Prefill them even if they're not included in the form

With miniExtensions form, you have the choice to allow prefilling any field, including hidden ones. You can use this feature to send out forms with some prefilled IDs, for instance, without visually showing them in the form. It works by using the prefill_fieldName= parameter. Our form prefilling function works in the same way it does on Airtable Form. Go here for more details.

💡 Update

We added an auto-submit option to go along with this feature. You can now click on a link to update a record instantly.

Prefill Hidden Airtable Fields in miniExtensions Form 1


Here’s an example for a form with some prefilled hidden fields. After you submit this form, the Notes field (which is hidden) would be auto-filled with the word “test”. You can check the results in the view below.

1. URL

The full URL in the demo above is:

2. Embed on your site

The form can be both shared as a URL or embedded in your website.

Use Cases

This extension can be useful in a lot of scenarios. You can use it for:

  • Assign unique IDs for participants
  • Segment participants in different groups

If you click on the sample view below, you’ll see the table that’s used for the demo above.


Supported features

Third Party Integration

8 Questions
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Site visitor
Site visitor
10 months ago

I’m not sure what I’m doing wrong. The form information is updating the records. By the prefill field is not. Any ideas?

Site visitor
Site visitor
10 months ago

When I submit the form, the prefilled field is not set. Can you help me understand why?

Site visitor
Site visitor
10 months ago

Is there any way to still display the prefilled field even if it is hidden?

Site visitor
Site visitor
10 months ago

The prefill is not filling in on the Airtable base.


Most frequent questions and answers

You can use the subscription on different bases/accounts. It covers universal access to all of our extensions which extensions can be setup for multiple bases and tables. We explain how many Airtable bases you can use on our pricing page.


On paid plans, there’s no limit on the number of records you can process. Unlike Zapier and Integromat, our pricing is per month, not per record. However, there might be limitations by third party integrations.


We have instructional videos for how to use each one of our extensions on the product page. They guide you step-by-step of how to set them up.


We’re not offering discounts at this time. And we don’t require any commitment.


Unfortunately, we only offer plans that provide unlimited access to all of our extensions.


Yes. Submit your request here and we will get back to you as soon as we can.