Merge PowerPoint Files – Free Online Tool
Combine multiple PowerPoint presentations into one. Merge slides from different PPT files.
Example Output
Real .pptx output. Slides keep their original masters/themes; you can optionally normalise to the first deck's theme for visual consistency.
combined.pptx — 38 slides in order, each source's theme preserved per section
What is Merge PowerPoint Files?
Combine multiple PowerPoint decks into one .pptx with drag-and-drop ordering. Each source's slides preserve their layouts, animations, and embedded media — or normalise everything to the first deck's theme for a single cohesive look. The combined file is a real .pptx you can keep editing.
Why use this tool?
- No API keys to manage and no rate limits to monitor
- 100% free with no hidden costs or daily limits
- Works offline after the first page load
- Auto-detects encoding (UTF-8, Shift_JIS, GBK, Vietnamese) for CSV imports
- No file upload — confidential reports never leave your computer
How to use
- Upload multiple PowerPoint files
- Arrange presentations in order
- Click "Merge PPTs" button
- Download the combined PPT file
Examples
Conference talk assembly
Intro deck + 3 co-presenter decks merge into one master deck for a panel session — speakers can still control their own sections.
Sales playbook compilation
Five product decks merge into a single 80-slide playbook for new-hire training.
Theme normalisation
Toggle "apply first deck's theme to all" so heterogeneous source decks share one consistent visual style.
Common use cases
- Assembling panel/joint presentations
- Compiling sales playbooks from product decks
- Combining course-module decks into a full-course deck
- Building investor decks from team contributions
- Reusing slide libraries by appending into a master
Troubleshooting
- Slides look mismatched after merge
- Each source brought its own master. Toggle "apply first deck's theme" to normalise, or fix the master in PowerPoint after merging.
- Embedded videos broken
- Videos must be embedded (not linked) in each source. Re-embed in the originals if they were linked, then re-merge.
- Slide numbers reset oddly
- Toggle "renumber slides sequentially across sources" — by default each section keeps its source numbering.
Frequently Asked Questions
Up to about 20 files in one operation. Files are concatenated in the order shown — drag the file list to reorder before merging.
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