Extract text from HTML Help projects (HHP)
To convert HHP projects to another format, you need Microsoft HTML Help Workshop or other Developer software.
To convert other file formats to the "Help Project File" file type, you need software like Microsoft HTML Help Workshop or a similar tool.
The .HHP (HTML Help Project) file is a plain text configuration file used by Microsoft HTML Help Workshop and modern authoring tools like HelpNDoc to build compiled help modules. It acts as the master blueprint, instructing the compiler how to combine individual HTML topics, a HHC table of contents, and a HHK index into a single, distributable CHM file.
The main disadvantage of the .HHP format is that it is a legacy, proprietary standard originally introduced for Windows 98. More importantly, an .HHP file contains no actual documentation text or images. It only contains compiler settings, window definitions, and relative file paths. Because of this, it is completely useless if separated from its source files. Standard online converters always fail to process .HHP files because users attempt to upload the project file without the referenced HTML content.
Users typically want to convert .HHP projects into modern formats like PDF, DOCX, or responsive WebHelp to escape the outdated CHM standard. To achieve this, you must migrate the entire project folder using specialized help authoring software.
This file format is fundamentally difficult to convert in isolation. However, just drag and drop your .HHP file into convert.guru to identify the format, view its internal text structure, and see exactly which HTML source files your project is referencing. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your HHP file, detects the exact format, and lets you read the text inside.
Users also converted HCW, HHC and ADP files.
If you want to convert HHP file to HTML, HTM, CSS, JS, PHP, ASP, ASPX, JSP, JSPX, PY, RB or PL, you can use Microsoft HTML Help Workshop or similar software from the "Help documentation project configuration" 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 HHP, try Microsoft HTML Help Workshop or another comparable tool in the "Help documentation project configuration" 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 HHP converter.