How to include external JS files in Google Apps Script for Google Docs

I’m working on a Google Apps Script project that needs to interact with Google Docs. I want to use some external JavaScript libraries to make my code cleaner and more efficient.

The problem is I can’t figure out how to properly import or include external JavaScript files into my Google Apps Script project. I’ve tried a few different approaches but nothing seems to work correctly.

Has anyone successfully loaded external JS files in their Google Apps Script projects? What’s the best way to do this? I need to access functions from these external libraries within my script that manipulates Google Docs.

Any help or examples would be really appreciated. I’m fairly new to Google Apps Script so maybe I’m missing something obvious.

yeah, attaching js files directly is a no-go in apps script. u gotta copy the code of the library and make a new .gs file for it. might be a lil bit of extra work, but it does the job!

Had this exact problem with my first document automation script. Apps Script runs in a sandboxed environment - no XMLHttpRequest or dynamic loading whatsoever. Here’s what actually works: Use the built-in Libraries feature first. In your script editor, hit the ‘+’ next to Libraries and search using script IDs. Tons of popular utilities are already published there. If that doesn’t work, create a separate .gs file and paste the minified library code directly. Watch out for large libraries though - there’s a script size limit. Also check if Apps Script’s built-in services already do what you need before adding external stuff.

Google Apps Script doesn’t support traditional JavaScript imports or require statements like Node.js. It runs on Google’s servers with its own execution model, so you can’t import external files the usual way. Here’s what actually works: Create separate .gs files within your project for different modules. All functions automatically become available across files - no imports needed. For third-party libraries, copy the source code into a new .gs file (watch the file size limits though). Better option: if someone’s published the library you need as a Google Apps Script library, add it through the Libraries section using its script ID. Way cleaner than copying code and handles updates automatically.

This topic was automatically closed 4 days after the last reply. New replies are no longer allowed.