Click the "Select File" button above, and choose your CKI file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert CKI to another file type
To convert CKI save files to another format, you need Cookie Clicker or other Game software.
Convert a file to CKI
To convert other file formats to the "Game Save File" file type, you need software like Cookie Clicker or a similar tool.
About CKI files
The .CKI file format is primarily a Cookie Clicker Game Save File created by Orteil. It stores a player's continuous progress, including total cookies baked, buildings purchased, and upgrades unlocked. A secondary, older use for the format is as a dBase Check-in File utilized by Visual dBase for source control management during database development.
Users often need to convert or open .CKI files to backup their game progress, transfer saves between different platforms (like moving from a web browser to Steam), or manually inspect the data. The primary disadvantage of this format is its proprietary and obscure nature. For Cookie Clicker, the data is not saved in plain text; it is an appended Base64-encoded text string combined with a proprietary checksum hash to prevent cheating. Standard web browsers and document editors cannot natively interpret this data, making it highly susceptible to accidental corruption if modified incorrectly.
Standard online converters fail to process .CKI files because they lack the specific decoding logic required to parse the game's proprietary string structure. If you need to view or manipulate the save data, extracting the underlying Base64 string to standard TXT or JSON formats is the most logical conversion target. However, be aware that manually changing values in the converted text will invalidate the save unless the security hash is perfectly recalculated.
Because this is a closed, proprietary format, only the original software - such as Cookie Clicker or dBase - can properly read or export the structured data. Despite these restrictions, convert.guru acts as your pragmatic workaround. Just drag and drop your file to identify the format, inspect the file, and show text or internal content. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your CKI file, detects the exact format, and lets you read the text inside.
If you want to convert CKI file to , you can use Cookie Clicker or similar software from the "Game Save Data" category. In the File menu, look for Save As… or Export….
To convert files to CKI, try Cookie Clicker or another comparable tool in the "Game Save Data" category.
The CKI 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 CKI converter.