Extract text from osu! skins (OSK)
To convert OSK skins to another format, you need osu! or other Game software.
To convert other file formats to the "Game Skin Package" file type, you need software like osu! or a similar tool.
A .OSK file is a custom skin package utilized exclusively by the rhythm game osu!. It serves as an asset container for user interface graphics, cursor designs, hit sounds, and configuration instructions (via a skin.ini file) that alter the game's visual and audio experience.
The primary disadvantage of the .OSK format is its proprietary binding. It acts as an opaque wrapper on desktop environments, preventing users from previewing the internal graphics or listening to the audio assets without having the actual game client installed. Standard operating systems do not recognize the extension, which often causes frustration when players want to mix, match, or edit individual visual elements.
Under the hood, an .OSK file is structurally a standard ZIP archive. Users frequently need to convert or extract the package into a ZIP folder to access standard PNG images, WAV or MP3 audio files, and plain text. Once extracted, the individual components can be manipulated in third-party editors.
Standard online converters often fail to process .OSK files because they do not recognize the specialized game extension and lack archive extraction routines for niche formats. Just drag and drop your file onto convert.guru to identify the format, view its internal structure, and extract the embedded content effortlessly.
Convert.Guru analyzes your OSK file, detects the exact format, and lets you read the text inside.
Users also converted ZIP, RAR, OSU, PNG, OSZ, CUR, 7Z, WEBP, HIF, FLP, CDW, TSX and OSB files.
If you want to convert OSK file to ZIP, EXE, ISO, BIN, CUE, PAK, WAD, PK3, PK4, BSP, MAP or SAV, you can use osu! or similar software from the "Game Customization Asset" category. In the File menu, look for Save As… or Export….
To convert MOD, BIN, CFG, SCX, DAT, MPQ, LOG, CUE, INI, EXE, SCM or ISO files to OSK, try osu! or another comparable tool in the "Game Customization Asset" 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 OSK converter.