Compress Image to 250KB
Automatically compress any image to under 250 KB using jsquash binary-search encoding.
Drag, drop, paste, or browse
JPG, PNG, WEBP, GIF, and AVIF up to 50 MB. Paste from clipboard with Ctrl+V.
Settings
Tune output without leaving the browser.
Target
≤ 250 KB
jsquash finds the highest quality that fits, scaling down if needed.
Best compatibility, great for photos
Before / after preview
Compare the source image with the generated file.
Result download
Your processed image will appear here.
Useful to know
Quality vs file size
Lower quality settings shrink files but introduce artifacts in flat areas like skies and skin. For most photos, 70-85% quality is visually indistinguishable from the original at typical viewing sizes.
What gets compressed
ImgShifter compresses JPG, PNG, and WEBP locally in your browser. PNG compression is lossless. JPG and WEBP are lossy, so re-compressing the same file repeatedly will compound quality loss.
Compress to 250 KB online with ImgShifter
ImgShifter compresses JPG, PNG, and WEBP files locally using the browser-image-compression library. The slider controls quality directly, and the before/after preview gives an instant read on visual loss before you commit to a download.
PNG compression is lossless. JPG and WEBP are lossy, so re-compressing the same file repeatedly compounds artifacts - start from the highest-quality source you have. Files of up to 50 MB process comfortably; larger files are limited only by your device's available memory.
Every byte stays on your device. You can verify by opening the Network tab while you compress, or by disabling your network after the page loads - the tool keeps working.
Related tools
Other ImgShifter tools people use alongside Compress to 250 KB.
Compress to 300 KB
Automatically compress any image to under 300 KB using jsquash binary-search encoding.
Compress to 100 KB
Automatically compress any image to under 100 KB using jsquash binary-search encoding.
Compress to 50 KB
Automatically compress any image to under 50 KB using jsquash binary-search encoding.
Compress
Reduce image file size with a quality slider and instant before/after stats. Powered by jsquash MozJPEG, libwebp, and AVIF encoders.
Frequently asked questions
Short answers for image workflows, privacy, and supported formats.