Office
Excel Viewer — Open XLSX & CSV Files
Open xlsx, xls and csv files without Excel, an install or a login. Sheet tabs, date formats, merged cells and search — files stay in your browser.
HWP Viewer & Editor
Open, edit and save Korean HWP and HWPX documents without installing anything. Runs in your browser with no upload.
Merge Spreadsheets
Combine several Excel or CSV files into one table, matching columns by name. Runs in your browser with no upload.
Excel Editor — Edit XLSX & CSV Online
Edit xlsx, xls and csv files without Excel: change cells, add rows, columns and sheets, use SUM and AVERAGE formulas, undo, and save as xlsx or CSV. Files stay in your browser.
Compare Spreadsheets
Compare two versions of an Excel or CSV file and see the added, removed and changed rows and cells. Runs in your browser with no upload.
Compress PowerPoint (PPTX)
Shrink a PowerPoint file (.pptx) by re-saving only the photos inside, so it fits email attachment limits. Text, shapes and animations stay intact, and nothing is uploaded.
PDF Editor
Add text, images, signatures and highlights to a PDF and rotate, delete or reorder pages. Existing text is covered and retyped, not edited in place; no upload.
Keep the tools you use most in one place.
Saved tools are kept in this browser.