Side by side

Alt Audit vs Altagonist

Both stand on ai alt text generators. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Alt Audit

Free plan APIWeb

Alt Audit combines page-level image checks, generated text, and report exports, with a WordPress plugin and API access on listed plans. Check credit allowances and reset rules against the volume of images you need to process.

Visit Alt Audit

Altagonist

Free plan Open source Self-hostedWebWindows

Choose Altagonist if you manage WordPress images and want bulk alt text generation with language and quality controls. The free plan includes all quality tiers, but its 50 monthly credits cap usage; the listed paid plans are marked Coming Soon.

Visit Altagonist

The facts

	Alt Audit	Altagonist
Free plan	Yes	Yes
Open source	No	Yes
Runs on	API, Web	Self-hosted, Web, Windows
Lowest paid plan	Starter: $5 a month	Personal: €5 a month
Plans published	4	4
Maker	Not published	Not published
Website	altaudit.com	altagonist.com
On ai alt text generators	#6 of 27	#2 of 27

Alt Audit: what it does well

Scans real pages for weak or missing image descriptions.
WordPress plugin can process existing media in bulk.
Exports PDF reports and summaries.
API tokens support integrations.
Free Starter includes 25 credits per month.

What to know first

Each processed image uses one credit.
Unused monthly subscription credits do not roll over.
Free Starter includes community rather than priority email support.

Altagonist: what it does well

Processes hundreds of WordPress images at once
Generates alt text in 70 languages
Offers three quality tiers with different content inputs
Can generate tags automatically on image upload
Supports multiple WordPress sites on every plan

What to know first

Free plan is limited to 50 credits per month
Unused credits do not roll over
Paid plans are marked Coming Soon

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