Best AI Alt Text Generators in 2026
Updated
AI alt text generators can help create image descriptions within publishing workflows, whether you handle images one at a time or in bulk. Compared on image formats and supported languages, the entries also cover API access, bulk processing, CMS plugins, custom generation rules and publishing workflows. Free-plan availability and paid-from pricing add cost considerations. AltTextLab, AutoAlt.ai and Alt Audit are among the tools covered, alongside AltText.ai, Altvisor, Uix Page Builder, AI Alt Text Generator and AI Image Alt Text Generator. Compare where descriptions need to be created or published, and which integrations, scale and content controls suit your process.
AI Alt Text Generators, one module each.A lit port is something its maker publishes; 10 of 10 with a known API signal have a public API.
- 01 Alt Text Pro API yesFREE yesDOCS 7.4$3.60/mo
- 02 AltTextLab API yesFREE yesDOCS 7.4$4/mo
- 03 AutoAlt.ai API yesFREE yesDOCS 7.4$4.49/mo
- 04 Alt Audit API yesFREE yesDOCS 7.3$5/mo
- 05 AltGen API yesFREE yesDOCS 7.3$29/mo
- 06 AltText.io API yesFREE yesDOCS 7.3$19/mo
- 07 AltTextAPI API yesFREE yesDOCS 7.3$9/mo
- 08 ATaaS API yesFREE yesDOCS 7.3$6.58/mo
- 09 AltText.ai API yesDOCS 7.0$4.08/mo
- 10 WriteAlt API yesFREE noDOCS 6.8$0.26/mo
- 11 AI Alt Text Builder FREE yesDOCS 5.9$2.99/mo
- 12 Altagonist FREE yesDOCS 5.9€5/mo
- 13 ALTtext.org FREE yesDOCS 5.9$19.99/mo
- 14 Altvisor FREE yesDOCS 5.9€12/mo
- 15 Caseo FREE yesDOCS 5.9Free
- 16 Uix Page Builder FREE yesDOCS 5.9Free
- 17 AI Alt Text Generator FREE yesDOCS 5.8Free
- 18 AI Image Alt Text Generator FREE yesDOCS 5.8Free
- 19 Alta FREE yesDOCS 5.8$2.42/mo
- 20 Seeing AI FREE yesDOCS 5.8Free
- 21 ALTer FREE yesDOCS 5.7Free
- 22 Alt Text Studio DOCS 5.6$4/mo
- 23 ALTification DOCS 5.6$9.99/mo
- 24 ImageComply DOCS 5.5$25/mo
- 25 Alt Text IQ FREE noDOCS 5.4$29/mo
Compare all 25 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Bulk processing | API access |
|---|---|---|---|---|---|---|---|---|
| 1 | Alt Text Pro | 7.4 | Free plan | $3.60/mo | Yes | 4 /mo | Yes | Yes |
| 2 | AltTextLab | 7.4 | Free plan | $4/mo | Yes | 4 /mo | Yes | Yes |
| 3 | AutoAlt.ai | 7.4 | Free plan | $4.49/mo | Yes | Yes | Yes | |
| 4 | Alt Audit | 7.3 | Free plan | $5/mo | Yes | 5 /mo | Yes | Yes |
| 5 | AltGen | 7.3 | Free plan | $29/mo | Yes | 29 /mo | Yes | Yes |
| 6 | AltText.io | 7.3 | Free plan | $19/mo | Yes | 19 /mo | Yes | Yes |
| 7 | AltTextAPI | 7.3 | Free plan | $9/mo | Yes | 9 /mo | Yes | Yes |
| 8 | ATaaS | 7.3 | Free plan | $6.58/mo | Yes | 9 /mo | Yes | Yes |
| 9 | AltText.ai | 7.0 | $4.08/mo | No | 5 /mo | Yes | Yes | |
| 10 | WriteAlt | 6.8 | No | $0.26/mo | No | 3.17 /mo | Yes | Yes |
| 11 | AI Alt Text Builder | 5.9 | Free plan | $2.99/mo | No | 4.99 /mo | Yes | No |
| 12 | Altagonist | 5.9 | Free plan | €5/mo | Yes | Yes | ||
| 13 | ALTtext.org | 5.9 | Free plan | $19.99/mo | Yes | Yes | Yes | |
| 14 | Altvisor | 5.9 | Free plan | €12/mo | Yes | Yes | Yes | |
| 15 | Caseo | 5.9 | Free plan | Free | No | Yes | ||
| 16 | Uix Page Builder | 5.9 | Free plan | Free | Yes | Yes | Yes | |
| 17 | AI Alt Text Generator | 5.8 | Free plan | Free | Yes | Yes | Yes | |
| 18 | AI Image Alt Text Generator | 5.8 | Free plan | Free | Yes | Yes | Yes | |
| 19 | Alta | 5.8 | Free plan | $2.42/mo | Yes | Yes | ||
| 20 | Seeing AI | 5.8 | Free plan | Free | Yes | |||
| 21 | ALTer | 5.7 | Free plan | Free | Yes | |||
| 22 | Alt Text Studio | 5.6 | $4/mo | No | 4 /mo | Yes | Yes | |
| 23 | ALTification | 5.6 | $9.99/mo | No | Yes | Yes | ||
| 24 | ImageComply | 5.5 | $25/mo | Yes | 25 /mo | Yes | No | |
| 25 | Alt Text IQ | 5.4 | No | $29/mo | No | 29 /mo | Yes | No |
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Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.