Opening IDX Files

The IDX file type is primarily associated with VobSub.

IDX	File extension: IDX
	File type:	subtitle index

What is an IDX file

IDX files mostly belong to VobSub by Gabest. IDX is the filename extension of indexes created and used by various programs. The contents of this file is usually saved as plain text and they are primarily used for search operations. ArcGiS, ICQ, WordPerfect, and VobSub are among tools that use IDX indexes. VobSub, for example, uses an IDX file to save indexes. Navteq-compatible and Toyota Touch vehicle navigation systems used map indexes and navigation data saved in different IDX formats. World of Warcraft saves game data in its IDX file. Database management systems such as Alpha Anywhere and FoxPro save a database table index as an IDX file.

How can I open an IDX file?

You need a suitable software like VobSub to open an IDX file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your IDX file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a IDX file directly in the browser:. Just drag the file onto this browser window and drop it.

Online IDX File Viewer

Choose your .idx file to view

or drag and drop it here

Online File Viewer

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How to extract texts from IDX files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

You can extract texts from IDX file or capture a preview screenshot using our online IDX file viewer:

To do this, click the button "Choose your .idx file to view" on this page.
Your IDX file will then be displayed in the browser.
Now click on "Save as..." at the top of the page.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Download the converted file.

Programs that open and convert IDX files:

VobSub by Gabest
See the previous paragraphs to learn more about the main application. IDX files are often referred to as VobSub videos because this type of file is primarily created or used by this software.
Alpha Anywhere (index) by Alpha Software
Alpha Anywhere is a database-driven application development environment. It uses an IDX file to save the index of a database index. This file format is classified as Database.
Android (gallery thumbnails) by Open Handset Alliance
Android is an open source operating system which uses a modified version of Linux kernel. Some flavors of Android save gallery thumbnails in an IDX file. This file format is classified as System.
AOL Mail (email database index) by AOL
AOL Mail is a free email client available as a web application. It saves an index of its email database in an IDX file. This file format is classified as Database.
ArcGIS (datasets geocoding index) by ESRI
ArcGIS is a geospatial data analysis, mapping, and visualization software suite. Its read-only dataset is saved in an IDX file. This file format is classified as Simple text file.
CA-Visual Objects (index) by Computer Associates
CA-Visual Objects is a discontinued rapid application development environment for building C++ applications. It saved an application's index in an IDX file. This file format is classified as Simple text file.
Clip Gallery (index) by Microsoft
Clip Gallery is a discontinued utility that was part of older versions of Office productivity software suite. It saved the index of clip arts in an IDX file. This file format is classified as Simple text file.
Complete Works (index) by Toplevel Computing
Complete Works is a discontinued word processing application for MS-DOS. It saved an index of files in an IDX file. This file format is classified as Data.
Creo (index) by PTC
Creo is a computer-aided industrial product design and manufacturing software. It uses an index saved in a text-encoded IDX file. This file format is classified as Simple text file.
ICQ (index) by ICQ
ICQ is an instant messaging application and service compatible with desktop and mobile platforms. It saves an index in an IDX file. This file format is classified as Simple text file.
Identity Manager (database index) by Broadcom
Identity Manager is an application that manages objects, user/group credentials, and permissions used by Broadcom (previously Symantec) applications. It saves its relational database index in an IDX file. This file format is classified as Database.
Java (applet cache index) by Oracle
Java is a cross-platform application development environment and programing language. It saves an applet's cache index in an IDX file. This file format is classified as Developer.
LaTeX (index) by The LaTeX Project
LaTeX is a TeX-based technical document typesetting environment. It uses an IDX file to save the index of all documents in a project. This file format is classified as Simple text file.
Lyra (music track index) by RCA
Lyra is a discontinued portable handheld MP3 player device. It used an IDX file to save an index of music track information. This file format is classified as Simple text file.
Navteq (navigation data) by Here
Navteq is a proprietary GPS/navigation database system for various brands of vehicles. It saves navigation map data in an IDX file. This file format is classified as GIS.
Nero (disc data index) by Nero
Nero is a multimedia software suite for authoring, burning, and ripping compact discs. It saves the file index of a CD/DVD project in an IDX file. This file format is classified as Data.
NoX (game data) by Westwood
NoX is a discontinued action role-playing video game for Windows desktop. Various data in this game are saved in IDX files. This file format is classified as Game.
Outlook Express (mailbox index) by Microsoft
Outlook Express is a discontinued email client and news aggregation software for older Windows and macOS platforms. It saved its mailbox index in an IDX file. This file format is classified as Simple text file.
Proteus (library index) by Lab Center
Proteus is a printed circuit board design, circuit simulation, and Internet of Things development software. It saves the index of an Arduino library (LIB) in an IDX file. This file format is classified as Simple text file.
SIMATIC STEP 7 (project data index) by Siemens
SIMATIC STEP 7 is a programmable logic controller development and configuration environment. Its PEData.idx file contains the index of all files in a project. This file format is classified as Data.
Sublime (index) by Sublime
Sublime is a lightweight program for editing source code and plain text files. It can be used to read an IDX file containing an indexes pointing to data used by various programs. An example of such IDX file is the index of SEC filings. This file format is classified as Simple text file.
Toyota Touch (navigation map index) by Toyota
Toyota Touch is a GPS navigation and communication device built into the dashboard of some Toyota vehicles. It saves a GPS navigation map indexes in an IDX file. This file format is classified as GIS.
Visual FoxPro (index) by Microsoft
Visual FoxPro is a discontinued database development environment and object oriented programming language. It saved database indexes in IDX files. This file format is classified as Database.
WordPerfect (index) by Corel
WordPerfect is an office productivity software suite for Windows users. Its QuickFinder utility saves an index of files in an IDX file. This file format is classified as Simple text file. Related links: QuickFinder
World of Warcraft (game data) by Blizzard
World of Warcraft is a massively multiplayer online roleplaying action video game client for Windows users. It uses data saved in an IDX file. This file format is classified as Game.

