PHFTP (PHP HTTP FTP) is a simple and fast Web FTP application. You can upload, download and administer files on FTP servers without a local FTP client, even if you are behind firewalls and proxies. The only thing you need is a Web browser HTTP(S) connection. If you can browse the Internet at your workplace, you can now also establish a FTP connection to any FTP server your PHFTP installation server can connect to.
ida-syslog is a Web-based viewer for syslog data. It requires syslog data in a MySQL database. It uses AJAX and is based on jQuery and PHP. It is intended for use with rsyslog-mysql, but can be adapted to any table format via the config file. It has a fast UI with no page reloads, and can save search settings as templates for easy reuse. Tail mode and auto-loading of older entries when scrolling down. Fixes for use with Windows-Syslog-Tools (NTSyslog2, Snare).
documentr is a Web-based tool for editing and presenting software documentation. It allows you to easily maintain documentation for multiple products and product branches. Edits can easily be copied between branches, with merge conflicts being handled gracefully. It uses Markdown as its markup language, along with some extensions, and has a role-based permission system.
openDCIM is a Web-based data center inventory application which allows you to manage capacity and track assets throughout multiple data centers. There are some graphical elements to the system, but overall, the system is designed for keyboard-friendly (rather than click-happy) use. It is written in PHP and utilizes a MySQL backend for ease of deployment on nearly any LAMP-based build.