Drop your image
JPG, PNG, WebP or another common format. You can add several at once.
Compress image to 500 KB
Get any photo under 500 KB without guessing: set the limit, drop your image and the tool finds the highest quality that still fits. Nothing is uploaded.
- Free
- No sign-up
- Runs in your browser
Common limits
100% private — your images are processed on your device and are never uploaded to any server.
Works with images up to about 40 MB. On an older phone, very large files may be slow or run the browser out of memory.
Next step
Keep going with your result in another tool. Nothing is uploaded.
How it works
The limit is already set
The maximum size is 500 KB; change it or the output format if you need to.
Download the result
Each image is compressed on your device and downloaded at 500 KB or less.
How to compress an image to 500 KB
To compress an image to 500 KB, drop it on the box above: the limit is already set to 500 KB. The tool tries different quality levels and, if needed, smaller dimensions until the file fits, then gives you the best result under 500 KB. It all happens in your browser, so the image is never uploaded.
What 500 KB means for an image
500 KB is 500,000 bytes. For a typical photograph that is about 1,600 × 1,200 pixels at reasonable quality. Small, simple images (logos, signatures, flat graphics) fit in far less, while detailed photos with lots of texture need a lower resolution to reach the same limit.
Where a 500 KB limit is common
Files around 500 KB are typically asked for in standard web photos, e-commerce product images and social media pictures. Portals set limits like this to keep uploads fast, so a result that is at or under the limit is what they accept.
How the tool reaches 500 KB
The tool first lowers the JPEG or WebP quality in small steps, because that costs the least visible detail. If the quality alone cannot get under the limit, it also reduces the image dimensions, and it tells you when a file cannot go below a certain size without ruining the picture. A bytes-per-pixel guide: at 0.5 bits per pixel a 500 KB file holds about 8.0 MP, at 1.0 about 4.0 MP and at 1.5 about 2.7 MP.
What fits in 500 KB (estimate)
| JPEG quality | Pixels that fit | Largest common size |
|---|---|---|
| Low (about 0.5 bits per pixel) | 8.00 MP | 3072 × 2304 |
| Medium (about 1 bit per pixel) | 4.00 MP | 2560 × 1440 |
| Good (about 1.5 bits per pixel) | 2.67 MP | 1920 × 1080 |
| High (about 2.5 bits per pixel) | 1.60 MP | 1280 × 960 |
How much has to go
| Typical file | Reduction needed |
|---|---|
| Phone photo, 12 MP (about 3.5 MB) | 86% |
| High-resolution photo, 48 MP (about 12 MB) | 96% |
| Web photo, 2 MP (about 600 KB) | 17% |
| Full HD screenshot as PNG (about 400 KB) | none, it already fits |
When you need 500 KB
A 500 KB limit is the everyday web standard: photos in blog posts, e-commerce product images, social media pictures and gallery thumbnails. It is also a common cap for attachments in support forms that accept screenshots and photographs.
What to give up first at 500 KB
Very little has to give at 500 KB. A phone photo at 1,600 pixels wide and quality 75 to 85 fits and looks sharp on almost any screen. The main saving comes from discarding the extra resolution a modern camera records, which you cannot see on a web page.
Tips to stay under 500 KB with the best quality
- 1,600 pixels wide is enough for full-width web images on most layouts, including large monitors.
- Screenshots with text are better kept as PNG or WebP; if they are too heavy, crop to the relevant area first.
- For a gallery, compress every image to the same limit so the page weighs what you expect.
- Start from the original, not from an already compressed copy: repeated compression degrades quality faster.
Private by design
The compression runs entirely in your browser. Your image is not uploaded, so documents, ID photos and personal pictures stay on your device, and there is no queue.
Frequently asked questions
How do I compress an image to 500 KB?
Drop the image on the tool at the top of this page. The limit is already set to 500 KB; the tool finds the best quality that fits and lets you download it.
Is 500 KB good for a website image?
Yes. It is a common upper bound for a hero or product image; many small images on a page are better at 100 to 200 KB.
How do I reduce a screenshot to 500 KB?
Crop away what is not needed, then compress. Screenshots with flat colours compress well, especially as WebP.
Will the result be exactly 500 KB?
It will be 500 KB or less. The tool picks the highest quality that fits under the limit, so the file often lands just below it, but it is not padded to an exact size.
Why can't my image go under 500 KB?
A very large or very detailed image may need to be reduced in dimensions as well as quality. Resize it to a smaller size first, or accept a lower resolution.
Does compressing to 500 KB reduce the resolution?
Only when necessary. The tool lowers quality first and reduces the dimensions only if the quality alone cannot reach the limit.
Is it free and private?
Yes. There is no sign-up or watermark, and the image never leaves your device because the compression runs in your browser.
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