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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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Speechify
✓ verifiedFreemium
Text-to-speech and voice-typing assistant that reads PDFs and web pages aloud and dictates text across apps, for readers and multitaskers.
6.7M visits/mo17K saves
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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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Crikk
✓ verifiedFreemium
Text-to-speech app that turns PDFs, images and documents into natural AI narration for listening, plus voiceover creation.
335K visits/mo2.2K saves
Pricing
No public pricing
Free: $0/month (10 robotic voices, up to 1.5x speed)
Premium: $29/month (1,000+ voices, 60+ languages, up to 5x speed, dictation, podcasts)
No public pricing
No public pricing
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
- ✦1,000+ natural-sounding AI voices in 60+ languages
- ✦Adjustable playback speed up to 5x
- ✦Text highlighting synced to audio
- ✦Scan-and-listen photo-to-speech
- ✦Voice dictation/typing across apps
- ✦AI podcast generation from documents
- ✦Voice AI assistant for Q&A on read content
- ✦Cloud storage integrations (Drive, Dropbox, OneDrive)
- ✦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)
- ✦TTS from PDFs, images and text
- ✦Word/sentence highlighting for read-along
- ✦Playback speed up to 4x
- ✦Support for many languages
- ✦Multiple natural AI voices and styles
- ✦Voiceover creation; iOS and Android apps
Use cases
- →Building empathic voice assistants
- →Measuring emotional expression in speech
- →Running human evaluations of voice models
- →Adding emotional intelligence to apps
- →Listening to long articles, PDFs or emails hands-free
- →Studying by having textbooks or lecture notes read aloud
- →Dictating text faster than typing across apps
- →Turning documents into podcast-style audio
- →Reducing eye strain from extensive reading
- →Creating narration for e-learning or presentations
- →Adding accessible audio to websites
- →Producing quick voiceovers for YouTube videos
- →Generating multi-character dialogue audio clips
- →Listen to documents while multitasking
- →Study and improve retention
- →Create voiceovers for projects
- →Accessibility for reading difficulties
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