Choose
Upload, drag, drop, or paste your JPEG.
Need a JPEG under 20KB? Upload your JPG and we’ll search for the highest quality that fits your 20KB limit.
Drop JPEG images here
or choose files from your device
You can also paste an image with Ctrl / ⌘ + V
Idle
Target Size treats 20KB as a maximum, not an exact output. A 20KB target may produce a 19.6KB JPEG — the goal is to stay within your limit while preserving the highest possible quality.
Example result
4.8 MB → 19.6 KB
Target: 20 KB
Extremely small limits show up for tiny signature scans, thumbnail or avatar slots capped in the KB range, and strict upload portals that reject anything larger. Some application or exam forms may specify strict image-size limits — always check the current requirements for your specific application, since limits differ between forms and can change.
JPEG compression reduces file size by removing image information that is less noticeable to the human eye. At 20KB the budget is very tight, so detailed photos will look visibly softer — small, simple images hold up far better. CompressJPEG searches for the highest quality setting that produces a file within your selected limit, and the side-by-side preview shows exactly what changed before you download.
Three steps to a smaller JPEG.
Upload, drag, drop, or paste your JPEG.
Choose Smart, Quality, or Target Size.
Save your smaller JPEG.
CompressJPEG processes your images directly in your browser. Your photos are not uploaded to a server.
Images stay on your device.
Start compressing immediately.
Your compressed images remain yours.
Upload your JPG on this page — the editor opens with Target Size set to 20KB. Press Compress, then download the result. If 20KB is unreachable without ruining the photo, the tool says so and suggests enabling Resize.
Often yes, but 20KB is a very small budget — tiny signatures and simple graphics fit easily, while detailed photos may need Resize (for example 1280px) to get there at usable quality.
It depends on the image. Small, simple images can look fine; large detailed photos will show visible softness at 20KB because so much data must be removed. The side-by-side preview shows exactly what changed before you download.
Yes — up to 20 images. They are processed one at a time so large batches don’t freeze your browser. Download individually or all together as a ZIP file.
Yes. Compression runs locally in your browser — image bytes are never uploaded to our servers. The compression library itself loads from a CDN, so the page needs internet once, but your photos never leave your device.
Free to use · No account · No watermark
Upload your image and we'll open Target Size at 20KB.