presentation → document
Convert PPTX to HTML
Convert PPTX to HTML in seconds. Free, no signup, no watermark, no file-size limit. Runs on our conversion servers.
At a glance
- Source
- PPTX
- Target
- HTML
- Where it runs
- Our servers
- Cost
- Free, unlimited
- Account
- Not needed
PPTX to HTML is on the release list
The document is opened in a layout engine and re-saved in the target format, mapping each style onto the closest equivalent in the new format. That needs a full document rendering engine, so it will run on our servers rather than in your browser. It is next in the queue and it will be free.
Do it now, on your device
No PPTX conversion runs on-device yet — but these do
We would rather point you at something that works than at a queue. These conversions run entirely inside your browser right now — no upload, no account, no watermark.
The details
What happens when you convert between document formats
PowerPoint's modern presentation format. A stack of slides, each one a page of shapes. The document is opened in a layout engine and re-saved in the target format, mapping each style onto the closest equivalent in the new format. The result is a the format the web is built on. a document that a browser knows how to lay out, produced on our conversion servers.
What survives
- The text and the paragraph structure
- Most formatting: fonts, sizes, colours, alignment, lists and tables
- Embedded images
What changes
- Styles that have no equivalent are approximated
- The file may gain or lose features the target format does not support
Where it goes wrong
- Styles are usually mapped by name, so renaming a style before converting can lose the mapping
- The target format may not support the same page size or margins
Why anyone would do this
Different teams use different formats, and the content should not be held hostage by that.
About the format
PowerPoint's modern presentation format.
A ZIP archive of XML slide parts, one folder per slide, plus a master layout, theme, media and the relationships that connect them.
- Where it is good
- Holds slides, animations, charts, video and speaker notes
- Opens in PowerPoint, Keynote, Google Slides and LibreOffice
- The de facto language of presentations
- Where it falls short
- Fonts and animations render differently across platforms
- A big deck with video can be hundreds of megabytes
- Slide sizes and aspect ratios get converted, not preserved
- You will find it on
- PowerPoint, Keynote, Google Slides, LibreOffice Impress
The thing people miss
A 30-slide deck with embedded video is usually larger than the same video file, because the video is stored inside the archive.
About the target
The format the web is built on.
A tree of elements and attributes, usually with CSS for styling and JavaScript for behaviour. The browser builds the page from it at request time.
- Reflows to any screen size on its own
- Semantic markup makes a document readable by a screen reader
- Links, images and forms are all part of the format
Real jobs
What people are actually doing with PPTX
Sending a deck that the other person can present
Turning a deck into a document people can actually read
Making a handout PDF from a finished presentation
Specification
The details, in one table
| Source format | PPTX — PowerPoint deck |
|---|---|
| Target format | HTML — HTML document |
| Typical source size | 100 KB – 100 MB |
| Runs | On our servers |
| Account needed | No |
| Watermark | None |
| File extension | .pptx → .html .htm |
How to
PPTX to HTML, step by step
- 01
Add your powerpoint deck
Drag the file onto the drop zone, or tap to browse. Only one file is needed.
- 02
Choose the HTML settings
Set the HTML-specific options.
- 03
Download the result
The finished HTML downloads to your device. Nothing is uploaded and nothing is retained.
Also available
PPTX converts into
Queued for the servers
Questions
PPTX conversion questions
What actually happens to my PPTX file when I convert it to HTML?
The document is opened in a layout engine and re-saved in the target format, mapping each style onto the closest equivalent in the new format. So the PPTX file is unpacked, the content is laid out, and the result is written out as HTML. The text and the paragraph structure survives unchanged.
Will converting PPTX to HTML reduce the quality?
Partly. Styles that have no equivalent are approximated The text itself is never re-typed, so no words are lost.
Is my PPTX file uploaded to a server?
This particular conversion needs a full document rendering engine, so it is processed on our servers. Your PPTX file is deleted automatically within an hour of the download being ready, and it is never opened or reviewed by a person.
Do I need an account or will there be a watermark?
Neither. There is no sign-up step, no email capture and no watermark on the output. The only limits are the ones your own device imposes.
What is the most common mistake people make when converting PPTX to HTML?
Styles are usually mapped by name, so renaming a style before converting can lose the mapping
Why would somebody convert PPTX to HTML at all?
Different teams use different formats, and the content should not be held hostage by that. In short: sending a deck that the other person can present
Something most people do not know about PPTX?
A 30-slide deck with embedded video is usually larger than the same video file, because the video is stored inside the archive.