Compress an image to 500 KB
Half a megabyte is a generous budget: enough for a Full HD photo at good quality. Use it when a site caps uploads at 500 KB, or to stop one image weighing down a page.
- Runs in your browser
- Nothing is uploaded
- No sign-up
- Batch up to 20 images
Drag & drop your image here
or tap to browse · you can also paste from the clipboard
JPG · PNG · WebP · GIF · BMP · AVIF · SVG · up to 50 MB each · up to 20 files
Choose imagesBefore
After
Processed image will appear here.
How to use the 500 KB image compressor
The target is preset to 500 KB, so add the image and download. A Full HD picture fits at roughly quality 75 without being resized, and the original format is kept unless you pick another. Choose WebP for the best quality at this size.
- Add the imageA product shot, a banner, or a photo from your phone.
- Pick a format if you need oneThe original format is kept by default. WebP gives the best quality for the size.
- DownloadThe file is just under 500 KB, with the quality and scale shown.
About this tool
A 500 KB ceiling is common on marketplace listings, website builders, support forms and mail systems. A phone photo is six to ten times that, so it has to lose something on the way down. At this budget the loss is small: a 1920 × 1080 picture fits at roughly quality 75.
This page keeps the format you give it, unless you choose another, and searches for the highest quality that fits under 500 KB. Larger photos are scaled down only when no quality setting can reach the limit.
What you get
- Target preset to 500 KB
- Keeps the original format, or converts to JPG, WebP or PNG
- A Full HD photo fits without being resized
- Shows the quality and scale that were used
- Batch up to 20 images and download a ZIP
When to use the 500 KB image compressor
Marketplace and shop listings
Selling platforms cap each product photo, and 500 KB is a frequent ceiling.
Website builders and blogs
Page editors warn about, or refuse, images over a certain weight. Half a megabyte keeps a banner sharp without slowing the page badly.
Sending photos by email
Several photos at 500 KB each stay under the attachment limit where the originals would not.
Support tickets and web forms
Help-desk forms accept a screenshot or photo as long as it is under their upload limit.
What fits in 500 KB
| Image | Size in pixels | What to expect |
|---|---|---|
| Blog image | 1200 × 800 | Fits at very high quality |
| Full HD picture | 1920 × 1080 | Fits at roughly quality 75 |
| Large web photo | 2200 × 1650 | Fits, with moderate compression |
| 4K frame | 3840 × 2160 | Fits only with heavy compression |
| Phone photo | 4000 × 3000 | Heavy compression; resize to about 2000 px wide first |
How it works
Full HD is the natural fit for this budget. A 1920 × 1080 picture has about two million pixels, so 500 KB allows roughly a quarter of a byte for each, which is what a JPG needs at around quality 75. Below that size the tool has bytes to spare and simply uses the highest quality available; above it, the quality has to come down.
The output format changes how far 500 KB goes. WebP describes the same picture more efficiently than JPG, typically in a file a quarter to a third smaller at the same visual quality, so at a fixed size it can afford a higher quality setting. JPG remains the safe choice when the file is going to a system you do not control. PNG at this size suits screenshots and graphics, where the tool reduces the number of colours to fit.
Common problems and how to fix them
- The photo looks rough even at 500 KB
- It has far more pixels than the budget can cover, so the quality dropped a long way. Resize it to about 2000 pixels wide with the Image Resizer and compress it again.
- The result is much smaller than 500 KB
- The image fitted at the highest quality, so there was nothing to gain by making it bigger. A small or simple picture is not padded up to the limit.
- My PNG stayed a PNG and lost colours
- The format is kept by default, and a PNG can only be made smaller by reducing its palette. For a photograph, choose JPG or WebP as the output format.
- The file shows as about 488 KB, not 500
- That is deliberate. The limit is counted as 500,000 bytes, the stricter of the two ways a kilobyte is defined, so the file passes a form whichever way it counts. Windows shows sizes the other way, in units of 1024 bytes, which makes the same file read a little lower.
Frequently asked questions
How do I compress an image to 500 KB?
Add it above. The target is preset to 500 KB, so the tool finds the highest quality that fits and gives you a file just under the limit.
What resolution fits in 500 KB?
For a typical photo, about 1560 × 1170 at high quality, Full HD (1920 × 1080) at roughly quality 75, and up to about 2200 × 1650 with moderate compression.
Is 500 KB a good size for a website image?
It is on the heavy side. A full-width banner can justify it, but most images inside a page should be 100 to 200 KB. If the image is for your own site, try WebP as the output format: it reaches the same look in a noticeably smaller file.
Will the tool resize my photo to reach 500 KB?
Only when no quality setting fits. For a very large photo that can mean a low quality at full size. If the result looks rough, resize the photo to about 2000 pixels wide first and compress it again.
Which format gives the best quality at 500 KB?
WebP. It needs fewer bytes than JPG for the same look, so the same 500 KB buys a higher quality setting. Use JPG when the file is going somewhere that may not accept WebP.
Can I compress a 4K image to 500 KB?
Yes, but it will be compressed hard: a 3840 × 2160 picture has four times the pixels of Full HD. If it is going to be viewed on a normal screen, resizing it to 1920 pixels wide first gives a much cleaner result at the same size.
Can I compress a batch of images to 500 KB?
Yes. Add up to 20 images and press "Process all images". Each one is fitted separately, so small files are left near their original quality and large ones are brought down to the limit.