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CatchFolder setup guide (about 5 minutes)

You need: your license key (shown after checkout; it looks like CF-XXXXX-XXXXX-XXXXX-XXXXX) and the Google account whose Drive should receive the files. A personal Gmail account works; some Google Workspace admins block the "Anyone" sharing this needs.

1. Create a new Apps Script project

Open script.google.com while signed in to the right Google account and click New project. Click Untitled project at the top and rename it CatchFolder.

Screenshot (described): the Apps Script home page with a "New project" button at the top left; the editor opens with a file called Code.gs containing function myFunction() {{}}.

2. Paste the code

Select everything in Code.gs and replace it with the CatchFolder code. Then find the line LICENSE_KEY: 'PASTE-YOUR-LICENSE-KEY-HERE' and paste your key between the quotes.

Copy Code.gs view

3. Add the upload page

Click the + next to Files → HTML and name it exactly Upload (the editor adds .html). Replace its contents with:

Copy Upload.html view

Screenshot (described): the left sidebar now lists two files, Code.gs and Upload.html.

4. Run setup once and allow permissions

Press Ctrl/Cmd + S to save. In the toolbar's function menu choose setup and click Run. Google asks for authorization: Review permissions → choose your account → on "Google hasn't verified this app" click Advanced → Go to CatchFolder (unsafe) → Allow.

Screenshot (described): a dialog titled "Authorization required", then a warning page "Google hasn't verified this app" with a small "Advanced" link at the bottom left.

The Execution log shows License: ACTIVE, plus links to your new CatchFolder uploads folder and the CatchFolder upload log sheet. Running setup also starts your pass (Event Pass: 30 days; Annual: 12 months).

5. Deploy your upload link

Click Deploy → New deployment → gear icon → Web app. Set Execute as: Me and Who has access: Anyone, then click Deploy and copy the Web app URL (it ends in /exec). That's your upload link.

Screenshot (described): the "New deployment" dialog with two dropdowns: "Execute as" set to your email ("Me") and "Who has access" set to "Anyone".

6. Test it

Open the link in a private/incognito window (signed out), upload a small file, and check that it appears in the folder and the log sheet. If notifications are on, you'll get an email.

7. Share it

Put the link in your Google Form's description ("Upload your files here: …"), send it by email, or embed it on your site. Ask for the same name or email on both so you can match uploads to form responses.

Settings you can change (CONFIG block)

Troubleshooting

• Visitors are asked to sign in: "Who has access" isn't set to "Anyone". Redeploy with Anyone.
• "Upload link unavailable": open the script, run setup and read the License line (wrong key, pass expired, or an Event Pass already used by another copy of the script).
• "The owner's Google Drive is full": free up space or add storage.
• "Larger than 50 MB": ask the uploader to compress or split the file.
• Script function not found: doGet: the CatchFolder code didn't replace the default code. Repeat step 2 and save.

Still stuck? Contact us with your license key and what you see. Licenses and expiry: how passes work.

FAQ