tiny-debugger.nvim
A zero-config debugging experience for Neovim 0.12+. One plugin install, full IDE-class debugging: inline variable values, hover inspection, persistent breakpoints, watch expressions, and modal keybindings that just work.
Install
vim.pack.add("swaits/tiny-debugger.nvim")
That's it. No other config needed. See :help tiny-debugger for customization.
Usage
Everything lives under <leader>d (with which-key support if installed):
| Key | Action | Available |
|---|---|---|
<leader>dd |
Toggle debug mode | Always |
<leader>dx |
Toggle breakpoint | Always |
<leader>dX |
Conditional breakpoint | Always |
<leader>dD |
Clear all breakpoints | Always |
During debug mode, single-key controls:
| Key | Action | Key | Action |
|---|---|---|---|
c |
Continue | W |
Watch expression |
s |
Step over | K |
Hover / inspect |
d |
Step into | E |
Eval in REPL |
r |
Step out | q |
Terminate session |
C |
Run to cursor | R |
Restart session |
? |
Help popup |
All navigation keys preserved. Modal keybindings vanish when you exit debug mode.
Supported Languages
Adapter binaries must be installed (via mason, package manager, etc).
| Language | Adapter | Language | Adapter |
|---|---|---|---|
| Python | debugpy | C# | netcoredbg |
| JavaScript / TS | js-debug | Java | java-debug-adapter |
| Go | delve | Kotlin | kotlin-debug |
| C / C++ | codelldb | PHP | php-debug |
| Rust | codelldb | Ruby | rdbg |
| Swift | codelldb | Lua (Neovim) | osv |
License
MIT