Convert PPTX to ODP PowerPoint ↔ OpenDocument Presentation Free Online Secure
Your PPTX deck is opened here in your browser and written out as ODP. Every slide keeps its boxes where they were. Nothing is uploaded.
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Where these formats come from
Both of these formats are the same thing underneath: a zip archive full of XML files describing the text, the styles and the pictures. OpenDocument came first, from the OpenOffice project, and became ISO 26300 in 2006. Microsoft's Office Open XML followed and became ISO 29500 in 2008, after a standardisation fight so bitter that national bodies changed their votes under public argument. The outcome is that the world now has two open, documented, interchangeable office formats rather than one proprietary one — which is precisely why converting between them is possible at all, and why it mostly works.
Where you meet them
The conversion is needed whenever two people use different software on the same document: a colleague who works in LibreOffice sending a file to one who works in Microsoft Office, a public body that accepts only ODF, a client who insists on .docx. It also matters for the long term — an archive kept in an open format can still be opened in twenty years, whoever is still in business.
Questions people ask
Will my formatting survive the conversion?
Ordinary formatting — headings, bold, lists, tables, images, page breaks — comes through faithfully, because both formats describe the same things in much the same way. What travels badly is everything at the edges: complex nested tables, text boxes anchored to odd positions, uncommon numbering schemes, and anything built on a feature only one of the two has. Open the result and look at the places where you did something clever; that is where the differences will be, if anywhere.
What happens to my macros?
They do not come across. Macros are program code written for one particular office suite, and the other suite does not run that language — a Word VBA macro means nothing to LibreOffice Basic and the other way round. The conversion carries the document and discards the code. If a file's whole purpose is its automation, it has to be rewritten rather than converted, and that is a programming job rather than a file job.
Does the file lose quality?
It depends on what the two formats can hold. Converting between formats that store the same thing — a PNG to a BMP, a WAV to a FLAC — loses nothing. Converting into a format that throws information away to save space, such as JPEG or MP3, loses a little every time, and converting back does not bring it back. Where a choice exists, this page errs towards keeping the original quality rather than making the smallest file.
Is my file uploaded anywhere?
No. The conversion happens inside your browser, on your own machine; the file never leaves it and there is no server here that could receive it. That is why a large file is limited by your own memory rather than by an upload, and why nothing you convert can appear in anybody's logs — including ours. The audio and video tools do fetch their conversion engine from this site the first time you use them, some thirty megabytes once; after that the work still happens entirely on your machine.
Why people convert PPTX to ODP
A PPTX file is a PowerPoint presentation. An ODP file is the presentation format of the OpenDocument family, the one used by LibreOffice Impress, Apache OpenOffice and a number of other free programs, and the one many public bodies and schools have chosen as their standard. Sooner or later the two worlds meet. A teacher receives slides made in PowerPoint and works on LibreOffice. A public office asks for presentations in an open format. A colleague on Linux cannot open what a colleague on Windows has sent. In every case the question is the same: how do I convert PPTX to ODP without having to rebuild the deck?
This page does that in your browser. Your PPTX is opened here, read slide by slide and written out as an ODP file that you can open in an open-source office suite, edit and share. Nothing is uploaded to a server, which matters when the deck contains figures that are not public, a client's name or material for an exam. Below you will find how the conversion works, what comes through, what does not and how to check the result before you stand in front of an audience.
One thing needs to be said at the start, because it decides whether you will be pleased with the result. What comes out is a plainer deck than what went in. The slides, their order and the placement of text and pictures are carried across, but the decoration is not. If you expect an exact copy, you will be disappointed, and if you expect a clean, editable skeleton that you finish in your own program, you will be well served.
How the conversion works
Your deck is read and rewritten
A PPTX is a package of files that describe slides in the language of PowerPoint. An ODP is a package that describes slides in the language of OpenDocument. The two languages are related in spirit but not in detail, so a conversion has to read each slide, work out what it contains and then write the same contents in the other language. Here, that all happens in your browser. Your PPTX is opened, every slide is read, and an ODP file is written out for you to download.
Every slide keeps its boxes where they were
The conversion pays attention to position. A text box on the left of a slide stays on the left, a picture in the corner stays in the corner, and the boxes keep their sizes. This is what makes the result usable: when you open the ODP, the slides look like skeletons of the originals, and you can see at once which text belongs to which slide.
The page size
The slide size is carried across as well. A widescreen deck stays widescreen, and a deck in the older four-to-three shape stays that way. You will not find your slides stretched or squeezed.
What is kept
Slides, order and page size
The slides are carried across in their original order, and the page size stays as it was. If your deck has forty slides, the ODP has forty slides, in the same sequence.
Text boxes and pictures at their own positions
Every text box and every picture comes through at its own position and size. Pictures are embedded in the new file, so the ODP is self-contained and can be moved without losing its images.
