Skip to content

How to Convert OTT to XHTML — Quick & Free

Fast, instant OTT to XHTML conversion. No signup required. Just drop your .ott file and get .xhtml in seconds.

256-bit TLS encryptionFiles deleted in 24hNo signup required

About OTT to XHTML Conversion

Short answer: yes, you can convert OTT to XHTML online for free, and quality is well preserved with the right settings. Just upload your .ott file to CocoConvert, pick XHTML as the output, and click Convert. The whole process takes seconds.

Now for the details. OTT is a widely used file format. XHTML is a widely used file format. Converting between these two formats lets you convert between formats quickly.

Your OTT file is decoded and re-encoded as XHTML. Converting OTT to XHTML maintains high quality with CocoConvert's optimised encoder settings.

CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.

Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.

How to Convert OTT to XHTML

  1. 1

    1. Upload OTT

    Drop your .ott file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.

  2. 2

    2. Select XHTML

    Choose .xhtml from the output dropdown. Settings are pre-configured for best results.

  3. 3

    3. Convert

    One click. The server handles all the heavy lifting using FFmpeg and Sharp.

  4. 4

    4. Download

    Your .xhtml file is ready. Download it directly or get all files as a zip archive.

What Happens When You Convert OTT to XHTML

Your OTT file is decoded and re-encoded as XHTML.

1

Your OTT file is uploaded and validated

2

The file is decoded (parsed into its raw data)

3

The data is re-encoded in XHTML format

4

The converted file is ready for download

Format Comparison

.ott

OTT

.ott file

Extension.ott
MIME Typeapplication/vnd.oasis.opendocument.text-template
CategoryDocument
.xhtml

XHTML

.xhtml file

Extension.xhtml
MIME Typeapplication/xhtml+xml
CategoryDocument

Should You Convert OTT to XHTML?

When to Convert

  • When you need a XHTML file

Frequently Asked Questions

Is OTT to XHTML conversion free?

Yes. CocoConvert offers free OTT to XHTML conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.

How fast is OTT to XHTML conversion?

Most files convert in 2–10 seconds depending on size. Large document files may take 30 seconds. Batch jobs process in parallel for maximum speed.

What happens to my files after conversion?

Your uploaded OTT file and the converted XHTML file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.

Does converting OTT to XHTML lose quality?

Converting OTT to XHTML maintains high quality with CocoConvert's optimised encoder settings.

Can I convert XHTML back to OTT?

Yes, CocoConvert supports XHTML to OTT conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.

Powered by — installed on our conversion workers
LibreOffice 25.x (headless)Gotenberg 8.x (sidecar)Ghostscript 10.x (-dSAFER)Pandoc 3.xqpdf 11.xpoppler-utils 24.x

Versions are pinned in our worker Dockerfile and re-built via CI on every change.