Free online PPT to AVI converter

Some legacy media players, editing systems, and presentation kiosks accept AVI but not editable PowerPoint slides. Converting the slides to video makes them playable as a timed sequence, though animations and narration require a workflow that preserves them.

What the PPT format is

.ppt is the binary presentation format used by Microsoft PowerPoint before the newer .pptx format. It stores slides and may include text, images, animation, audio, and timing; files commonly come from older PowerPoint installations or archives. Microsoft PowerPoint can open and create PPT files, and other office suites may open them with varying fidelity.

What the AVI format is

.avi is a multimedia container that can hold video and audio streams. It is used by older players and editing systems that expect AVI files; playback depends on whether the device supports the video and audio codecs inside the file. AVI does not specify a single codec or guarantee a smaller file.

How to convert PPT to AVI

Online on 101convert.com

1. Upload the PPT file on the converter page. Several files can be added to a batch; the page shows the per-file size limit.
2. Select AVI as the output format and set Show each page for to the desired slide duration.
3. Start the conversion, then download the resulting file or files.

Offline with desktop software

Free workflow: LibreOffice Impress and FFmpeg. LibreOffice runs on Windows, macOS, and Linux. Open the PPT in Impress and use File → Export As → Export as PDF. Render the PDF pages to numbered PNG images with Poppler’s pdftoppm -png -r 150 presentation.pdf slide, then create an AVI with FFmpeg:

ffmpeg -framerate 1/5 -i slide-%d.png -c:v mpeg4 -q:v 5 -pix_fmt yuv420p -r 25 presentation.avi

This sets each rendered slide to five seconds and encodes video with MPEG-4 Part 2. Change 1/5 to the reciprocal of the desired seconds per slide. This still-image method does not retain PowerPoint animations, transitions, audio, or per-slide timings.

Microsoft PowerPoint and FFmpeg. In a desktop PowerPoint version with video export, open the presentation and choose File → Export → Create a Video; select the timing and narration options as needed and save the exported video. If PowerPoint creates an MP4, use FFmpeg to encode it as AVI: ffmpeg -i presentation.mp4 -c:v mpeg4 -q:v 5 -pix_fmt yuv420p -c:a libmp3lame -q:a 4 presentation.avi. This route can retain supported slide timings, narration, and animations in the exported video.

Quality and compatibility

AVI is a container, so confirm that the target player supports the chosen codecs; MPEG-4 Part 2 with YUV 4:2:0 is a common compatibility choice, but some older devices require a different codec. The output’s dimensions and quality depend on the export resolution and encoding settings, and converting a presentation to video removes slide editability.