Best AI Alt Text Generators in 2026
Updated
In short: AutoAlt.ai is ranked #1 of 27 as of 8 October 2026, ahead of Alt Text Pro and Altagonist. The best-ranked option with a free plan is Alt Text Pro. The lowest first paid tier on this page is WriteAlt at $0.26/mo.
Preparing image descriptions may mean handling a few files or fitting generation into a publishing process. Compare supported image formats and languages, then check bulk processing, API access, CMS plugins, and custom generation rules against the workflow you have in mind. Publishing workflows are also a stated comparison point. AutoAlt.ai, Alt Audit, and AltText.ai are options to examine. Free-plan availability and paid-from pricing can help you assess cost, while the listed integrations and controls clarify how each tool may fit into creating and publishing alt text.
27 AI alt text generators ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
27ranked
12free plans on this page
$0.26/molowest paid tier
8 Oct 2026last checked
Input list AI Alt Text Generators 25 channels on this page · 138 of 200 spec lines stated by the makers
Ch Tool Free planPaid fromBulk processingAPI accessCMS pluginsSupported languagesImage formatsCustom generation rules Spec sheet Score
01 AutoAlt.ai Free planYesPaid fromnot statedBulk processingYesAPI accessYesCMS pluginsYesSupported languagesnot statedImage formatsJPG, JPEG, PNG, WebP, SVG, HEIC, GIF, BMP, AVIFCustom generation rulesYes 6/8spec lines stated 7.4
02 Alt Text Pro Free planYesPaid from$4/moBulk processingYesAPI accessYesCMS pluginsYesSupported languagesnot statedImage formatsJPEG, PNG, GIF, WebPCustom generation rulesnot stated 6/8spec lines stated 7.1
03 Altagonist Free planYesPaid fromnot statedBulk processingYesAPI accessnot statedCMS pluginsYesSupported languages70 languagesImage formatsJPEG, PNG, GIF, WebP, SVG, AVIF, TIFF, BMPCustom generation rulesnot stated 5/8spec lines stated 7.1
04 WriteAlt Free planNoPaid from$3.17/moBulk processingYesAPI accessYesCMS pluginsYesSupported languages130 languagesImage formatsJPG, PNG, WebP, GIF, SVG, AVIF, HEIC, BMPCustom generation rulesnot stated 7/8spec lines stated 7.1
05 Alt Audit Free planYesPaid from$5/moBulk processingYesAPI accessYesCMS pluginsYesSupported languagesnot statedImage formatsJPEG, PNG, GIF, WebPCustom generation rulesnot stated 6/8spec lines stated 7.0
06 AltText.ai Free planNoPaid from$5/moBulk processingYesAPI accessYesCMS pluginsYesSupported languages130 languagesImage formatsJPG, PNG, GIF, WebP, BMP, AVIF, HEIC, HEIF, JP2, SVG, TIFFCustom generation rulesYes 8/8spec lines stated 7.0
07 AltTextLab Free planYesPaid from$4/moBulk processingYesAPI accessYesCMS pluginsYesSupported languages130 languagesImage formatsPNG, JPG, WebP, AVIF, SVGCustom generation rulesYes 8/8spec lines stated 7.0
08 AltText.io Free planYesPaid from$19/moBulk processingYesAPI accessYesCMS pluginsYesSupported languagesnot statedImage formatsPNG, JPG, WebPCustom generation rulesnot stated 6/8spec lines stated 6.9
09 Altvisor Free planYesPaid fromnot statedBulk processingYesAPI accessYesCMS pluginsYesSupported languages24 languagesImage formatsJPEG, PNG, WebPCustom generation rulesnot stated 6/8spec lines stated 6.9
10 Uix Page Builder Free planYesPaid fromnot statedBulk processingYesAPI accessYesCMS pluginsYesSupported languagesnot statedImage formatsPNG, JPEG, GIF, WebPCustom generation rulesYes 6/8spec lines stated 6.9
11 AI Alt Text Generator Free planYesPaid fromnot statedBulk processingYesAPI accessYesCMS pluginsYesSupported languagesnot statedImage formatsnot statedCustom generation rulesYes 5/8spec lines stated 6.8
12 AI Image Alt Text Generator Free planYesPaid fromnot statedBulk processingYesAPI accessYesCMS pluginsYesSupported languagesnot statedImage formatsnot statedCustom generation rulesYes 5/8spec lines stated 6.8
13 AltTextAPI Free planYesPaid from$9/moBulk processingYesAPI accessYesCMS pluginsYesSupported languages130 languagesImage formatsnot statedCustom generation rulesnot stated 6/8spec lines stated 6.8
14 Alt Text IQ Free planNoPaid from$29/moBulk processingYesAPI accessNoCMS pluginsYesSupported languages1 languagesImage formatsnot statedCustom generation rulesYes 7/8spec lines stated 6.7
15 Alt Text Studio Free planNoPaid from$4/moBulk processingYesAPI accessYesCMS pluginsYesSupported languages194 languagesImage formatsPNG, JPEG, JPG, WebP, non-animated GIFCustom generation rulesYes 8/8spec lines stated 6.7
