Airtable’s attachment URLs expire, so they are not suitable for permanently referencing a file from a website, email, or another system. miniExtensions Permanent Public URLs for Attachments gives you a stable public link that retrieves the attachment currently stored in the selected Airtable field, so you can keep using the same link instead of replacing expired Airtable URLs.
What you can do
- Generate stable public links for attachments.
- Create links for individual files in a record.
- Use links in websites, messages, and other workflows.
Stable links to current attachments
The generated link points to an attachment in an Airtable record rather than exposing Airtable’s temporary download URL directly. When someone opens it, the workflow retrieves the current file in the configured attachment position.
This is useful for website images, downloadable documents, or another system that needs a reusable link. Generate individual links when a record contains several files, and test which position each link represents.
The link stays useful while its record, field, and automation remain available. Replacing or reordering attachments can change the file a link retrieves. It is public sharing rather than a separately stored backup, so use it for files intended to be accessible to recipients.
Common uses
- Link to a current product image from an external catalog.
- Share a downloadable document associated with a record.
- Maintain a stable link while replacing a file with its latest version.
- Supply an attachment link to a downstream integration that cannot use a temporary Airtable URL.
How to get started
Choose the table and attachment field, then add the generated formula to Airtable. Open sample links and use them in the sharing workflow you need.
Good to know
Links depend on the source record and current attachment position. They provide public access to files rather than an independent archive.

