iSpeech
Text to Speech and Speech Recognition API for developers
About iSpeech
iSpeech provides cloud-based Text-to-Speech (TTS) and Automated Speech Recognition (ASR) APIs that enable developers to speech-enable any internet-connected application. With support for 27 languages, multiple audio formats, SSML/MathML markup, and SDKs for JavaScript, Python, PHP, .NET, Android, and iOS, iSpeech makes it easy to add voice capabilities to web and mobile apps.
Pros & Cons
Pros
- Simple and minimal interface that's easy to use without technical expertise
- Supports 27 languages for TTS and ASR with multiple accent options
- Extensive SDK support across major programming languages and platforms
- Free Basic plan available with no sign-up required for testing
- SSML and MathML markup support for fine-tuned speech control
Cons
- Voice quality doesn't compete with modern AI-powered TTS solutions
- Pricing transparency is limited — enterprise plans require custom quotes
- Reports of reliability issues and outdated technology compared to newer alternatives
- Customer support has received negative feedback from users
Key Features
Text-to-Speech API
Convert text to natural-sounding speech audio in multiple voices, formats, bitrates, and playback speeds
Speech Recognition (ASR)
Transcribe spoken language into text with support for various accents and dialects
27 Language Support
TTS and ASR support for 27 languages plus 15 languages for free-form dictation
SSML & MathML Support
Fine-tune speech output with Speech Synthesis Markup Language and Math Markup Language
Word Timing & Viseme Data
Get precise word position timestamps and mouth position data for lip-sync animations
Multi-Platform SDKs
Native SDKs for JavaScript, Python, PHP, .NET, Ruby, Perl, Android, and iOS
Multiple Output Formats
Support for URL Encoded, XML, and JSON API formats with configurable audio output
Free Web & Mobile Apps
Ready-to-use text-to-speech applications for web browsers and mobile devices
Pricing
- Basic TTS access
- Limited usage
- Web app access
- Up to 30 minute recordings
- ~4,167 words per recording
- Annual option at $19.95/year
- Up to 12 hour recordings
- ~100,000 words per recording
- Annual option at $29.95/year
- Priority support
Best For
App Accessibility
Add text-to-speech to websites and apps to make content accessible to visually impaired users
Developer Integration
Quickly integrate TTS and ASR into applications via REST API and native SDKs
Educational Content
Convert written educational materials into audio format for read-along experiences
Quick Audio Generation
Generate one-off audio clips from text without complex setup or high costs
Similar Tools
ElevenLabs
AI voice generator and voice agents platform
Murf AI
AI voice generator with 200+ realistic text-to-speech voices
Otter.ai
AI-powered meeting notetaker with real-time transcription and automated summaries
TTSOpenAI
Advanced AI voice engine for natural text-to-speech
LOVO AI
AI voice generator and video editor with 500+ voices in 100+ languages
Groq
Ultra-fast AI inference powered by custom LPU silicon