A 500 KB budget is enough for a large, sharp photo. Set the limit and get the best quality that fits, ideal for portals, listings, email and websites.
No limits or paywall.
Use instantly, no account.
Processed inside your browser.
Clean, full-quality output.
No upload queue or waiting.
Works on phone and desktop.
Not every size limit is about squeezing a photo into a few kilobytes. Many job portals, marketplaces, real-estate and classifieds sites, CMS platforms and support systems cap uploads at 500 KB: small enough to keep their servers and pages fast, large enough for a genuinely sharp photo. Phone cameras produce 3–6 MB files, so you still need to compress, but you can keep almost all of the quality.
The workspace above is preset to a 500 KB ceiling and finds the highest quality that fits, without changing your photo's dimensions. It runs entirely in your browser, so nothing is uploaded and there is no limit on how many photos you compress.
Before
Phone photo, 4032 × 3024
≈ 4.5 MB
Too large for many upload forms, listings and email.
After
JPEG, same dimensions
≤ 500 KB
Visually close to the original at normal viewing sizes.
Illustrative example. At 500 KB even a 12 MP photo keeps good quality; resizing to around 3000 pixels wide gives an almost indistinguishable result.
The Target Size tab in the workspace above is already set to 500 KB.
Drop a JPEG, PNG, HEIC, WebP or other image. It is read locally, never uploaded.
Keep JPEG for forms, listings and email. Choose WebP or AVIF for your own website.
The engine finds the best quality at or under 500 KB. Check the preview and download.
| Dimensions | Megapixels | Bits per pixel at 500 KB | Expected result |
|---|---|---|---|
| 1920 × 1080 | 2.07 MP | ≈ 2.0 bpp | Practically identical to the original |
| 2048 × 1536 | 3.15 MP | ≈ 1.3 bpp | Excellent |
| 3000 × 2000 | 6.0 MP | ≈ 0.68 bpp | Very good |
| 4032 × 3024 | 12.2 MP | ≈ 0.34 bpp | Good; resize for near-perfect |
| 6000 × 4000 | 24 MP | ≈ 0.17 bpp | Fair; resize first |
Five hundred kilobytes is about 4.1 million bits. At Full HD (about 2 megapixels) that is two bits per pixel, roughly what a high-quality JPEG export uses, so the result is practically identical to the original. Even at 12 megapixels you still get about a third of a bit per pixel, which looks good at normal viewing sizes.
If you want the result to be visually perfect, resize first. Most websites display photos at 1200–2000 pixels wide; resizing a 4032-pixel photo to 3000 or 2000 pixels gives the encoder two to four times more bits per pixel within the same 500 KB.
The format you choose decides how much quality 500 KB buys:
The compressor encodes your image at a middle quality, measures it, and narrows the search towards 500 KB, repeating up to nine times. It keeps the largest result that is still at or under the limit, because more bytes mean more preserved detail, and it never returns a file above the limit when a fitting quality exists. If your photo is already under 500 KB, there is nothing to gain: upload the original.
You will meet 500 KB caps on job application portals for photos and supporting documents, on classified and property listing sites, in help-desk and ticketing systems, on community forums and in website builders that recommend lightweight images. For a web page, 500 KB is also a sensible ceiling for a large hero image; for content images, smaller is better, and the JPG to WebP converter can cut size further.
Your photo is decoded and compressed on your device using the browser's own encoders. It is never uploaded, and the result carries no EXIF metadata, so GPS location and camera details are not shared with the site you upload to.
Because 500 KB is generous, the best result usually comes from picking sensible dimensions first and letting the compressor use the budget for quality. These starting points work well:
The target-size tab processes one image at a time, which is ideal when each file must be checked against a limit. If you regularly upload many photos to the same site, find the quality setting that usually lands under 500 KB for your camera, then use the batch tab in the Image Compressor to apply it to a whole set and download a ZIP.
At the same 500 KB, newer formats keep more detail. WebP typically looks noticeably cleaner than JPEG in smooth areas such as skies and skin, and AVIF goes further still, especially on high-resolution photos. The trade-off is compatibility: forms, marketplaces and email clients reliably accept JPEG, while WebP and AVIF are best reserved for websites you control. If AVIF encoding isn't supported by your browser, the tool falls back to WebP automatically.
Upload profile photos and document images that pass a 500 KB limit while staying sharp.
Detailed listing photos that load quickly for buyers.
Attach several clear photos without hitting mailbox limits.
Keep large feature images under 500 KB for faster pages.
Drop it into the workspace above, where the target is preset to 500 KB, and download the result. The engine finds the highest JPEG quality that keeps the file at or below 500 KB.
Yes. 500 KB holds about two bits per pixel at Full HD, which is visually indistinguishable from the original. Even a 12-megapixel photo looks good; resizing it to around 3000 pixels wide makes it near-perfect.
No. Only compression quality changes; width and height stay the same. Resize separately with the Image Resizer if you also need smaller dimensions.
Yes. HEIC, PNG, WebP, AVIF, TIFF and BMP are accepted. Choose JPEG output for the widest compatibility.
No. Compression runs entirely in your browser; the photo never leaves your device.
To keep storage and page loading fast. A 500 KB photo still looks sharp on any screen while loading quickly for visitors.
Then it already meets the limit and you can upload it as it is. Compressing it again would only lose quality without any benefit.
This tool uses 1 KB = 1,024 bytes, so 500 KB = 512,000 bytes. If a site counts 1 KB as 1,000 bytes, set the target to 488 KB to stay under 500,000 bytes.
Only for simple graphics. PNG is lossless, so photographs are usually several megabytes; choose JPEG or WebP output for photos.
Yes. The compressed file is written without EXIF metadata, so camera details and GPS location are not included.
Yes. The compressor runs in mobile browsers; very large photos may take a few seconds longer on older phones.