Bold, italic and bullet levels
Basic text formatting survives: bold and italic are kept, and bullet lists keep their levels, so a point and its sub-points remain a point and its sub-points.
Tables
Tables are kept, with the caveat in the next section: they become plain rows of text, so the information is there, and the grid styling is not.
What is not carried over
A drawing language of its own
Fonts, colours, backgrounds, gradients, shadows, charts, animations, transitions, speaker notes and master slides are not carried over. These are not small details. Each of them is a drawing language of its own, with rules that differ between the two formats, and a half-finished translation would look converted while being wrong. It is better for the result to be honestly plain than to look right and break when you open it.
What this means in practice
Expect the ODP to use the default look of the program that opens it. Your carefully chosen corporate font, the blue gradient behind the title and the shadow under the pictures will be gone. Charts will not be there as charts, and the animations that bring in your bullet points one by one will not play. Speaker notes will not appear in the notes pane. Master slides, the templates that give a deck its consistent look, are not transferred, so you will need to apply a template of your own in the new program.
Tables become plain rows
Tables are turned into plain rows of text. The content is preserved, but borders, shading and merged cells are not. If a table is central to your slide, plan to rebuild its formatting after the conversion.
Check before you present
Open the result and check it before you present from it. Go through the slides one by one, look for the places where something you rely on has gone, and fix them while you have time. This is good advice for any conversion between office formats, and it is the one thing that separates a smooth presentation from an embarrassing one.
How to convert PPTX to ODP here
Add your deck
Drop the PPTX onto the page or pick it from your device. It is opened inside your browser and is not uploaded.
Convert
Press the button. A deck of moderate size takes a few seconds, and a long one with many pictures takes longer. Leave the page open until it finishes.
Download and open
Download the ODP and open it in LibreOffice Impress or another program that reads the format. Go through the slides, apply a template or theme of your own and correct whatever needs correcting.
A closer look at PPTX and ODP
Two standards for the same job
PPTX belongs to the Office Open XML family, defined by Microsoft and later standardised. ODP belongs to OpenDocument, which was developed in the open and standardised as an alternative. Both are, at heart, packages of XML files and media. That is why a conversion is possible at all, and it is also why it is never perfect: the two formats describe the same ideas with different structures and different vocabulary.
Why an open format matters
An open format is one whose specification is public and whose use requires no licence. For a school, a municipality or a research institute, that means documents that will still be readable in thirty years, whichever software exists then. For a person who simply prefers free software, it means freedom to choose the program. That is a good reason to convert PPTX to ODP even when nobody has asked you to.
The role of the template
In PowerPoint, the look of a deck lives in the master slides. In ODP, it lives in the equivalent masters of OpenDocument. Because the masters are not transferred, the cleanest workflow is to set up the template in the new program first and then move the content into it, or to apply the template after you convert PPTX to ODP.
Common situations in detail
Moving from PowerPoint to LibreOffice
A person who changes from Microsoft Office to LibreOffice often has a folder of old decks. Converting them lets the new program edit them natively. For decks you will present again, take the time to restyle; for decks you only need to keep, the plain version may be enough.
Public bodies and open-format policies
Offices and organisations that require open formats often accept PPTX for sending but store ODP in their systems. If a form asks for an ODP, convert PPTX to ODP, check the result and attach it. Keep the PPTX as well, as the original.
Teachers and students on mixed systems
A class where some pupils use Windows with PowerPoint and others use Linux with LibreOffice is a classic setting for this conversion. The teacher shares an ODP, and everyone can open it. Since the formatting is plain, it is also a good moment to teach pupils how to apply a theme.
Extracting the text and pictures of a deck
Sometimes you do not care about the look of the slides and only need their words and images in an open format, for editing or for reuse. The plain ODP is exactly that: a skeleton of text and pictures in place.
Questions people ask before converting
Will it look identical to my PowerPoint deck?
No. The positions and the content are kept, but fonts, colours, backgrounds, effects, charts and animations are not. Expect a plainer deck.
Will my animations and transitions work?
No. They are not carried over. Add new ones in the program you use for the ODP.
Are my speaker notes kept?
No. Speaker notes are not carried over, so copy them out of the original if you need them.
Is my deck uploaded?
No. The conversion runs in your browser and the deck never leaves your device.
Can I convert the ODP back to PPTX?
Yes. ODP to PPTX works in the other direction, and the same limits apply: a round trip makes the deck plainer still, so work from the original.
Choosing wisely when you convert PPTX to ODP
Decide what you need from the result
Before you convert PPTX to ODP, ask what the new file is for. If it is for presenting, plan to restyle it. If it is for archiving, or for collecting the content in an open format, the plain version may be quite enough. Knowing the purpose tells you how much work lies ahead.
