Extract text from MPEG-4 subtitles (TTXT)
To convert TTXT subtitles to another format, you need Subtitle Edit or other Text software.
To convert other file formats to the "Subtitle File" file type, you need software like Subtitle Edit or a similar tool.
The .TTXT file extension is primarily used for MPEG-4 Timed Text Subtitles. Defined by the ISO/IEC, this format stores subtitle text, timestamps, and basic styling instructions (like font size and color) for video files. It is typically embedded directly within MP4 or 3GP media containers as a dedicated subtitle track.
To open or edit these files, users typically rely on specialized extraction tools like MP4Box or advanced subtitle software such as Subtitle Edit. VLC media player can often play video streams containing embedded .TTXT data.
The major disadvantage of the .TTXT format is poor native support across modern platforms. Unlike the ubiquitous SRT or VTT formats, .TTXT files are rarely supported by HTML5 web players, smart TVs, or standard video editing timelines. It is a highly specific, rigid format that traps subtitle data inside a structure that most modern streaming platforms reject.
To ensure maximum compatibility, you must convert .TTXT to SRT (SubRip) for standard video playback, or VTT (WebVTT) for web-based hosting. Note that while core text and synchronization timings are preserved, complex layout data like dynamic text positioning or specific font colors will likely be lost during the conversion.
Because .TTXT utilizes specific XML-based timing nodes and headers, standard online text converters frequently fail to parse the synchronization correctly.
Convert.Guru analyzes your TTXT file, detects the exact format, and lets you read the text inside.
If you want to convert TTXT file to , you can use Subtitle Edit or similar software from the "Video Subtitle Storage" category. In the File menu, look for Save As… or Export….
To convert files to TTXT, try Subtitle Edit or another comparable tool in the "Video Subtitle Storage" category.
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 TTXT converter.