diff --git a/backend/sync_server/src/utils.rs b/backend/sync_server/src/utils.rs
index 6289944f..870f4ae5 100644
--- a/backend/sync_server/src/utils.rs
+++ b/backend/sync_server/src/utils.rs
@@ -1,118 +1,3 @@
-use regex::Regex;
-
-/// Sanitize the document's path to allow all clients to create the same path in
-/// their filesystem. If we didn't do this server-side, client's would need to
-/// deal with mapping invalid names to valid ones and then back.
-pub fn sanitize_path(path: &str) -> String {
-    let options = sanitize_filename::Options {
-        truncate: true,
-        windows: true, // Windows is the lowest common denominator
-        replacement: "",
-    };
-
-    path.split('/')
-        .map(|part| {
-            let proposal = sanitize_filename::sanitize_with_options(part, options.clone());
-            if !part.is_empty() && proposal.is_empty() {
-                "_".to_owned()
-            } else {
-                proposal
-            }
-        })
-        .collect::<Vec<_>>()
-        .join("/")
-}
-
-pub fn deduped_file_paths(path: &str) -> impl Iterator<Item = String> {
-    let mut path_parts = path.split('/').collect::<Vec<_>>();
-    let file_name = path_parts.pop().unwrap().to_owned();
-
-    let mut directory = path_parts.join("/");
-    if !directory.is_empty() {
-        directory.push('/');
-    }
-
-    let name_parts = file_name.rsplitn(2, '.').collect::<Vec<_>>();
-    let mut reverse_parts = name_parts.into_iter().rev();
-    let (stem, extension) = match (reverse_parts.next(), reverse_parts.next()) {
-        (Some(stem), maybe_extension) => (
-            stem.to_owned(),
-            maybe_extension
-                .map(|ext| format!(".{ext}"))
-                .unwrap_or_default(),
-        ),
-        _ => unreachable!("Path must have at least one part"),
-    };
-
-    let regex = Regex::new(r" \((\d+)\)$").unwrap();
-    let start_number = regex
-        .captures(&stem)
-        .and_then(|caps| caps.get(1))
-        .and_then(|m| m.as_str().parse::<u32>().ok())
-        .unwrap_or(0);
-
-    let clean_stem = regex.replace(&stem, "").to_string();
-
-    (start_number..).map(move |dedup_number| {
-        if dedup_number == 0 {
-            format!("{directory}{clean_stem}{extension}")
-        } else {
-            format!("{directory}{clean_stem} ({dedup_number}){extension}")
-        }
-    })
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    #[test]
-    fn test_sanitize_path() {
-        assert_eq!(sanitize_path("/my/path/what?"), "/my/path/what");
-        assert_eq!(sanitize_path("file (1).md"), "file (1).md");
-        assert_eq!(sanitize_path("/my/path/\\\\:?"), "/my/path/_");
-    }
-
-    #[test]
-    fn test_deduped_file_paths() {
-        let mut deduped = deduped_file_paths("file.txt");
-        assert_eq!(deduped.next(), Some("file.txt".to_owned()));
-        assert_eq!(deduped.next(), Some("file (1).txt".to_owned()));
-        assert_eq!(deduped.next(), Some("file (2).txt".to_owned()));
-
-        let mut deduped = deduped_file_paths("file");
-        assert_eq!(deduped.next(), Some("file".to_owned()));
-        assert_eq!(deduped.next(), Some("file (1)".to_owned()));
-        assert_eq!(deduped.next(), Some("file (2)".to_owned()));
-
-        let mut deduped = deduped_file_paths("file (51).md");
-        assert_eq!(deduped.next(), Some("file (51).md".to_owned()));
-        assert_eq!(deduped.next(), Some("file (52).md".to_owned()));
-        assert_eq!(deduped.next(), Some("file (53).md".to_owned()));
-
-        let mut deduped = deduped_file_paths("file (5)");
-        assert_eq!(deduped.next(), Some("file (5)".to_owned()));
-        assert_eq!(deduped.next(), Some("file (6)".to_owned()));
-        assert_eq!(deduped.next(), Some("file (7)".to_owned()));
-
-        let mut deduped = deduped_file_paths("my/path.with.dots/file (5).md");
-        assert_eq!(
-            deduped.next(),
-            Some("my/path.with.dots/file (5).md".to_owned())
-        );
-        assert_eq!(
-            deduped.next(),
-            Some("my/path.with.dots/file (6).md".to_owned())
-        );
-
-        let mut deduped = deduped_file_paths("my/path.with.dots/file (5)");
-        assert_eq!(
-            deduped.next(),
-            Some("my/path.with.dots/file (5)".to_owned())
-        );
-        assert_eq!(
-            deduped.next(),
-            Some("my/path.with.dots/file (6)".to_owned())
-        );
-    }
-}
+pub mod dedup_paths;
+pub mod normalize;
+pub mod sanitize_path;
diff --git a/backend/sync_server/src/utils/dedup_paths.rs b/backend/sync_server/src/utils/dedup_paths.rs
