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-SpeechWeb AccessibilityAPI
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Unreal Speech
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Unreal Speech
Low-cost text-to-speech API with streaming and per-word timestamps
TTSAPIStreaming
Pricing
| Starting Price | $39/mo (Billed Annually) | $49/mo (Basic list price) |
| Has Free Version | ||
| Plan Summary | Pro starts at $39/mo billed annually (2 months free) or $49/moFree for non-commercial use | Free $0: 250K characters (pricing page) or 1M (home page)Basic $49/mo, 3M charactersPlus $499/mo, 42M charactersPro $1,499/mo, 150M charactersEnterprise $4,999/mo, 625M characters |
| Model | Freemium | Subscription by characters, with free plan |
Other Specifications
| Product Type | Text-to-SpeechWeb Accessibility Tool | Text-to-SpeechAPI |
Voice Quality
| Quality Rating | Medium | Not stated on the page we checked |
| Tonal Description | Browser/HTML5 voices — decent but generally less natural than advanced neural TTS; client-side dependent | Not stated on the page we checked |
Voice Count
| Total Voices | ~158 voices | 48 |
| Categories | Browser-based voices | Not stated on the page we checked |
File Formats
| Supported Formats | N/A | N/A |
| Export Options | No file generation; real-time streaming only | Not stated on the page we checked |
Text to Speech Features
| SSML Support | N/A | |
| API Access | ||
| Multi Language | ||
| Emotional Impulse | No | N/A |
| Voice Cloning | No | No |
Customer Support
| Support Channels | Website | N/A |
| Priority Support | No | N/A |
Integrations
| Platform Integrations | JavaScriptWebsitesApps | N/A |
| API Availability | Developer API available for TTS integration | Yes, four endpoints |
Language Support
| Languages Supported | ~51 languages available | 8 languages (vendor figure) |
| Accent Variety | Available for major global languages | - |
Commercial Rights
| Included | No | |
| Licensing Terms | Free for non-commercial; commercial requires Pro/paid with attribution specifics | Home page: audio can be used commercially; attribution required on the free plan only. The terms page does not explicitly address generated audio. |
Ease of Use
| Usability Rating | High | Developer-oriented (API) |
| User Experience | Simple JS library/embed, easy to add voices to site | Not stated on the page we checked |
Use Cases
| Primary Use Cases | Web TTSAccessibilityReading pages aloud | N/A |
| Applications | Simple voice features for websites and apps | Not stated on the page we checked |
Character/Word Limits
| Monthly Limit | No explicit character limits shown | Free: 250K (pricing page) or 1M (home page) characters |
| Plan Limits | Real-time streaming only (no file generation) | Characters per month by plan; roughly 750 characters per minute of audio per the vendor |
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