Convert KiriKiri and KeepSafe files (KSD) online for free
The converter easily converts your KSD save files to various formats - free and online. No KiriKiri or other Game software needed.
To convert other file formats to the "Visual Novel Save Data" file type, you need software like KiriKiri or a similar tool.
The .KSD file extension is notoriously fragmented, serving primarily as KiriKiri and KAG Engine visual novel game saves, or as encrypted photo vault files used by the KeepSafe mobile app. In rare cases, it also functions as an audio preset file for Native Instruments Massive or Korg sample data.
The biggest challenge with .KSD files is their proprietary and locked-down nature. A .KSD game save is useless outside its specific visual novel engine and is often encoded in UTF-16 (LE), making it unreadable in standard text editors. Meanwhile, KeepSafe uses .KSD to lock images away from mobile galleries. These files are typically encrypted PNG or JPG images with altered headers. Users frequently struggle with this format because it requires the original app and a PIN to view, completely preventing native browser or desktop access. Furthermore, older audio presets require legacy software just to open.
To make these files usable, conversion is highly recommended. For visual novel modding or debugging, convert KiriKiri .KSD files to plain TXT or JSON. If you are managing legacy audio presets, migrate them to NMSV. For extracting cached images, converting to standard PNG or JPG is essential. Just drag and drop your file here to analyze and convert it - free, online, and without installing software. We will automatically detect the underlying signature of your file and offer the best realistic conversion options.
Use Convert.Guru to open and convert your KSD file.
Users also converted FULL, ORIGINAL, JPG, NGRR, JS, PNG, MID, DMP, TXT, SPV, YPF, CMV and XP3 files.
If you want to convert KSD file to NMSV, BASE64, HEX, BIN, ENC, CRYPT, AES, DES, RSA, PGP, GPG or ASC, you can use KiriKiri or similar software from the "Game Saves & Encrypted Photos" category. In the File menu, look for Save As… or Export….
To convert CER, BIN, PEM, DER, KEY, P7S, PFX, ENC, P12, BASE64, P7B or HEX files to KSD, try KiriKiri or another comparable tool in the "Game Saves & Encrypted Photos" 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 KSD converter.