Compress PPT & PPTX Online — Free PowerPoint Compressor

Built for the Real Reason Your PPT Is Too Big

Most oversized presentations aren’t bloated by text or layout — they’re bloated by images. Camera photos, screenshots, and stock images are often far larger than a slide needs on screen, and PowerPoint keeps the full original file even when the image is displayed small.

This compressor targets exactly that: it recompresses and resizes embedded images to cut your file size, while leaving your layout, fonts, animations, and text untouched. If your file is large mainly because of embedded video or audio, image compression alone won’t get you far — see “What This Tool Doesn’t Fix” below for a faster path.

How to Compress a PPT or PPTX File

Step 1: Upload Your File. Drop your .ppt or .pptx file into the tool above. Files up to 100MB are supported.

Step 2: Compress. Click Compress. Your images are optimized in seconds — no software, no installation.

Step 3: Download. Download your smaller file and compare the before/after size shown on screen, then share, upload, or email it.

What Gets Optimized (and What Doesn’t)

Optimized: embedded images are recompressed and resized to cut file size while staying sharp enough for screen and print use.

Left untouched: slide layout, fonts, text, animations, and transitions stay exactly as they were.

Not the target: embedded video and audio aren’t what this tool compresses. If most of your file size comes from video, try PowerPoint’s built-in “Compress Media” option (File > Info > Compress Media) first, or split the presentation into smaller files.

File Limits & Formats

Accepts .ppt and .pptx files up to 100MB. Free to use, no account, no watermark, and no limit on how many times you use it. If your file is larger than 100MB, remove unused slide masters and hidden slides first, or compress embedded media natively in PowerPoint before uploading.

Free and Secure PPT Compressor that Respects your Design

Free versions of most tools offer limited compression capabilities, where either you have to buy the paid tool for the best results, or you end up with low-quality and blurred slides.

We take pride in offering the premium features and options for free. Users don’t need to worry about the safety and security of their data, as we don’t share user data with any unauthorized party or platform.

Original and compressed PPT files are yours, only yours; no one from our team can access or view the contents of your PPT files. Why try our free PPT compressor? Because it has a lot to offer:

• Completely free to use
• No watermarks
• No account required
• Files are processed securely
• Automatic file deletion for privacy

Example: What to Expect

A 100MB image-heavy presentation typically compresses down to 10–20MB — enough to clear Gmail’s 25MB and Outlook’s 20MB attachment limits in a single pass. Actual results depend on how many images your deck has and their original resolution.

Every PowerPoint user understands that the best practice for impactful presentations is to keep the slides lightweight, easy to share, and optimized. This is exactly what our free PPT compressor is designed to offer.

Private by Default

Files are transferred over an encrypted HTTPS connection. Your file is automatically deleted after you download the compressed version. No one but you can access the contents of your presentation — we don’t share files with third parties.