Why doesn't Airtable allow attachment size limit in forms?

​@anmolgupta 

I’m not sure why Airtable doesn’t offer that feature, but it’s a fantastic idea and you should definitely submit it as a feature request on the product ideas form here.

In the meantime, until Airtable offers this feature, your #1 best bet for this is to use Fillout’s advanced forms for Airtable.

Fillout is 100% free, and it offers hundreds of features that Airtable’s native forms don’t offer, including the ability to:

• limit attachment upload sizes on forms
• update Airtable records using a form
• create new linked records on a form
• create custom PDF files from a form submission
• display Airtable lookup fields on forms
• perform math or other live calculations on your forms
• create multi-page forms with conditional paths
• pre-fetch dynamic data from an Airtable record
• accept payments on forms
• customize the style and branding of your form
• customize a theme for your form
• add a login page to your form
• collect signatures on a form
• connect a single form to dozens of external apps simultaneously
• add CAPTCHAs to your form
• and much more.

I show how to use a few of the advanced features of Fillout on these 2 Airtable podcast episodes:

• Using Fillout to update an existing Airtable record & create an eSignature approval process with PDF file creation.
• Using Fillout to create an order entry form with line items.

Hope this helps!

If you’d like to hire the best Airtable consultant to help you with anything Airtable-related, please feel free to contact me through my website: Airtable consultant — ScottWorld

This is a real and rather unusual gap in Airtable forms in my opinion.  While Fillout is always an option another good option is to route your form through Zapier or Make instead which will allow you to intercept the submission.  You can check the file size early in your flow and reject or flag it before it settles into your base.  It is more setup but everything is kept within tools you may already be using.

If you already have Airtable automations, you can have a step that checks attachment size when a record is created or sends a notification when something oversized comes through.  It isn’t quite a perfect fix but it catches the problems quickly.

Either way, worth submitting this as a feature request because this is a very basic need that somehow has been overlooked.