🗜️ Office File Compressor
Shrink PPT, Word, Excel & Hancom (hwpx) files in your browser — files never leave your device.
Drag an Office file or choose
Word(.docx) · Excel(.xlsx) · PowerPoint(.pptx) · Hancom(.hwpx)
🔒 Files are processed in your browser and never uploaded.
Related Tools
When the attachment is "too large", shrink the file first
Ever hit an attachment size limit (10MB, 25MB) when emailing a slide deck or uploading a report? The culprit is usually the high-resolution photos and screenshots embedded in the document. Drop a full-size camera photo onto a slide and it can weigh several megabytes on its own.
This tool opens the file, recompresses the embedded images to a size and quality that's plenty for on-screen viewing, and repacks it. An image is only replaced when the new version is actually smaller, so your file only ever gets lighter.
Supported formats
- PowerPoint — .pptx (biggest wins on image-heavy decks)
- Word — .docx
- Excel — .xlsx
- Hancom — .hwpx (legacy binary .hwp not supported — save as hwpx first)
How to use
- Drop a file and pick a compression strength (Light / Medium / Strong).
- Press Reduce Size to see original vs compressed size and the percentage saved.
- Download the new
-compressedfile. Your original stays untouched.
FAQ
Q. Are my files uploaded?
No. Compression runs entirely in your browser — nothing is sent to a server, so company and personal documents stay private.
Q. Why do text-only files barely shrink?
The tool reduces size by recompressing images. Files with few images (mostly text or tables) have little to trim, and already-optimized files are reported as such.