diff --git a/external-crates/move/Cargo.lock b/external-crates/move/Cargo.lock
index 8fc7ec9946862..eae2d26a2708a 100644
--- a/external-crates/move/Cargo.lock
+++ b/external-crates/move/Cargo.lock
@@ -1585,6 +1585,7 @@ dependencies = [
  "move-ir-types",
  "move-symbol-pool",
  "serde",
+ "serde_json",
 ]
 
 [[package]]
diff --git a/external-crates/move/crates/move-bytecode-source-map/Cargo.toml b/external-crates/move/crates/move-bytecode-source-map/Cargo.toml
index c42d4a8e01f8c..4233763f94b0d 100644
--- a/external-crates/move/crates/move-bytecode-source-map/Cargo.toml
+++ b/external-crates/move/crates/move-bytecode-source-map/Cargo.toml
@@ -17,6 +17,7 @@ move-command-line-common.workspace = true
 bcs.workspace = true
 
 serde.workspace = true
+serde_json.workspace = true
 
 [features]
 default = []
diff --git a/external-crates/move/crates/move-bytecode-source-map/src/utils.rs b/external-crates/move/crates/move-bytecode-source-map/src/utils.rs
index f73d1203451c3..191f57f2b6203 100644
--- a/external-crates/move/crates/move-bytecode-source-map/src/utils.rs
+++ b/external-crates/move/crates/move-bytecode-source-map/src/utils.rs
@@ -5,12 +5,19 @@
 use crate::source_map::SourceMap;
 use anyhow::{format_err, Result};
 use move_ir_types::location::Loc;
-use std::{fs::File, io::Read, path::Path};
+use std::{
+    fs::File,
+    io::{Read, Write},
+    path::Path,
+};
 
 pub type Error = (Loc, String);
 pub type Errors = Vec<Error>;
 
 pub fn source_map_from_file(file_path: &Path) -> Result<SourceMap> {
+    if file_path.extension().is_some_and(|ext| ext == "json") {
+        return deserialize_from_json(file_path);
+    }
     let mut bytes = Vec::new();
     File::open(file_path)
         .ok()
@@ -19,3 +26,31 @@ pub fn source_map_from_file(file_path: &Path) -> Result<SourceMap> {
     bcs::from_bytes::<SourceMap>(&bytes)
         .map_err(|_| format_err!("Error deserializing into source map"))
 }
+
+pub fn serialize_to_json(map: &SourceMap) -> Result<Vec<u8>> {
+    serde_json::to_vec(map).map_err(|e| format_err!("Error serializing to json: {}", e))
+}
+
+pub fn serialize_to_json_file(map: &SourceMap, file_path: &Path) -> Result<()> {
+    let json = serde_json::to_string_pretty(map)
+        .map_err(|e| format_err!("Error serializing to json: {}", e))?;
+    let mut f =
+        std::fs::File::create(file_path).map_err(|e| format_err!("Error creating file: {}", e))?;
+    f.write_all(json.as_bytes())
+        .map_err(|e| format_err!("Error writing to file: {}", e))?;
+    Ok(())
+}
+
+pub fn deserialize_from_json(file_path: &Path) -> Result<SourceMap> {
+    let mut file = File::open(file_path).map_err(|e| format_err!("Error opening file: {}", e))?;
+    let mut json = String::new();
+    file.read_to_string(&mut json)
+        .map_err(|e| format_err!("Error reading file: {}", e))?;
+    serde_json::from_str(&json).map_err(|e| format_err!("Error deserializing from json: {}", e))
+}
+
+pub fn convert_to_json(file_path: &Path) -> Result<()> {
+    let map = source_map_from_file(file_path)?;
+    let json_file_path = file_path.with_extension("json");
+    serialize_to_json_file(&map, &json_file_path)
+}
diff --git a/external-crates/move/crates/move-package/src/compilation/compiled_package.rs b/external-crates/move/crates/move-package/src/compilation/compiled_package.rs
index 998b18ea0e346..ff03ab46dbf1a 100644
--- a/external-crates/move/crates/move-package/src/compilation/compiled_package.rs
+++ b/external-crates/move/crates/move-package/src/compilation/compiled_package.rs
@@ -15,7 +15,7 @@ use anyhow::{ensure, Result};
 use colored::Colorize;
 use itertools::{Either, Itertools};
 use move_binary_format::file_format::CompiledModule;
-use move_bytecode_source_map::utils::source_map_from_file;
+use move_bytecode_source_map::utils::{serialize_to_json, source_map_from_file};
 use move_bytecode_utils::Modules;
 use move_command_line_common::files::{
     extension_equals, find_filenames, try_exists, MOVE_COMPILED_EXTENSION, MOVE_EXTENSION,
@@ -321,6 +321,13 @@ impl OnDiskCompiledPackage {
                 .with_extension(SOURCE_MAP_EXTENSION),
             compiled_unit.unit.serialize_source_map().as_slice(),
         )?;
+        self.save_under(
+            CompiledPackageLayout::SourceMaps
+                .path()
+                .join(&file_path)
+                .with_extension("json"),
+            &serialize_to_json(&compiled_unit.unit.source_map)?,
+        )?;
         self.save_under(
             CompiledPackageLayout::Sources
                 .path()