new file mode 100644
index 00000000..c35ad33b
--- /dev/null
+++ b/backend/sync_server/src/utils/dedup_paths.rs
@@ -0,0 +1,88 @@
+use regex::Regex;
+
+pub fn dedup_paths(path: &str) -> impl Iterator<Item = String> {
+    let mut path_parts = path.split('/').collect::<Vec<_>>();
+    let file_name = path_parts.pop().unwrap().to_owned();
+
+    let mut directory = path_parts.join("/");
+    if !directory.is_empty() {
+        directory.push('/');
+    }
+
+    let name_parts = file_name.rsplitn(2, '.').collect::<Vec<_>>();
+    let mut reverse_parts = name_parts.into_iter().rev();
+    let (stem, extension) = match (reverse_parts.next(), reverse_parts.next()) {
+        (Some(stem), maybe_extension) => (
+            stem.to_owned(),
+            maybe_extension
+                .map(|ext| format!(".{ext}"))
+                .unwrap_or_default(),
+        ),
+        _ => unreachable!("Path must have at least one part"),
+    };
+
+    let regex = Regex::new(r" \((\d+)\)$").unwrap();
+    let start_number = regex
+        .captures(&stem)
+        .and_then(|caps| caps.get(1))
+        .and_then(|m| m.as_str().parse::<u32>().ok())
+        .unwrap_or(0);
+
+    let clean_stem = regex.replace(&stem, "").to_string();
+
+    (start_number..).map(move |dedup_number| {
+        if dedup_number == 0 {
+            format!("{directory}{clean_stem}{extension}")
+        } else {
+            format!("{directory}{clean_stem} ({dedup_number}){extension}")
+        }
+    })
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_dedup_paths() {
+        let mut deduped = dedup_paths("file.txt");
+        assert_eq!(deduped.next(), Some("file.txt".to_owned()));
+        assert_eq!(deduped.next(), Some("file (1).txt".to_owned()));
+        assert_eq!(deduped.next(), Some("file (2).txt".to_owned()));
+
+        let mut deduped = dedup_paths("file");
+        assert_eq!(deduped.next(), Some("file".to_owned()));
+        assert_eq!(deduped.next(), Some("file (1)".to_owned()));
+        assert_eq!(deduped.next(), Some("file (2)".to_owned()));
+
+        let mut deduped = dedup_paths("file (51).md");
+        assert_eq!(deduped.next(), Some("file (51).md".to_owned()));
+        assert_eq!(deduped.next(), Some("file (52).md".to_owned()));
+        assert_eq!(deduped.next(), Some("file (53).md".to_owned()));
+
+        let mut deduped = dedup_paths("file (5)");
+        assert_eq!(deduped.next(), Some("file (5)".to_owned()));
+        assert_eq!(deduped.next(), Some("file (6)".to_owned()));
+        assert_eq!(deduped.next(), Some("file (7)".to_owned()));
+
+        let mut deduped = dedup_paths("my/path.with.dots/file (5).md");
+        assert_eq!(
+            deduped.next(),
+            Some("my/path.with.dots/file (5).md".to_owned())
+        );
+        assert_eq!(
+            deduped.next(),
+            Some("my/path.with.dots/file (6).md".to_owned())
+        );
+
+        let mut deduped = dedup_paths("my/path.with.dots/file (5)");
+        assert_eq!(
+            deduped.next(),
+            Some("my/path.with.dots/file (5)".to_owned())
+        );
+        assert_eq!(
+            deduped.next(),
+            Some("my/path.with.dots/file (6)".to_owned())
+        );
+    }
+}
diff --git a/backend/sync_server/src/utils/sanitize_path.rs b/backend/sync_server/src/utils/sanitize_path.rs
new file mode 100644
index 00000000..9703225c
--- /dev/null
+++ b/backend/sync_server/src/utils/sanitize_path.rs
@@ -0,0 +1,34 @@
+/// Sanitize the document's path to allow all clients to create the same path in
+/// their filesystem. If we didn't do this server-side, client's would need to
+/// deal with mapping invalid names to valid ones and then back.
+pub fn sanitize_path(path: &str) -> String {
+    let options = sanitize_filename::Options {
+        truncate: true,
+        windows: true, // Windows is the lowest common denominator
+        replacement: "",
+    };
+
+    path.split('/')
+        .map(|part| {
+            let proposal = sanitize_filename::sanitize_with_options(part, options.clone());
+            if !part.is_empty() && proposal.is_empty() {
+                "_".to_owned()
+            } else {
+                proposal
+            }
+        })
+        .collect::<Vec<_>>()
+        .join("/")
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_sanitize_path() {
+        assert_eq!(sanitize_path("/my/path/what?"), "/my/path/what");
+        assert_eq!(sanitize_path("file (1).md"), "file (1).md");
+        assert_eq!(sanitize_path("/my/path/\\\\:?"), "/my/path/_");
+    }
+}