Side by side
Axe.Windows vs PDFUA.io Validator
Both stand on accessibility testing software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Windows
Axe.Windows provides programmatic and command-line accessibility scanning for Windows software, with detailed findings and remediation guidance. Teams should account for its Windows focus, .NET Standard 2.0 prerequisite, and changing undocumented interfaces.
Visit Axe.Windows Free plan APISelf-hostedWeb
PDFUA.io Validator combines standards checking, stored evidence, monitoring and API access. Its credit rules, paid pricing and early-access onboarding are important considerations.
Visit PDFUA.io ValidatorThe facts
| Axe.Windows | PDFUA.io Validator | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Windows | API, Self-hosted, Web |
| Lowest paid plan | Free or on request | Cloud · Starter: $19 a month |
| Plans published | 1 | 5 |
| Maker | Not published | Not published |
| Website | github.com | pdfua.io |
| On accessibility testing software | #93 of 169 | #89 of 169 |
Axe.Windows: what it does well
- Free, MIT-licensed NuGet package
- Synchronous and asynchronous scan APIs
- Command-line support for build pipelines
- Results include repair guidance
- Targets processes or window subtrees
What to know first
- Windows platform only
- No manual review tools
- No mobile testing
- Undocumented interfaces may change
PDFUA.io Validator: what it does well
- Checks WCAG 2.1 AA and PDF/UA-1
- Batch validation supports files up to 200 MB
- Reports preserve SHA-256 audit evidence
- Monitoring schedules recurring domain scans
- API returns JSON or HTML reports
What to know first
- Free plan has 20 credits monthly
- Aborted validations cost one credit
- Paid plans start at $19/mo
- Early access is limited to selected organizations
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