Online Sound Test vs Tabwalk
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Online Sound Test compared with Tabwalk
| Detail | 
Online Sound Test | 
Tabwalk |
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| What it does | Private browser audio tests and troubleshooting for speakers, headphones and microphones
| Self-hosted accessibility monitoring that shows what is actually broken on your site
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| Not given
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| Pricing model | Free
| Open source
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| Pricing | Not given
| No cost. The self-hosted version is AGPL-3.0 with no account and no feature limits.
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| Key features | - Speaker sound test with bass and distortion check
- Stereo balance and channel separation test
- Left and right channel detection
- Surround sound test for 5.1 and 7.1 channels
- Microphone input level testing
- Tone generator with sine, square and more
- Frequency sweep from low to high
- Bass test for 20–200 Hz frequencies
- Phase test for polarity and center focus
- Spectrum analyzer with private microphone FFT
| - Automated WCAG checks with axe-core
- Keyboard navigation testing that simulates Tab presses
- Consolidated problem reporting with page counts
- Daily or weekly automatic site scanning
- GitHub Action for CI/CD integration
- Notifications via Slack, Discord, email or ntfy
- Single sign-on with Google, Microsoft, Keycloak or OpenID Connect
- Interface available in eight languages
- Human review flagging for issues machines cannot judge
- Self-hosted with Docker deployment
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| What makes it different | - 100% private—audio signals generated locally, nothing uploaded
- Guided diagnosis ranks likely causes with system-specific fixes
- Explainable results showing what browser can and cannot verify
- No medical or calibration claims, focused on practical troubleshooting
- Procedure-based testing with 12 step-by-step guides
| - Shows what machines cannot judge, not just automated check results
- Real keyboard navigation testing that catches focus traps and hidden focus
- Completely free and open source with no feature limits or accounts required
- No modifications to websites and no false compliance claims
- Self-hosted with no data sent to external servers
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 17 | 0 |
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| Citation Flow (Majestic) | 18 | 7 |
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| Referring domains (Majestic) | 21 | 3 |
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4 details filled in for both companies.
More alternatives to Online Sound Test More alternatives to Tabwalk