Free presentation converter, no sign-up and no upload
This presentation converter is free, needs no sign-up or login, and does not upload your slides anywhere. The deck is opened and converted inside your browser, so the file never leaves your device. Nothing is added to the result, no watermark and no footer.
Drop in a PowerPoint (PPTX) or an OpenDocument Presentation (ODP) and turn it into a PDF, a set of PNG or JPG images, plain text or Markdown. ODP files can also become PPTX. Going the other way, a PDF, PNG or JPG can be turned into a PPTX, which is handy when you only have a flat file but need something to present from.
It helps to know what a conversion can do. Slides are redrawn from their text, images and basic shapes. That keeps the content, the order and most of the look. Animations, transitions and some effects are dropped, and unusual fonts or elaborate shape work may look different from the original. For anything that has to be pixel-exact, open the result and check it first.
A PDF that becomes a PPTX is a special case. Each page becomes one image slide, so the picture is faithful but the text is not editable. Converting the other direction, to Markdown or plain text, keeps only the words on each slide.
- Free
- No sign-up
- Never uploaded
- No watermark
Your files are converted on your device and never uploaded.
How to convert
- Drag your PPTX or ODP files onto the page, or pick them with the file chooser.
- Confirm that each file was recognised as a presentation.
- Choose a target: PDF for sharing, PNG or JPG for one picture per slide, or TXT or Markdown for the words.
- Set any options shown for that target.
- Press Convert and let the slides process on your device.
- Download one file at a time, or collect the batch as a single ZIP.
Features
- Reads PPTX and ODP presentations.
- Writes PDF, PNG, JPG, TXT and Markdown from a deck.
- Converts ODP to PPTX.
- Builds a PPTX from a PDF, a PNG or a JPG.
- Keeps text, images and basic shapes, and drops animations and transitions.
- Batch conversion with a ZIP download.
- No engine download is needed.
- Free, with no sign-up, no upload and no watermark.
Supported formats
| Format | Read | Write | Notes |
|---|---|---|---|
| PDF.pdf | Yes | Yes | Fixed-layout document format that looks the same on every device. |
| Markdown.md | Yes | Yes | Plain text with light markup for headings, lists, links and emphasis. |
| Plain text (TXT).txt | Yes | Yes | Unformatted text with no styles, images or layout. |
| PowerPoint (PPTX).pptx | Yes | Yes | The default PowerPoint format since 2007. |
| OpenDocument Presentation (ODP).odp | Yes | No | ODP can be opened but not created here; convert it to PDF, PPTX or images. |
About the formats
About PPTX
PPTX is the default PowerPoint format since 2007. It is a ZIP of XML files that hold slides, layouts and media. It can be read and written here.
Because PPTX can carry animations, embedded video and custom effects, a converted copy is a close redraw rather than an exact clone.
About ODP
ODP is the presentation format of LibreOffice Impress and OpenOffice, an open ISO standard (ISO/IEC 26300). It can be opened here but not created.
To get a file that PowerPoint, Keynote and Google Slides all open, convert the ODP to PPTX or to PDF.
Slides to PDF and images
A PDF keeps the slides in a fixed layout that looks the same on every device, which is the safe choice for sending a deck to someone who only needs to read it. A PDF cannot be edited like slides.
PNG and JPG give one picture per slide. PNG is lossless and sharp for text and diagrams. JPG is smaller and suits slides full of photographs, but it has no transparency and is lossy.
Slides to text and Markdown
TXT and Markdown keep only the slide text, in order. Images, shapes, layout and styling are not included. This is useful for pulling an outline, speaker material or a transcript-like summary out of a deck.
PDF or images to PPTX
A PDF becomes a PPTX with one image slide per page, so the look is kept and the words are not editable. A PNG or JPG becomes a slide holding that image.
Use this when you need a presentable file from a flat source, not when you want to edit the text.
Privacy: how it works
- Your slides stay on your device. The page reads each file with the browser's file API, converts it with code running in the tab, and hands the result back as a download. No upload happens, so there is no copy of your file on our servers to protect, delete or leak.
- There is nothing to sign up for and no login. The converter does not ask for an email address, and it does not need to know who you are to do its job.
- You can check the claim yourself: open your browser developer tools, watch the Network tab while a file converts, and you will see no request that carries your file.
- Decks often hold unfinished figures, client names or internal plans. Since the file is never sent to a server, a draft or confidential presentation is processed the same way as a harmless one, on your device only.
- Notes and hidden slides are part of the file you drop in. Check the output if you plan to share it, because what you see in a PDF is what you send.
Tips
- Convert to PDF before emailing a deck, so fonts and layout cannot change on the other person's machine.
- Check the first and last slides of the result. Layout drift usually shows up on busy slides.
- If a slide relies on an animation to reveal text, expect it to appear all at once after conversion.
- Pick PNG for slides with diagrams and small text, and JPG for photo-heavy slides where file size matters.
- Use Markdown output to pull an outline into your notes, and keep the original deck for the visuals.
- Convert ODP to PPTX when you must hand a LibreOffice deck to someone who uses PowerPoint.
- Remember that a PDF turned into slides has image pages, so the text cannot be searched or edited in the new deck.
- Keep your original file. A conversion redraws the slides, and you may want the first version later.
Frequently asked questions
Is it really free?
Yes. There is no price, no trial, no credit card and no watermark added to your results. Ulkaa Tool does the conversion with your own device, so there is no server bill to pass on to you.
Are my files uploaded?
No. Your slides are read and converted inside your browser and are never sent to Ulkaa or to anyone else. The result is created on your device and you save it from there.
Do I need an account?
No. There is no sign-up and no login. Open the page, add your files and convert. An Ulkaa account is not needed for anything on this tool.
Is there a file size limit?
No limit is set by us. The real limit is your device: the conversion uses your own memory and processor, so very large files can be slow, and a very big batch may need to be split into smaller runs.