We have developed a third-party extension miniextensions integrated with Airtable that can help to resize and compress images. It could be useful to your case.

It's a great app, but it's so expensive per month, like $50. TinyPNG does a great job, except that the images don't return to Airtable within the 30 second runtime for automations. TinyPNG charges per image, $0.009. Any other suggestion besides Miniextensions would be greatly appreciated.

Hi! I'd like to know if someone has found a free solution/formula or script that does the same as the Bulk Image Compression MiniExtension. It sounds like a great app but it's expensive and I need it for just one base. 

Hey Patricia and Aundre! This is Hannes from the miniExtensions Customer Support Team.

We just recently made a change to our free plan that allows you to use bulk extensions for up to one hour of total runtime per day. This should be plenty for a lot of use cases and might work well for you! Just give it a go and see if it fits your use case! Please let me know if you have any further questions, I'd be happy to help!

Thanks so much Hannes! Thanks so much for letting me know this. One hour should be more than fine for me. I will certainly give it a try. 

 ​@AnaG , is it possible to automatically delete the old files which are not compressed?

​@mfoxi 

I would typically recommend using Make to handle this sort of workflow, because Make is an advanced automation tool which you can setup to do whatever you want, such as compress images, resize images, and then delete the original image afterwards.

Make has its own natively built-in Image App lets you resize images or convert images.

The Image App is a pretty basic tool, so if you need more advanced conversions or resizing, I would typically recommend using one of these Make apps: CloudConvert, ConvertAPI, or Convertio. But there are other ones to choose from, too.

If you’ve never used Make before, I’ve assembled a bunch of Make training resources in this thread. For example, here is one of the ways that you could instantly trigger a Make automation from Airtable.

I also give live demonstrations of how to use Make in many of my Airtable podcast appearances. For example, in this video, I show how to work with Airtable arrays in Make. If you’ll be dealing with attachment fields in Airtable, you’ll want to know how to deal with arrays in Make, because attachment fields are array fields.

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