Turn image URLs from Google Sheets and other apps into useful alt text with WriteAlt for Zapier. Choose your language, generate a description, and save it where you need it.
Available on Zapier. You need a WriteAlt API key and credits. Zapier task usage is billed separately.
Select Generate Alt Text and connect your WriteAlt account before choosing the image settings.
Available on Zapier
Multilingual descriptions
Connect with your API key
Your first WriteAlt Zap in four steps
Start with one image and test the full workflow before turning it on.
1. Choose what starts the Zap
Create a Zap and choose a trigger, such as a new Google Sheets row. Your test record should include a direct image URL.
2. Add WriteAlt and connect your account
Search for WriteAlt, choose Generate Alt Text, and connect with your API key from WriteAlt dashboard -> Settings -> API.
3. Select your image and language
Use the field picker to select the image URL from your trigger. Choose language codes such as en or en,es, then select a writing style. Keywords or context are optional.
4. Test, save, and publish
Test the action and review Generated alt text. Add a step to save it to the matching row or record. Publish the Zap and check a completed run in Zap History.
Use a direct image link that WriteAlt can open. A Google Sheet link, CSV link, local file path, or web page is not an image URL.
Let your apps handle the image handoff
A new record brings the image URL. WriteAlt creates the description. Your next step saves it.
1Generate Alt Text action
Up to 10languages per image
5writing styles
Start from the apps you use
Use an image URL from a spreadsheet row, a database record, or another step in your Zap.
Describe each image
Select the image URL from your current record. Each new run uses the image from that record.
Choose your languages
Use one language or request up to 10 supported language codes, such as en,es.
Match your writing style
Choose Professional, Recommended, Shorter, Comprehensive, or Briefest. Add optional image context or keywords.
Save the result
Send Generated alt text to a spreadsheet, database, or CMS step and match it to the original record.
Save results back to your spreadsheet
Add a save step to store alt text and an optional completion status in your Sheet, Table, or destination app. You configure this tracking.
Have 1,000 images? Start with a Google Sheet
Bulk means repeating the workflow for many rows. Each WriteAlt action takes one image URL, not a whole CSV or spreadsheet. In this setup, each row starts its own Zap run.
1
Prepare your rows and trigger
Use columns image_url, alt_text, and Send to Zapier. Choose Google Sheets -> New or Updated Spreadsheet Row, with Send to Zapier as the Trigger Column.
2
Generate for the current image
Add WriteAlt -> Generate Alt Text. Use the field picker to select the row's image_url as Image URL, then choose your languages and style.
3
Save into the same row
Add Google Sheets -> Update Spreadsheet Row. Select the row ID from the trigger and save Generated Alt Text into alt_text. Watching Send to Zapier, not alt_text, keeps this save from restarting generation.
4
Test two rows, then send more
Publish and fill Send to Zapier for two rows without alt text. Check the saved results, then release more gradually. Zapier recommends no more than 100 rows every 20 minutes to reduce throttling.
See WriteAlt in the Zap editor
Find the app, choose Generate Alt Text, and connect your WriteAlt account.
Find WriteAlt in ZapierSearch for WriteAlt when adding an action to your Zap.
Questions about Zapier
Here are the details most teams check before getting started.
What do I need to get started?
A Zapier account, a WriteAlt API key with available credits, and a public image URL. Some Zapier workflows require a paid plan.
Can I process a CSV or an existing spreadsheet?
Yes. Import the CSV into Google Sheets and follow the row-by-row example above. WriteAlt does not accept the whole CSV as one input. Existing rows need to be sent into the Zap; importing alone does not process them.
What if I use Zapier Tables?
Import your CSV, select the imported records, choose Automate records, select your Zap workflows, and click Send to Zap workflows. Importing records alone does not trigger a New Record Zap. Add a destination step to save each result to its matching record.
Can I send a list of image URLs?
Each WriteAlt action takes one image URL. If your source supplies a list, use Looping by Zapier to repeat the action for each URL and keep its record ID with it. A loop is a separate WriteAlt action execution per image, not one bulk request.
Does WriteAlt track completed spreadsheet rows?
No. You set up that tracking in your Sheet, Table, or destination app. Add a final Zap step to save the alt text and, optionally, mark the record complete. Use a filter to skip completed records if needed.
What does Generate Alt Text return?
Generated alt text is the main description. Alt text by language (JSON) contains the returned language versions. The image URL and, when available, image ID and remaining credits are also returned.
How do languages and credits work?
Request up to 10 supported language codes per image. Each image per language uses one WriteAlt credit: 1,000 images in one language use 1,000 credits; two languages use 2,000. Budget separately for Zapier tasks, including generation and the save step where applicable to your plan.
Does the action save alt text to my website?
Not automatically. Results are saved only where you configure the destination step. Saving to a spreadsheet does not update a website; connect your CMS and make sure it uses the saved text as the image alt attribute. The action does not scan sites or optimize image files.
What if a run is unfinished or fails?
Check the completed action in Zap History; a job ID alone does not mean the description is ready. Check image access, your API key, and credits if generation fails. If only saving failed, recover the generated result where possible, since generating again can use more credits.
Add image descriptions to your everyday workflow.
Connect WriteAlt to your apps, test a few images, and save useful alt text alongside your content.
