InstantToolsPro
✔ 100% Free – No Signup Required
InstantToolsPro
Reduce image size to an exact KB or MB target. Bulk compress up to 20 images, convert formats, resize — no signup, no watermarks.
JPG, PNG, WEBP · Up to 20 MB per file · Max 20 files
Files never shared · Auto deleted after 1 hour
Drag & drop or browse for JPG, PNG, or WEBP files — up to 20 images at once.
Choose compression mode, set a target file size, resize dimensions, and output format.
Our engine iterates until your images are as close as possible to the target size.
Save each image individually or download all in a single ZIP archive.
Our tool uses industry-leading engines — jpegoptim, pngquant, cwebp, and ImageMagick — to deliver the best compression ratios without visible quality loss. Unlike simple quality-slider tools, our smart mode automatically picks the right algorithm and iterates until your image hits the exact file size you need.
Need an image under 200 KB for a form upload? Or under 1 MB for an email attachment? Enter your target size and let the tool do the math. It runs a binary-search compression loop, adjusting quality until your image is as close as possible to the target — far smarter than guessing a slider value.
Serving PNG images with no transparency is wasteful. Our Auto mode detects transparency and automatically converts opaque PNGs to JPG — often achieving 50–80% savings with no perceptible difference. You can also manually choose WEBP for the best modern compression.