diff --git a/plugin/commands.lua b/plugin/commands.lua
index 2a28eab..306af5a 100644
--- a/plugin/commands.lua
+++ b/plugin/commands.lua
@@ -191,3 +191,8 @@ vim.api.nvim_create_user_command('Tac', function(opts)
     vim.api.nvim_buf_set_lines(buffer, line1, line2, true, lines)
   end
 end, { range = true })
+
+-- :DiagnosticToggle to disable diagnostics when enabled and vise versa.
+vim.api.nvim_create_user_command('DiagnosticToggle', function(_)
+  vim.diagnostic.enable(not vim.diagnostic.is_enabled())
+end, {})