16 ImageComply Free planYesPaid from$25/moBulk processingYesAPI accessNoCMS pluginsYesSupported languagesnot statedImage formatsnot statedCustom generation rulesnot stated 5/8spec lines stated 6.7
17 ALTer Free planYesPaid fromnot statedBulk processingnot statedAPI accessnot statedCMS pluginsnot statedSupported languagesnot statedImage formatsnot statedCustom generation rulesnot stated 1/8spec lines stated 6.4
18 ALTtext.org Free planYesPaid fromnot statedBulk processingYesAPI accessYesCMS pluginsnot statedSupported languagesnot statedImage formatsJPEG, PNGCustom generation rulesnot stated 4/8spec lines stated 6.1
19 Alta Free planYesPaid fromnot statedBulk processingYesAPI accessnot statedCMS pluginsNoSupported languagesnot statedImage formatsPNG, JPEG, WebP, GIFCustom generation rulesnot stated 4/8spec lines stated 5.8
20 AltGen Free planYesPaid from$29/moBulk processingYesAPI accessYesCMS pluginsnot statedSupported languages30 languagesImage formatsnot statedCustom generation rulesnot stated 5/8spec lines stated 5.8
21 ALTification Free planNoPaid fromnot statedBulk processingYesAPI accessYesCMS pluginsYesSupported languagesnot statedImage formatsJPG, PNG, WebP, AVIFCustom generation rulesYes 6/8spec lines stated 5.8
22 ATaaS Free planYesPaid from$9/moBulk processingYesAPI accessYesCMS pluginsnot statedSupported languages10 languagesImage formatsJPEG, PNG, WebP, AVIF, GIF, BMP, TIFFCustom generation rulesnot stated 6/8spec lines stated 5.8
23 easyAlt Free planNoPaid from$39/moBulk processingYesAPI accessnot statedCMS pluginsNoSupported languagesnot statedImage formatsPNG, JPG, GIF, WebP, SVGCustom generation rulesnot stated 5/8spec lines stated 5.8
24 AI Alt Text Builder Free planNoPaid from$4.99/moBulk processingYesAPI accessNoCMS pluginsYesSupported languagesnot statedImage formatsnot statedCustom generation rulesYes 6/8spec lines stated 5.7
25 Seeing AI Free planYesPaid fromnot statedBulk processingnot statedAPI accessnot statedCMS pluginsnot statedSupported languagesnot statedImage formatsnot statedCustom generation rulesnot stated 1/8spec lines stated 5.7
Compare all 25 in a table
| # | Tool | Score | Free plan | From | Free plan | Paid from | Bulk processing | API access |
|---|---|---|---|---|---|---|---|---|
| 1 | AutoAlt.ai | 7.4 | Free plan | $4.49/mo | Yes | — | Yes | Yes |
| 2 | Alt Text Pro | 7.1 | Free plan | $3.60/mo | Yes | 4 /mo | Yes | Yes |
| 3 | Altagonist | 7.1 | Free plan | €5/mo | Yes | — | Yes | — |
| 4 | WriteAlt | 7.1 | No | $0.26/mo | No | 3.17 /mo | Yes | Yes |
| 5 | Alt Audit | 7.0 | Free plan | $5/mo | Yes | 5 /mo | Yes | Yes |
| 6 | AltText.ai | 7.0 | No | $4.08/mo | No | 5 /mo | Yes | Yes |
| 7 | AltTextLab | 7.0 | Free plan | $4/mo | Yes | 4 /mo | Yes | Yes |
| 8 | AltText.io | 6.9 | Free plan | $19/mo | Yes | 19 /mo | Yes | Yes |
| 9 | Altvisor | 6.9 | Free plan | €12/mo | Yes | — | Yes | Yes |
| 10 | Uix Page Builder | 6.9 | Free plan | Free | Yes | — | Yes | Yes |
| 11 | AI Alt Text Generator | 6.8 | Free plan | Free | Yes | — | Yes | Yes |
| 12 | AI Image Alt Text Generator | 6.8 | Free plan | Free | Yes | — | Yes | Yes |
| 13 | AltTextAPI | 6.8 | Free plan | $9/mo | Yes | 9 /mo | Yes | Yes |
| 14 | Alt Text IQ | 6.7 | No | $29/mo | No | 29 /mo | Yes | No |
| 15 | Alt Text Studio | 6.7 | No | $4/mo | No | 4 /mo | Yes | Yes |
| 16 | ImageComply | 6.7 | No | $25/mo | Yes | 25 /mo | Yes | No |
| 17 | ALTer | 6.4 | Free plan | Free | Yes | — | — | — |
| 18 | ALTtext.org | 6.1 | No | — | Yes | — | Yes | Yes |
| 19 | Alta | 5.8 | No | — | Yes | — | Yes | — |
| 20 | AltGen | 5.8 | No | — | Yes | 29 /mo | Yes | Yes |
| 21 | ALTification | 5.8 | No | — | No | — | Yes | Yes |
| 22 | ATaaS | 5.8 | No | — | Yes | 9 /mo | Yes | Yes |
| 23 | easyAlt | 5.8 | No | — | No | 39 /mo | Yes | — |
| 24 | AI Alt Text Builder | 5.7 | No | — | No | 4.99 /mo | Yes | No |
| 25 | Seeing AI | 5.7 | No | — | Yes | — | — | — |
Is your tool on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which AI alt text generator is ranked first on Specifiction?
AutoAlt.ai is ranked #1 of 27 with a score of 7.4. Alt Text Pro is second and Altagonist third.
How many of these have a free plan?
12 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, WriteAlt has the lowest first paid tier we found: $0.26/mo.
How is this list ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.