Click the "Select File" button above, and choose your FCGI file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert FCGI to another file type
To convert FCGI scripts to another format, you need Nginx or other Web software.
Convert a file to FCGI
To convert other file formats to the "FastCGI Web Application" file type, you need software like Nginx or a similar tool.
About FCGI files
The .FCGI file extension is primarily used for FastCGI web application scripts and compiled executables. FastCGI is a protocol that interfaces interactive programs with a web server like Nginx or Apache. Unlike standard CGI, which spawns a new server process for every HTTP request, FastCGI maintains persistent processes. This drastically reduces server load and speeds up web applications. Users typically encounter .FCGI files accidentally when a web server is misconfigured. Instead of running the script to generate a web page, the server incorrectly forces your browser to download the raw file. Depending on the server setup, this file might be a plain-text script written in Perl, Python, or Ruby, or it could be a compiled ELF Linux binary often used by systems like the IIPImage Server. A secondary use for .FCGI files is as Proxy Auto-Configuration (PAC) scripts in ChromeOS. Converting a .FCGI file is unusual because it is not a standard document. It is backend source code or machine instructions. If the file is plain text, the best target formats are .TXT, .PY, or .PL to safely review the code. Standard online converters fail to process .FCGI files because they do not know how to handle raw server binaries. Often only the original server software can properly read or execute the data. convert.guru can still identify the file 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. Just drag and drop your file to see what it is and convert it if supported.
Convert.Guru analyzes your FCGI file, detects the exact format, and lets you read the text inside.
If you want to convert FCGI file to HTML, HTM, CSS, JS, PHP, ASP, ASPX, JSP, JSPX, PY, RB or PL, you can use Nginx or similar software from the "Server-side Web Application Script" category. In the File menu, look for Save As… or Export….
To convert RSS, CSS, CGI, SITEMAP, PL, WEBMANIFEST, JSON, JS, XML, HTML, ICO or HTM files to FCGI, try Nginx or another comparable tool in the "Server-side Web Application Script" category.
The FCGI 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 FCGI converter.