PowerPoint Compressor — Compress PPT & PPTX Online Free

Compress PowerPoint files in your browser. Reduce PPTX size without losing slides, images, or animations — free, private, no upload, no sign-up.

Drop your PowerPoint here, or click to browse

Files are processed in your browser — nothing is uploaded.

What is a PowerPoint compressor?

What is it

A PowerPoint compressor reduces the size of a PPTX file by re-saving its internal Office package at maximum compression. filecompressor.app does this entirely in your browser, so your presentations never leave your device.

Every slide, image, and animation stays intact — only the storage becomes more efficient. It is perfect for shrinking decks to fit email attachments or upload limits.

How to compress a PowerPoint

How to use

Compressing a deck is quick and private:

  1. 1

    Drop your PPTX file into the dropzone above, or click to browse and select it.

  2. 2

    The compressor re-saves the Office package at maximum DEFLATE level, then shows the new size and percentage saved.

  3. 3

    Click Download to save the smaller PowerPoint. All slides and content are unchanged.

Why use this PowerPoint compressor?

Why use it

No slides or content removed — everything stays intact, just stored more efficiently.

100% private — presentations are processed in your browser and never uploaded.

Free with no sign-up, no watermarks, and no limits.

20–40% reduction on most decks, more on image-heavy ones.

Helps decks fit under the 25MB email attachment limit.

FAQ

Common questions about this compression tool.

Frequently Asked Questions