Compare ResponsiveVoice.org
Details side-by-side comparison of ResponsiveVoice.org against top competitors.
Detailed Comparison
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ResponsiveVoice.org
The easiest way to add voice to your website
Text-to-Speech
Web Accessibility
API
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Play.ht
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Speechify
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| Starting Price |
$39/mo (Billed Annually)
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$29/month
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| Has Free Version |
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| Plan Summary |
Pro starts at $39/mo billed annually (2 months free) or $49/mo
Free for non-commercial use
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Monthly: ~$29/month
Always free tier available.
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| Model |
Freemium
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Freemium
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| Product Type |
Text-to-Speech
Web Accessibility Tool
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Text-to-Speech
Voice Cloning
AI Voiceover
AI Dubbing
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| Quality Rating |
Medium
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High
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| Tonal Description |
Browser/HTML5 voices — decent but generally less natural than advanced neural TTS; client-side dependent
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natural, human-like
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| Total Voices |
~158 voices
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1,000+ natural-sounding AI voices
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| Categories |
Browser-based voices
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Natural-sounding AI voices
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| Supported Formats |
N/A
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MP3
WAV
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| Export Options |
No file generation; real-time streaming only
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PI supports export in widely used formats like MP3 and WAV.
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| SSML Support |
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| API Access |
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| Multi Language |
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| Emotional Impulse |
No
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| Voice Cloning |
No
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| Support Channels |
Website
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Email
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| Priority Support |
No
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| Platform Integrations |
JavaScript
Websites
Apps
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Google Drive
Dropbox
OneDrive
Chrome Extension
iOS & Android Apps
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| API Availability |
Developer API available for TTS integration
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Speechify offers a developer API for TTS integration, supporting SSML, voice cloning, emotional control, and streaming.
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| Languages Supported |
~51 languages available
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60+ different languages
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| Accent Variety |
Available for major global languages
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Wide range
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| Included |
No
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| Licensing Terms |
Free for non-commercial; commercial requires Pro/paid with attribution specifics
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Studio paid tiers include commercial usage rights for voiceovers and content. Free tier does not include commercial rights
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| Usability Rating |
High
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High
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| User Experience |
Simple JS library/embed, easy to add voices to site
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Always free tier
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| Primary Use Cases |
Web TTS
Accessibility
Reading pages aloud
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PDFs
Web pages
Documents
Books
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| Applications |
Simple voice features for websites and apps
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Text-to-Speech across physical and digital formats
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| Monthly Limit |
No explicit character limits shown
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50,000 chars (free)
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| Plan Limits |
Real-time streaming only (no file generation)
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Unlimited (paid)
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