diff --git a/Cargo.lock b/Cargo.lock
index 6629193df54cd7..544acbc15a1138 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2764,7 +2764,7 @@ dependencies = [
  "insta",
  "once_cell",
  "rome_formatter",
- "rome_rowan",
+ "rome_text_size",
  "rustc-hash",
  "rustpython-ast 0.2.0 (git+/~https://github.com/RustPython/RustPython.git?rev=4f38cb68e4a97aeea9eb19673803a0bd5f655383)",
  "rustpython-common 0.2.0 (git+/~https://github.com/RustPython/RustPython.git?rev=4f38cb68e4a97aeea9eb19673803a0bd5f655383)",
diff --git a/crates/ruff_fmt/Cargo.toml b/crates/ruff_fmt/Cargo.toml
index ff84456f064696..87948c096de188 100644
--- a/crates/ruff_fmt/Cargo.toml
+++ b/crates/ruff_fmt/Cargo.toml
@@ -9,7 +9,7 @@ clap = { version = "4.0.1", features = ["derive"] }
 insta = { version = "1.19.1", features = ["yaml"] }
 once_cell = "1.17.0"
 rome_formatter = { path = "../../../tools/crates/rome_formatter" }
-rome_rowan = { path = "../../../tools/crates/rome_rowan" }
+rome_text_size = { path = "../../../tools/crates/rome_text_size" }
 rustc-hash = "1.1.0"
 rustpython-ast = { git = "/~https://github.com/RustPython/RustPython.git", rev = "4f38cb68e4a97aeea9eb19673803a0bd5f655383" }
 rustpython-common = { git = "/~https://github.com/RustPython/RustPython.git", rev = "4f38cb68e4a97aeea9eb19673803a0bd5f655383" }
diff --git a/crates/ruff_fmt/src/format/alias.rs b/crates/ruff_fmt/src/format/alias.rs
index a5246f748bfe4c..72bc5c61764513 100644
--- a/crates/ruff_fmt/src/format/alias.rs
+++ b/crates/ruff_fmt/src/format/alias.rs
@@ -1,6 +1,6 @@
 use rome_formatter::prelude::*;
 use rome_formatter::write;
-use rome_rowan::TextSize;
+use rome_text_size::TextSize;
 
 use crate::context::ASTFormatContext;
 use crate::cst::Alias;
diff --git a/crates/ruff_fmt/src/format/arg.rs b/crates/ruff_fmt/src/format/arg.rs
index 063e890cc478a4..b4d31687a59d6e 100644
--- a/crates/ruff_fmt/src/format/arg.rs
+++ b/crates/ruff_fmt/src/format/arg.rs
@@ -1,6 +1,6 @@
 use rome_formatter::prelude::*;
 use rome_formatter::write;
-use rome_rowan::TextSize;
+use rome_text_size::TextSize;
 
 use crate::context::ASTFormatContext;
 use crate::cst::Arg;
diff --git a/crates/ruff_fmt/src/format/builders.rs b/crates/ruff_fmt/src/format/builders.rs
index ea9175d706979e..16dd894dc3225a 100644
--- a/crates/ruff_fmt/src/format/builders.rs
+++ b/crates/ruff_fmt/src/format/builders.rs
@@ -1,6 +1,6 @@
 use rome_formatter::prelude::*;
 use rome_formatter::{write, Format};
-use rome_rowan::TextSize;
+use rome_text_size::TextSize;
 
 use crate::context::ASTFormatContext;
 use crate::cst::Stmt;
diff --git a/crates/ruff_fmt/src/format/expr.rs b/crates/ruff_fmt/src/format/expr.rs
index 29f31993d7c5d9..f9d050a86ccbc4 100644
--- a/crates/ruff_fmt/src/format/expr.rs
+++ b/crates/ruff_fmt/src/format/expr.rs
@@ -2,7 +2,7 @@
 
 use rome_formatter::prelude::*;
 use rome_formatter::{format_args, write};
-use rome_rowan::TextSize;
+use rome_text_size::TextSize;
 use rustpython_ast::Constant;
 
 use crate::builders::literal;
diff --git a/crates/ruff_fmt/src/format/stmt.rs b/crates/ruff_fmt/src/format/stmt.rs
index e577cb4854076c..258ca264d19405 100644
--- a/crates/ruff_fmt/src/format/stmt.rs
+++ b/crates/ruff_fmt/src/format/stmt.rs
@@ -2,7 +2,7 @@
 
 use rome_formatter::prelude::*;
 use rome_formatter::{format_args, write};
-use rome_rowan::TextSize;
+use rome_text_size::TextSize;
 
 use crate::builders::literal;
 use crate::context::ASTFormatContext;
diff --git a/crates/ruff_fmt/src/lib.rs b/crates/ruff_fmt/src/lib.rs
index 95680df20ef45c..cb8a548b55061a 100644
--- a/crates/ruff_fmt/src/lib.rs
+++ b/crates/ruff_fmt/src/lib.rs
@@ -35,7 +35,7 @@ pub fn fmt(contents: &str) -> Result<Printed> {
     let python_ast = rustpython_helpers::parse_program_tokens(tokens, "<filename>")?;
 
     // Convert to a CST.
-    let mut python_cst: Vec<Stmt> = python_ast.into_iter().map(Into::into).collect::<Vec<_>>();
+    let mut python_cst: Vec<Stmt> = python_ast.into_iter().map(Into::into).collect();
 
     // Attach trivia.
     attach(&mut python_cst, trivia);
diff --git a/crates/ruff_fmt/src/shared_traits.rs b/crates/ruff_fmt/src/shared_traits.rs
index c91294699af8e4..65fe527fa32f6a 100644
--- a/crates/ruff_fmt/src/shared_traits.rs
+++ b/crates/ruff_fmt/src/shared_traits.rs
@@ -22,25 +22,6 @@ where
     }
 }
 
-/// Implement [`AsFormat`] for [`SyntaxResult`] where `T` implements
-/// [`AsFormat`].
-///
-/// Useful to format mandatory AST fields without having to unwrap the value
-/// first.
-impl<T, C> AsFormat<C> for rome_rowan::SyntaxResult<T>
-where
-    T: AsFormat<C>,
-{
-    type Format<'a> = rome_rowan::SyntaxResult<T::Format<'a>> where Self: 'a;
-
-    fn format(&self) -> Self::Format<'_> {
-        match self {
-            Ok(value) => Ok(value.format()),
-            Err(err) => Err(*err),
-        }
-    }
-}
-
 /// Implement [`AsFormat`] for [`Option`] when `T` implements [`AsFormat`]
 ///
 /// Allows to call format on optional AST fields without having to unwrap the
@@ -65,17 +46,6 @@ pub trait IntoFormat<Context> {
     fn into_format(self) -> Self::Format;
 }
 
-impl<T, Context> IntoFormat<Context> for rome_rowan::SyntaxResult<T>
-where
-    T: IntoFormat<Context>,
-{
-    type Format = rome_rowan::SyntaxResult<T::Format>;
-
-    fn into_format(self) -> Self::Format {
-        self.map(IntoFormat::into_format)
-    }
-}
-
 /// Implement [`IntoFormat`] for [`Option`] when `T` implements [`IntoFormat`]
 ///
 /// Allows to call format on optional AST fields without having to unwrap the