diff --git a/changelog.md b/changelog.md
index c93cf4e..28b1780 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 2026-01-12 - 2.7.3 - fix(mod_output)
+wrap long base64 file contents and format generated TypeScript output to avoid extremely long lines
+
+- Introduce MAX_LINE_LENGTH (200) and formatBase64 to split long base64 strings into chunks and join them with string concatenation
+- Emit the files array as nicely indented object entries instead of a single JSON.stringify output to improve readability and avoid extremely long lines
+
 ## 2026-01-12 - 2.7.2 - fix(readme)
 update README to add interactive setup (tsbundle init), expand quick start and usage examples, include pnpm install, document embedding/base64ts output with Deno example, add project structure recommendations, and clarify license/trademark wording
 
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index b886c84..053d5b9 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@git.zone/tsbundle',
-  version: '2.7.2',
+  version: '2.7.3',
   description: 'a multi-bundler tool supporting esbuild, rolldown, and rspack for painless bundling of web projects'
 }
diff --git a/ts/mod_output/index.ts b/ts/mod_output/index.ts
index 3071b0f..8095c12 100644
--- a/ts/mod_output/index.ts
+++ b/ts/mod_output/index.ts
@@ -79,9 +79,32 @@ export class Base64TsOutput {
    * Generate TypeScript file content
    */
   public generateTypeScript(): string {
-    const filesJson = JSON.stringify(this.files, null, 2);
+    const MAX_LINE_LENGTH = 200;
+
+    const formatBase64 = (base64: string): string => {
+      if (base64.length <= MAX_LINE_LENGTH) {
+        return `"${base64}"`;
+      }
+
+      const chunks: string[] = [];
+      for (let i = 0; i < base64.length; i += MAX_LINE_LENGTH) {
+        chunks.push(base64.slice(i, i + MAX_LINE_LENGTH));
+      }
+
+      return `"" +\n      "${chunks.join('" +\n      "')}"`;
+    };
+
+    const filesFormatted = this.files.map(file => {
+      return `  {
+    "path": "${file.path}",
+    "contentBase64": ${formatBase64(file.contentBase64)}
+  }`;
+    }).join(',\n');
+
     return `// Auto-generated by tsbundle - do not edit
-export const files: { path: string; contentBase64: string }[] = ${filesJson};
+export const files: { path: string; contentBase64: string }[] = [
+${filesFormatted}
+];
 `;
   }