Compress any file into a ZIP archive — Word documents, PDFs, images, spreadsheets and more. Free, instant, nothing leaves your browser.
Click to choose files or drop them here
Any file type — .doc, .docx, .pdf, .xlsx, images and more
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All compression runs in your browser using the fflate library — No files uploaded to server. Word documents, spreadsheets and text files compress best. JPEG images & MP4 videos are already compressed and will show minimal size reduction.
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How to use the ZIP compressor
Drop one or more files into the box, click compress, and your ZIP downloads instantly. No upload, no waiting — everything runs in your browser.
Best results by file type
.doc / .docx — Word documents compress 50–80% smaller on average.
.xlsx / .csv — Spreadsheets and data files compress very well.
.txt / .html — Plain text compresses extremely well, often over 80%.
.pdf — Moderate compression — use our dedicated PDF compressor for best PDF results.