DZI Converter

Extract text from DZI files


Drop or upload your .DZI file
✈

How to extract text from your DZI file

  1. Click the "Select File" button above, and choose your DZI file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert DZI to another file type

To convert your DZI file to another format, you need OpenSeadragon or other Web software.

Convert a file to DZI

To convert other file formats to the "Image Pyramid Descriptor" file type, you need software like OpenSeadragon or a similar tool.


About DZI files

A .DZI file is most frequently a Deep Zoom Image descriptor, an XML-based format originally developed by Microsoft for efficiently streaming high-resolution images over the web. Unlike a standard JPG or PNG, the .DZI file contains no actual image data; instead, it acts as a roadmap, defining the dimensions and tile overlap for a corresponding _files folder where the actual image segments (tiles) are stored. This creates a significant downside: if you try to open a .DZI in Adobe Photoshop or a standard photo viewer, you will either see an error or a screen full of XML code. Furthermore, the file is useless without its accompanying subdirectory of image tiles. A secondary, unrelated use of the extension is for Bilibili video cache segments, which users often find cluttering their storage and wish to convert to playable MP4 video. For Deep Zoom users, the goal is often to "stitch" the tiled pyramid back into a single high-quality TIFF or JPG for printing or archiving. For Bilibili users, the intent is merging segments into a standard video format.

Convert.Guru analyzes your DZI file, detects the exact format, and lets you read the text inside.

Users also converted JPG, PNG, TIF, NOT and 3DXML files.


FAQ

If you want to convert DZI file to , you can use OpenSeadragon or similar software from the "Deep Zoom Image Descriptor" category. In the File menu, look for Save As… or Export….

To convert files to DZI, try OpenSeadragon or another comparable tool in the "Deep Zoom Image Descriptor" category.



The DZI Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our DZI converter.