleanly
Crop to the subject first, so pixels are spent where they matter. Avoid re-compressing a file that has already been compressed, because artefacts stack. If a portal also lists a pixel range, set the maximum width to match it before compressing. Aim slightly below the limit, since some systems count 1 KB as 1000 bytes and others as 1024.
Guides
- Privacy Tips When Compressing Images for Restaurant Menus Online
Many online compressors upload your images to a server. That is not always necessary.
- Aspect Ratios to Use for Blog Post Images
Aspect ratio is the shape of the image, and the wrong one leads to awkward crops.
- Converting HEIC to JPEG for Scanned Documents
iPhones save photos as HEIC by default, and not every site accepts it.
- Upload Errors and File Size Limits for Landing Pages
An upload error is frustrating when the message is vague.
- Quick Guide: Compress JPEG for Marketplace Ads in 30 Seconds
Short on time? Here is the fastest route.
- Best Image Size for Etsy Listings
There is no single magic number, but there is a sensible range for Etsy listings.
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