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Hume AI
✓ verifiedPaid
Voice AI research lab offering emotionally intelligent speech models and APIs for developers building empathic voice applications.
247K visits/mo
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ttsMP3.com
✓ verifiedFree
Free browser-based text-to-MP3 converter using Amazon Polly voices across 28+ languages with SSML controls.
599K visits/mo
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Voice Out
✓ verifiedFreemium
Free Chrome extension that reads aloud webpages, Google Docs, PDFs, and ebooks in 60+ languages with premium voice upgrades.
75K visits/mo
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SpeechGen
✓ verifiedFreemium
Browser TTS generator with thousands of voices in 150 languages for marketers, e-learning teams and IVR builders needing fast voiceovers.
585K visits/mo17K saves
Pricing
No public pricing
No public pricing
No public pricing
Free: 1,000 characters (no account required)
Core features
- ✦Empathic, emotionally intelligent voice models
- ✦Human-feedback and evaluation APIs
- ✦Open-source models and datasets
- ✦Coverage of 50+ languages and dozens of emotions
- ✦Expression measurement and speech tooling
- ✦Text-to-MP3 conversion powered by AWS Polly
- ✦28+ languages and multiple regional accents/voices
- ✦SSML tags for pauses, emphasis, speed, and pitch
- ✦Multi-speaker conversation formatting
- ✦Daily free character limit (~3,000 characters)
- ✦Text-to-speech reading across webpages, Docs, PDFs, and email
- ✦Support for 60+ languages and 100+ voices
- ✦Adjustable reading speed, pitch, and volume
- ✦Background listening while browsing
- ✦Highlighting of text as it's read aloud
- ✦Minimal permissions with no data tracking claimed
- ✦Over 5,000 AI voices across 150 languages
- ✦Adjustable speed, pitch, volume and pause timing
- ✦SSML controls for intonation and pronunciation
- ✦Background music mixing
- ✦Bulk conversion of long documents up to 1M characters
- ✦Upload of DOCX, PDF or SRT source files
- ✦Commercial usage license included
- ✦Multiple export formats and bitrates
Use cases
- →Building empathic voice assistants
- →Measuring emotional expression in speech
- →Running human evaluations of voice models
- →Adding emotional intelligence to apps
- →Creating narration for e-learning or presentations
- →Adding accessible audio to websites
- →Producing quick voiceovers for YouTube videos
- →Generating multi-character dialogue audio clips
- →Language learners listening while reading text
- →People with reading disabilities or visual impairment
- →Multitasking users listening to articles or documents hands-free
- →Editors and writers catching errors by hearing their drafts read aloud
- →Producing marketing or product-explainer voiceovers on tight deadlines
- →Creating multilingual e-learning narration
- →Building bilingual phone/IVR prompts for small businesses
- →Generating narration for audio guides and tours
- →Localizing video content into other languages
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