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How to Convert HTML to OPML — Quick & Free

Fast, instant HTML to OPML conversion. No signup required. Just drop your .html file and get .opml in seconds.

256-bit TLS encryptionFiles deleted in 24hNo signup required

About HTML to OPML Conversion

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

Now for the details. HTML (HyperText Markup Language) is the standard language for web pages. OPML is a widely used file format. Converting between these two formats lets you convert between formats quickly.

Your HTML file is decoded and re-encoded as OPML. Converting HTML to OPML 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 HTML to OPML

  1. 1

    1. Upload HTML

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

  2. 2

    2. Select OPML

    Choose .opml 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 .opml file is ready. Download it directly or get all files as a zip archive.

What Happens When You Convert HTML to OPML

Your HTML file is decoded and re-encoded as OPML.

1

Your HTML file is uploaded and validated

2

The file is decoded (parsed into its raw data)

3

The data is re-encoded in OPML format

4

The converted file is ready for download

Format Comparison

.html

HTML

.html file

Extension.html
MIME Typetext/html
CategoryDocument
.opml

OPML

.opml file

Extension.opml
MIME Typetext/x-opml
CategoryDocument

Should You Convert HTML to OPML?

When to Convert

  • When you need a OPML file

Frequently Asked Questions

Is HTML to OPML conversion free?

Yes. CocoConvert offers free HTML to OPML 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 HTML to OPML 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 HTML file and the converted OPML file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.

Does converting HTML to OPML lose quality?

Converting HTML to OPML maintains high quality with CocoConvert's optimised encoder settings.

Can I convert OPML back to HTML?

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

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