Clean Up Unused Slide Masters
Delete the layouts, masters, themes and media nothing in the file refers to, and see how much space that frees.
How it works
This utility runs locally in your browser for privacy and speed.
1 ⚡
Unlimited local toolsThis run costs 1 credit(s) and is saved to your history automatically.
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Frequently asked questions
- Do I get free credits to try Clean Up Unused Slide Masters?
- Yes — new accounts get 3 free credits to spend on any tool, Clean Up Unused Slide Masters included. After that you only pay for what you run.
- How many credits does Clean Up Unused Slide Masters cost?
- Everything runs in your browser and nothing is uploaded: free accounts pay 1 credit per run, and Pro or Pro+ members run it as often as they like.
- Is the content I paste private?
- Clean Up Unused Slide Masters uses your input only to generate the result. Stored results are deleted automatically by our retention policy, and you can remove any run from your history.
- Where is my PowerPoint file processed?
- In your browser. Clean Up Unused Slide Masters reads the .pptx package locally, so the deck itself never leaves your device — nothing is uploaded, and it works offline. Only the exported file (Markdown, Word, ZIP or a smaller .pptx) is saved to your downloads.
- Do I need to install anything?
- No. Clean Up Unused Slide Masters works in any modern browser — nothing to download or install.
Related tools
Tools people usually need next, in the same workflow.
PowerPoint Compressor
1 ⚡Shrink a PowerPoint file by re-encoding its pictures. Text, layout and the number of slides stay exactly as they were.
PowerPoint Cleanup & Check
1 ⚡Check a deck for author details, comments, speaker notes, hidden slides and pictures without alt text, then remove what should not travel with it.
Merge PowerPoint Files
1 ⚡Combine two or more PowerPoint files into one deck, keeping each file's own design, master slides and pictures.
Extract Audio & Video From PowerPoint
1 ⚡Get the narration and the videos out of a .pptx: every audio and video file inside, with the slides that use it.