diff --git a/book/src/generated/typable-cmd.md b/book/src/generated/typable-cmd.md
index c2c7e2dea14c..f63dd7afbbe9 100644
--- a/book/src/generated/typable-cmd.md
+++ b/book/src/generated/typable-cmd.md
@@ -19,6 +19,7 @@
 | `:write-buffer-close!`, `:wbc!` | Force write changes to disk creating necessary subdirectories and closes the buffer. Accepts an optional path (:write-buffer-close! some/path.txt) |
 | `:new`, `:n` | Create a new scratch buffer. |
 | `:format`, `:fmt` | Format the file using an external formatter or language server. |
+| `:trim-trailing-whitespace` | Trim trailing whitespace in document. |
 | `:indent-style` | Set the indentation style for editing. ('t' for tabs or 1-16 for number of spaces.) |
 | `:line-ending` | Set the document's default line ending. Options: crlf, lf. |
 | `:earlier`, `:ear` | Jump back to an earlier point in edit history. Accepts a number of steps or a time span. |
diff --git a/helix-term/src/commands/typed.rs b/helix-term/src/commands/typed.rs
index 85cf6b1d1290..ba54990c617e 100644
--- a/helix-term/src/commands/typed.rs
+++ b/helix-term/src/commands/typed.rs
@@ -422,6 +422,19 @@ fn write_impl(
     Ok(())
 }
 
+fn trim_trailing_whitespace_cmd(
+    cx: &mut compositor::Context,
+    _args: Args,
+    event: PromptEvent,
+) -> anyhow::Result<()> {
+    if event != PromptEvent::Validate {
+        return Ok(());
+    }
+    let (view, doc) = current!(cx.editor);
+    trim_trailing_whitespace(doc, view.id);
+    Ok(())
+}
+
 /// Trim all whitespace preceding line-endings in a document.
 fn trim_trailing_whitespace(doc: &mut Document, view_id: ViewId) {
     let text = doc.text();
@@ -3104,6 +3117,17 @@ pub const TYPABLE_COMMAND_LIST: &[TypableCommand] = &[
             ..Signature::DEFAULT
         },
     },
+    TypableCommand {
+        name: "trim-trailing-whitespace",
+        aliases: &[],
+        doc: "Trim trailing whitespace in document.",
+        fun: trim_trailing_whitespace_cmd,
+        completer: CommandCompleter::none(),
+        signature: Signature {
+            positionals: (0, Some(0)),
+            ..Signature::DEFAULT
+        },
+    },
     TypableCommand {
         name: "indent-style",
         aliases: &[],