Click the "Select File" button above, and choose your QS file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert QS to another file type
To convert your QS file to another format, you need Opera or other Web software.
Convert a file to QS
To convert other file formats to the "Browser Data File" file type, you need software like Opera or a similar tool.
About QS files
The .QS file extension predominantly serves two distinct roles in the digital ecosystem, often leading to user confusion. Primarily (approx. 72% of occurrences), it functions as a Saved Browser Session data file associated with the Opera web browser. These files store the state of open tabs, history, and window positions, allowing users to restore a browsing session after a crash or restart. However, they are often proprietary or binary-encoded, making them difficult to open outside the browser itself - a major issue for users attempting to recover lost URLs or archive browsing data.
Alternatively, a .QS file is a Qt Script, a JavaScript-based scripting format used by the Qt Framework for application automation and installation logic (specifically installscript.qs). Unlike the Opera variant, these are plain text files. Developers and sysadmins frequently need to convert these scripts to PDF for documentation, HTML for web display, or TXT for cross-platform editing. Users may also mistakenly associate this extension with Quicken (which uses QDF) or QuickTime (which uses MOV or .QTS), leading to compatibility errors when attempting to open them in financial or media software.
Convert.Guru analyzes your QS file, detects the exact format, and lets you read the text inside.
FAQ
If you want to convert QS file to MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC, APE or WV, you can use Opera or similar software from the "Saved Browser Session" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to QS, try Opera or another comparable tool in the "Saved Browser Session" category.
The QS 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 QS converter.