Side by side
Alta vs ALTer
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.
Free plan Web
Alta combines image description generation with a page checker, plus tools for chart content and context-aware output. The Free plan covers limited daily generation, while Pro removes that generation limit and adds bulk processing.
Visit Alta Free plan Extension
ALTer offers on-demand descriptions for images missing alt text, with a monthly credit allowance. It is a Chrome extension and requires an account to use.
Visit ALTerThe facts
| Alta | ALTer | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Web | Extension |
| Lowest paid plan | Pro: $29 a year | Free or on request |
| Plans published | 2 | 1 |
| Maker | Not published | Not published |
| Website | alttext-ai.com | alteralt.com |
| On ai alt text generators | #11 of 27 | #15 of 27 |
Alta: what it does well
- Provides contextual descriptions and chart data tables
- Flags unreadable labels rather than guessing
- Free plan includes unlimited page scans
- Pro supports bulk upload and CSV export
What to know first
- Uploads are limited to 4 MB per image
- No free trial is offered
- Human review is still needed
ALTer: what it does well
- Leaves images with proper descriptions untouched.
- Generated text is added to the alt attribute.
- Descriptions become readable by screen readers.
- Free plan includes 30 monthly credits.
What to know first
- Chrome extension only.
- Each image description uses one credit.
- Account and sign-in are required.