Free online OPML to ITMZ converter
Convert hierarchical OPML outlines into editable iThoughts ITMZ mind maps.
Convert OPML to ITMZ online - free
Your file is processed instantly and deleted as soon as you download it.
Import a file from a URL
Paste a direct link to the file. We download it to our server and it is converted exactly like an upload.
How it works
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Upload your .opml file
Click to browse to select your file you want to convert or simply drag & drop your file into selected area.
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Perform .opml to .itmz conversion
After successful file upload, click to convert when you are ready.
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Download converted .itmz file
Conversion result is ready to download.
How to convert opml to itmz file
- Mind maps and flowcharts
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101convert.com assistant bot
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Converting an OPML outline to ITMZ is useful when an iThoughts-compatible mind-mapping application requires its native document format. The conversion turns the OPML hierarchy into an editable mind map for arranging, annotating, and sharing.
What the OPML format is
OPML, or Outline Processor Markup Language, is an XML-based format for hierarchical outlines. In mind-mapping workflows, it commonly stores nested topics and optional attributes rather than a finished visual map.
Outliners, RSS readers, note-taking applications, and some mind-mapping programs create OPML files. You may encounter .opml exports when moving an outline between applications, backing up a subscription list, or importing a text hierarchy into a mind-map editor.
What the ITMZ format is
ITMZ is the native mind-map document format associated with iThoughts and iThoughtsX. It is intended for editable maps containing branches, topic structure, notes, and application-specific map data.
Use ITMZ when the recipient uses iThoughts-compatible software or when you need to continue editing the imported hierarchy as a mind map rather than as plain outline data. ITMZ is more application-specific than OPML, so it may preserve map information that a general outline exchange format cannot represent.
How to actually convert OPML to ITMZ
Using the online converter
- Open the OPML to ITMZ converter on 101convert.com.
- Choose
.opmlas the input format and.itmzas the output format. - Upload the OPML file or select it from your device.
- Start the conversion and download the resulting ITMZ file when processing finishes.
- Open the downloaded file in iThoughts or iThoughtsX and check the branch hierarchy before sharing or editing it.
This option requires no installed conversion software and is available free through the website.
Using iThoughts or iThoughtsX
- Open iThoughts or iThoughtsX.
- Choose File → Open or File → Import, then select the
.opmlfile. - Review the imported outline and apply the desired map layout, such as radial, tree, or right-facing branches.
- Save the document with File → Save As or use the application’s ITMZ export command, then select
.itmzif the format list is shown. - Reopen the saved file to verify that branches, notes, and labels remain available.
Quality and compatibility limitations
OPML primarily carries nested outline relationships. It normally does not preserve a source application’s exact branch positions, colors, icons, images, connectors, summaries, or advanced mind-map styling, so these elements may need manual reconstruction after conversion.
OPML attributes and notes may import only when the receiving application maps those fields to ITMZ properties. Test a copy first if the file contains notes, links, metadata, or custom attributes that must be retained.
Use an ITMZ version supported by the recipient’s iThoughts software. A newer application may save features that older versions cannot read, while non-iThoughts mind-mapping applications may not support ITMZ at all.
Note: This opml to itmz conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.
OPML vs ITMZ: format comparison
How the OPML and ITMZ formats compare on the properties that matter most for this conversion.
| Property | .OPML Outline Processor Markup Language | .ITMZ iThoughts mind map archive |
|---|---|---|
| Open standard | Yes | No |
| Compression | Uncompressed | — |
| Typical file size | Small | Medium |
| Opens in a web browser | Yes, natively | No |
| Further editing | Easy | Easy |
| Metadata support | Basic | Basic |
| Plain-text readable | Yes | No |
| Best used for | Data exchange | Professional production |
| Introduced | 2000 | — |
| Developer | UserLand Software | Toketaware Ltd. |
| MIME type | text/x-opml | — |
Frequently asked questions
Is the OPML to ITMZ converter free?
Yes, converting OPML to ITMZ on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.
How large can my OPML file be?
You can upload OPML files up to 50 MB and convert up to 20 files at once in a single batch.
What happens to my uploaded files?
Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.
Do I need to install any software to convert OPML to ITMZ?
No. The OPML to ITMZ conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.
Did the conversion fail?
In most cases, the cause is an incorrect file format. Please upload a valid OPML file for this OPML to ITMZ conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.