Extract text from Java KeyStore files (JKS)
To convert JKS keystores to another format, you need Java keytool or other Encoded software.
To convert other file formats to the "Cryptographic KeyStore File" file type, you need software like Java keytool or a similar tool.
A .JKS file is a proprietary Java KeyStore file, acting as a secure repository for cryptographic keys, authorization certificates, and private keys. This format is heavily relied upon by older Java applications to handle SSL encryption and code signing.
Historically, these files were created and managed strictly via the Java keytool utility provided by Oracle. The primary disadvantage of the .JKS format is its proprietary nature. It is completely isolated within the Java ecosystem and is not natively supported by standard web browsers, OS-level certificate managers, or widespread web servers like Nginx or Apache. Furthermore, starting with Java 9, the .JKS format was officially deprecated in favor of the industry-standard PKCS12 format.
To use Java certificates elsewhere, users typically need to convert .JKS to P12 (PKCS12) for modern compatibility, or extract the contents to PEM, CRT, or KEY files for deployment on web servers. This usually involves complex command-line operations.
Because this is a secure, password-protected format, standard online converters fail to process it. It is a closed, proprietary file designed explicitly to prevent unauthorized access.
Convert.Guru analyzes your JKS file, detects the exact format, and lets you read the text inside.
Users also converted KEYSTORE, CERT, TXT, PDF, JPG, PFX, SSL, P12, P7S, ZIP, CRT, JSX and PNG files.
If you want to convert JKS file to P12, PEM, BASE64, HEX, BIN, ENC, CRYPT, AES, DES, RSA, PGP or GPG, you can use Java keytool or similar software from the "Cryptographic Key Storage" 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 JKS, try Java keytool or another comparable tool in the "Cryptographic Key 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 JKS converter.