Combine multiple PowerPoint (.pptx) files into one presentation — drop several files, reorder them with the arrow buttons, optionally insert divider slides between the files, then merge and download a single .pptx. Everything runs locally in your browser — no upload, no account.
What happens — the first file keeps its design (masters, theme, backgrounds); slides of the following files are appended in order with their own pictures and tables. Divider slides (optional) are generated with a clean style showing “Part 1 / Part 2 / ...”. The merged file opens in PowerPoint, Google Slides or the PPT Viewer / Editor.
Drop PowerPoint files here or click to choose
PPTX — 2 or more files — parsed locally
Input files (use Up / Down to reorder):
One deck, one slide size
A .pptx file carries exactly one slide size in its presentation settings (a 16:9 deck is 13.333 × 7.5 inches, 4:3 is 10 × 7.5). When files are merged, the merged deck keeps the first file's slide size — the same file whose masters and theme win. If you mix decks with different aspect ratios, later slides land on the first file's canvas and will not fill it the way they did at home.
Merge decks that share the same slide size (all 16:9 or all 4:3) for a clean result. To check a deck's size, open it in the PPT Viewer / Editor; to merge documents instead of slides use Word Merge.