IDX file format:

To view or edit IDX files you need to know the file format, because it determines how the data in this file is stored. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. So a detailed analysis of a file is vital in order to determine the format and the associated program. Our examination of the IDX files comes to the following conclusion:

The IDX file extension is very common and includes a lot of different file formats for different programs. The two most popular formats are as follows:

20% of all IDX files belong to Android gallery thumbnails. These are binary files, so they do not contain words or text. The average file size is 360 KB with most files being between 48 KB and 960 KB in size. The file type was developed only in the last few years. imgcache.idx or photo_blob.idx is a typical file name. Such IDX files store data about blob, thumbnail, photo, micro, geocoding, screen, cloudimgcache and bookmark.
3% of all IDX files belong to VobSub Index. The contents of these files are easily readable with a text editor. The file size is in the range of 10 KB to 260 KB. The keywords # VobSub index file, v7 (do not modify this line!), org: 0, 0, scale: 100%, 100%, # Frame size, # Origin - upper-left corner, # Scaling, BDSup, Created, # (it usually happens after vob id changes), Alpha, delay: [sign]hh:mm:ss:ms, insert gaps, repair, this way and you can insert gaps this way are typical for these files. These files are attributed to downloaded movies, bdrip, dvdrip, xvid and subtitles.

All other IDX files (77%) have different formats, often, for example, Description, DFS, tOc, ZZZZ, FancyShrinkingDictionary, DEVICE, AOLDB and IDX. Files like these are sometimes linked to subsys, data, pack, dmrc, sadsr, services or beta. If you want to find out what your IDX file contains, drag and drop it onto this page.

Technical Data for IDX File Extension

File classification:

Video

Related files:

blob, dat, index, sub, 1, lgh, idk, plf, spiff, icq, ixd, avc, idx3-ubyte, pdx, blb, ibx, dav, ldx, check, hts

Mime type:

application/octet-stream

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: PcaCallerFile, FileType: pcAnywhere Caller Index File

ProgramID: QFIndexFile, FileType: QuickFinder Information File

ProgramID: VobSubFile
EXEFile: notepad.exe %1

ProgramID: WinEdt.idx
EXEFile: %ProgramFiles%\WinEdt Team\WinEdt\WinEdt.exe %1

ProgramID: ALShow.IDX
EXEFile: %ProgramFiles%\ESTsoft\ALShow\ALShow.exe

Show all 5 listings To Top

an idx subtitle index is a special file format by Gabest and should only be edited and saved with the appropriate software.

How to solve problems with IDX files

Associate the IDX file extension with the correct application.
Update your software that should actually open subtitle indexes. Because only the current version supports the latest IDX file format. Search, therefore, e.g. on the Gabest manufacturer website after an available VobSub update.
To make sure that your IDX file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .IDX file online - secure, fast, and no downloads needed.