Encrypted, deduplicated backup tool, runs on Linux, *BSD, OS X and Windows.

Program to allow a Unix machine to open documents on a Windows machine (for example, sending commands back to your Windows desktop machine from a Unix server you've connected to from there).

See the output of several compilers in your web browser.
In addition to C++, it now supports Go, Rust and D.

Draw diagrams in the browser. Mentioned on MoHP.

RTags is a client/server application that indexes C/C++ code and keeps a persistent file-based database of references, declarations, definitions, symbolnames etc. There’s also limited support for ObjC/ObjC++. It allows you to find symbols by name (including nested class and namespace scope). Most importantly we give you proper follow-symbol and find-references support. We also have neat little things like rename-symbol, integration with clang’s “fixits” (http://clang.llvm.org/diagnostics.html). We also integrate with flymake using clang’s vastly superior errors and warnings. Since RTags constantly will reindex “dirty” files you get live updates of compiler errors and warnings. Since we already know how to compile your sources we have a way to quickly bring up the preprocessed output of the current source file in a buffer.

While existing taggers like gnu global, cscope, etags, ctags etc do a decent job for C they often fall a little bit short for C++. With its incredible lexical complexity, parsing C++ is an incredibly hard task and we make no bones about the fact that the only reason we are able to improve on the current tools is because of clang (http://clang.llvm.org/). RTags is named RTags in recognition of Roberto Raggi on whose C++ parser we intended to base this project but he assured us clang was the way to go. The name stuck though.

EditorConfig helps developers define and maintain consistent coding styles between different editors and IDEs. The EditorConfig project consists of a file format for defining coding styles and a collection of text editor plugins that enable editors to read the file format and adhere to defined styles. EditorConfig files are easily readable and they work nicely with version control systems.

System for taking notes in a paper diary.

This software package provides a command line tool for documenting hardware and software designs through timing diagrams.  It reads signal descriptions from a text file with an intuitive syntax, and outputs a timing diagram to an image file.  Notation typical of timing diagrams found in the Electrical Engineering discipline is used, including arrows indicating causal relationships between signal transitions.

diffoscope will try to get to the bottom of what makes files or directories different. It will recursively unpack archives of many kinds and transform various binary formats into more human readable form to compare them. It can compare two tarballs, ISO images, or PDF just as easily.

Free add-ons for Firefox and Chrome to help translating between chinese or japanese and english.