Type /** above a declaration and get a complete doc comment. Doxline reads C and C++ (and Java) declarations — templates, parameters, return types, constructors, operators, macros — and writes a Doxygen block with tab stops for every description.
A fast, actively maintained alternative to Doxygen Documentation Generator. Works offline; no AI or API keys needed.
How to use
- Type
/** on the line above a function, class, struct, enum or #define → pick Generate Doxygen Comment.
- Or put the cursor on the declaration and press Ctrl+Alt+D / ⌘⌥D, or right-click → Generate Doc Comment.
- Press Tab to jump between descriptions.
What it understands
- Functions and methods, including multi-line signatures and trailing return types (
auto f() -> T)
template <…> parameters → @tparam (defaults and packs handled)- Pointers, references, arrays, default values, function-pointer parameters, unnamed and variadic parameters
- Constructors/destructors (no
@return), void returns (no @return), operators, qualified names (ns::Class::method)
- Classes, structs, unions, enums (
enum class) and function-like macros (#define CLAMP(x, lo, hi))
- Java: modifiers, annotations, generic methods (
<T extends …> → @tparam), throws clauses → @throws
Doxline Pro
Part of the one-time Branchline Pro license (no subscription):
- Document an entire file at once — right-click → Generate Doc Comments for Entire File adds comments to every undocumented declaration at namespace/class scope.
- Pro features in all Branchline extensions: Branchline, TODO Lens, Snapline, Docline.
Run Doxline: Get Doxline Pro, then Doxline: Enter Pro License Key.
Settings
| Setting |
Default |
Description |
doxline.commandPrefix |
@ |
@param or \param style |
doxline.includeBrief |
true |
Start with @brief |
doxline.placeholder |
Description |
Placeholder text |
Also by the author
Support
Free and maintained by one developer. If it saves you time, you can chip in from $1.
License
Source-available under the Doxline License: free to use, read and learn from; redistribution and derivative publications are not permitted.
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