Extract text from REQ files
To convert your REQ file to another format, you need OpenSSL or other System software.
To convert other file formats to the "Security Certificate" file type, you need software like OpenSSL or a similar tool.
A .REQ file acts as a digital application form known as a Certificate Signing Request (CSR). Generated by server software like Microsoft IIS or OpenSSL, this file contains your public key and verified identity details (such as the Common Name or Organization) which must be sent to a Certificate Authority (CA) to obtain a valid SSL/TLS certificate.
While .REQ files are technically plain text encoded in Base64 (PEM format), they are not designed for human readability. Trying to open them directly often results in an error or displays a meaningless block of alphanumeric characters enclosed in -----BEGIN CERTIFICATE REQUEST----- headers. Users frequently face challenges when legacy systems require the binary DER format instead of the standard text-based format, or when they need to verify the encrypted details inside the request without using complex command-line tools.
For inspection and debugging, convert .REQ to TXT to view the raw code string. To ensure compatibility with Java-based or Windows legacy environments, convert .REQ to DER. For general management, ensure the file is saved as PEM if your server requires that specific extension.
Convert.Guru analyzes your REQ file, detects the exact format, and lets you read the text inside.
Users also converted CER, KEY, REQW, XML, CSR, REC, BIN, PDF, PEM, P7B and DER files.
If you want to convert REQ file to CSR, PEM, TMP, TEMP, CACHE, LOG, BAK, OLD, NEW, PART, DOWNLOAD or CRDOWNLOAD, you can use OpenSSL or similar software from the "SSL Certificate Application" category. In the File menu, look for Save As… or Export….
To convert DEVICE, CACHE, SOCK, SYMLINK, PID, MOUNT, FIFO, LOG, PIPE, TMP, JUNCTION or TEMP files to REQ, try OpenSSL or another comparable tool in the "SSL Certificate Application" 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 REQ converter.