Compress Image to 150 KB — Free & Online
Bring an image down to 150 KB — a good balance of quality and speed for blog posts and product photos.
- 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 150 KB image?
150 KB suits images that need to look genuinely good rather than merely acceptable — product photographs where a customer is judging the item, or blog headers that set the tone of an article. It is heavier than a strict performance budget would allow, but the extra detail is often worth it.
What to expect at 150 KB
Effectively indistinguishable from the original for most photographs at screen size. Fine texture — fabric weave, skin detail, foliage — survives at this level where it starts to soften below 100 KB.
A real example
A product photograph at 1600x1600 fits into 150 KB with its texture intact — fabric weave, stitching and material grain all survive, which is exactly what a customer zooms in to check.
Which format to use for 150 KB
WEBP is the better choice here if the image is destined for a website, since 150 KB of WEBP holds visibly more detail than 150 KB of JPG. Stick with JPG if the file needs to be universally openable.
Getting the best result at 150 KB
- Worth the extra weight for product photos a customer will zoom into
- Use a lighter target for thumbnails and keep 150 KB for the main image
- Fine texture like fabric and foliage survives here where it softens below 100 KB
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
Should product photos be 150 KB or smaller?
For a listing thumbnail, smaller is fine. For the main product image a customer zooms into, 150 KB is a sensible floor — going lower starts to cost you the detail that sells the product.
Will this slow my site down?
A few 150 KB images are fine. If a page carries twenty of them, consider lazy loading and converting to WEBP, which would cut roughly another third off each file.
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.