Extract text from key and wallet files (KEYSTORE)
To convert KEYSTORE key files to another format, you need Java Keytool or other Encoded software.
To convert other file formats to the "Encrypted Certificate Repository" file type, you need software like Java Keytool or a similar tool.
A .keystore file is a secure storage container primarily used by the Java platform to manage cryptographic keys and X.509 certificates. Developers rely on these files to securely store private keys for Android application signing or to hold SSL/TLS certificates for enterprise web servers. Less commonly, modern Web3 platforms like Ethereum use the .keystore extension for JSON-formatted files that contain encrypted blockchain wallet credentials.
The biggest disadvantage of the standard Java KeyStore (JKS) format is its highly proprietary nature. It is a legacy standard that traditionally requires the clunky Java keytool command-line utility to manage. Modern operating systems and non-Java servers generally refuse to read it. Furthermore, you cannot simply open a .keystore file in a text editor because the contents are heavily encrypted. If you lose the keystore password, your private keys are permanently unrecoverable, which can completely block you from pushing updates to an Android app.
To ensure compatibility with modern infrastructure like Nginx or Apache, you almost always need to convert a .keystore file to industry-standard formats like P12 (PKCS#12), PEM, CRT, or KEY. Converting the file does not lose data, provided you have the original password to unlock the vault and extract the keys.
Because this file format is essentially an encrypted vault, it is incredibly difficult to convert using standard tools. Most online converters fail because they cannot decrypt the payload without the correct credentials and specialized cryptographic libraries. Often, only the original software or command-line utilities like keytool or OpenSSL can properly read or export the data. We can inspect the file, and determine if it is a binary Java container or a text-based JSON Ethereum wallet. If our analysis detects a supported underlying structure, partial viewing or metadata extraction may still be possible.
Convert.Guru analyzes your KEYSTORE file, detects the exact format, and lets you read the text inside.
Users also converted JKS, P12, CRT, PEM, TXT, PDF, JCK, CACERTS and PFX files.
If you want to convert KEYSTORE file to JKS, PEM, PFX, P12, CRT, BASE64, HEX, BIN, ENC, CRYPT, AES or DES, 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 KEYSTORE, 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 KEYSTORE converter.