Shrink file sizes, right on your device.
Processed directly on your deviceDrop images or an Excel file in, choose a compression level, preview the size and download the new file.
Choose files to compress
Supports images, PDF and Excel .xlsx, up to 100 MB each.
Drag and drop files to compress
PNG · JPG · JPEG · WebP · PDF · Excel .xlsx
Select multiple files at once if neededCompression level
Choose how to balance quality against file size.
Frequently asked questions about file compression
Does compression upload my data to a server?
No. The entire compression runs in your browser, on your device. Files are never uploaded and the originals on your machine stay untouched.
Which formats can I compress?
PNG, JPG, JPEG, WebP, PDF and Excel .xlsx, up to 100 MB per file. You get a new, smaller file to download; if a file was already optimized you receive the original back with a note.
Why does a file say “Already optimized — kept as is”?
If compressing would not reduce the size, SheetDrop returns the original instead of producing a larger or lower-quality file for no benefit.
Why did the result miss the target size?
The tool reduces quality step by step until it hits the target or reaches the acceptable quality floor. If it still misses, you receive the best result with a “Target not reached” status so you can decide whether to keep it.