Simplify the source first
A deck made of simple slides with text boxes and pictures converts cleanly. A deck full of grouped shapes, SmartArt and layered effects converts into something much plainer. If you can, simplify the PPTX a little before you convert PPTX to ODP, and expect to rebuild the complicated slides.
Keep the original
The PPTX is the master. Keep it, because it holds everything the ODP lost. If you later need the full design, the animations or the notes, you will find them only in the original.
Test with a copy of one slide
If your deck is long and important, convert a short version first, with a few typical slides. See how the program treats them. If the result is acceptable, convert the whole deck with confidence.
Getting a good result after you convert PPTX to ODP
Start with a template in the new program
The fastest way to rescue the look of a deck is to open your presentation program, choose or create a template and apply it to the ODP. Because the converted slides carry no master of their own, they take on the template cleanly, and you can restore a consistent look in a few minutes instead of repairing slide after slide.
Fix the fonts once
Select all the text in the deck and set the font you want in a single step. When you convert PPTX to ODP, the fonts of the original are not transferred, so this one action replaces a long chain of manual corrections. If your organisation has a house font, install it on the machine first.
Rebuild charts from their data
A chart is not carried across as a chart. Open the original, copy its figures and make a new chart in the program you use for the ODP. For a few charts this takes minutes, and the new ones will be editable in the new environment, which is better than a picture of a chart that nobody can update.
Re-add the animations sparingly
Animations and transitions are gone. Think about whether you really need them. Many presenters find that a deck without animations is calmer and easier to follow. Add a few where they help, and leave the rest.
Save a second copy early
Once you convert PPTX to ODP and have restyled the deck, save it under a new name. Keep the plain version too, in case you want to start over with a different template.
Privacy and handling
Why local conversion matters for presentations
Presentations often hold what an organisation would rather keep inside: figures, plans, names of clients, drafts. Many online converters ask you to upload the deck to a server, process it and return it, and for a time a copy lives on a machine that you do not control. Here your own browser does the work, so the deck stays on your device.
What happens when you leave
When you close the page, the converted file disappears from the browser, so download it first. Nothing about your deck is kept.
If something goes wrong
The ODP opens with missing pictures or text
Compare it with the original. Some objects, such as charts or grouped shapes, are not carried over. Re-insert them in the new program.
The slides look different from the original
That is expected. Fonts, colours and backgrounds are not transferred, so the program applies its own defaults. Apply a theme or template to restore a consistent look.
The conversion fails on a very large deck
Everything happens on your device, so a deck with hundreds of large pictures may be too heavy for a phone. Try again on a computer, or split the deck into two parts.
Related presentation and document tools
The same family of tools covers the other common jobs. To go the opposite way, use ODP to PPTX. If you need a file that looks the same everywhere, PPTX to PDF and ODP to PDF turn a deck into a PDF. A PDF can be turned into editable slides again with PDF to PPTX or PDF to ODP. For text documents, DOCX to ODT and ODT to DOCX do for letters and reports what this page does for slides, and XLS to ODS does the same for spreadsheets.
A worked example
Say you are a teacher who has received a PowerPoint lesson of twenty-five slides, and your school computers run LibreOffice. You drop the PPTX here and press the button. A few seconds later you download an ODP with twenty-five slides, each with its text and pictures in place. The colours are gone and the title font is the default one, so you apply the school template, adjust two tables that came through as plain rows and save. The original PPTX stays in your folder in case you ever need the exact design.
A short checklist
Before converting
Know what the ODP is for. Keep the PPTX safe. Decide whether you will restyle the deck.
While converting
Stay on the page until the file is ready.
After converting
Open the ODP, go through every slide, apply a template and correct tables, charts and anything else that did not come across.
Common mistakes
Expecting an exact copy
Do not convert PPTX to ODP expecting the same fonts, colours and effects. They are not carried over.
Presenting without checking
Always open the result and go through it before you present from it.
Discarding the original
Keep the PPTX. It holds the design, the notes and the animations.
Your deck stays on your device
The conversion happens locally. Your deck is read by your own browser, rewritten there and handed back. Nothing is uploaded, so no copy ends up on a server and nobody else can read it. For presentations with sensitive content, that is the safe way to convert PPTX to ODP.
Summary
To convert PPTX to ODP here, drop the deck and press the button. Your PPTX is opened in your browser and written out as ODP. Every slide keeps its boxes where they were, and the slides, their order, the page size, text boxes and pictures at their own positions, bold and italic, bullet levels and tables come across. What comes out is a plainer deck than what went in: fonts, colours, backgrounds, gradients, shadows, charts, animations, transitions, speaker notes and master slides are not carried over, and tables become plain rows of text. Open the result and check it before you present from it. Nothing leaves your device.