Revolutionize transcription with unmatched accuracy, speed, and language support.
27M visits/mo+0.9%#4 Audio & Voice
WhisperAPI
Transcribe multiple speakers with diarization, convert audio files, and save time with accurate transcriptions.
$0.17Starting price
11KMonthly visits
17Popularity
About WhisperAPI
WhisperAPI is an AI-powered transcription tool that simplifies and streamlines the process of transcribing audio files. Using the OpenAI Whisper API, users can send audio files via an API and receive back a high-quality transcription. All popular audio types, such as WAV and MP3, are supported with the help of FFMPEG. For those needing to transcribe multiple speakers in the same audio file, WhisperAPI offers an optional diarization feature. This allows users to receive a higher accuracy transcription, but at a slower speed than without diarization. With WhisperAPI, users can quickly and accurately transcribe audio files, saving time and effort while ensuring accuracy.
Key features
- Transcribe multiple speakers with diarization for higher accuracy
- Automatically convert audio files to WAV or MP3 via FFMPEG
- Quickly and accurately transcribe audio files for time savings
Use cases
- Transcribing interviews, meetings, or lectures with multiple speakers
- Converting audio files to text for accessibility or search purposes
- Automating transcription tasks in industries such as media, education, or healthcare
Pros
- Affordable pricing with a free trial offering 30 hours of transcription
- Supports over 100 languages and offers translation capabilities
- OpenAI-compatible API for easy integration with existing applications
- Includes speaker diarization for multi-speaker audio files
- Handles various audio file formats and provides high accuracy with the latest Whisper V3 model
Cons
- Performance may slow down when using advanced features like speaker diarization
- Requires technical knowledge for API integration, though documentation is provided
Frequently asked questions about WhisperAPI
What is WhisperAPI and how does it work?
WhisperAPI is a transcription service that uses the OpenAI Whisper model to convert audio files into text. Users send audio files via an API request and receive transcriptions in return, with support for multiple languages and file formats.
Who should use WhisperAPI?
WhisperAPI is designed for developers, businesses, and individuals who need accurate and scalable audio transcription services, including podcast creators, video producers, and meeting note-takers.
Does WhisperAPI support multiple speakers in audio files?
Yes, WhisperAPI offers an optional speaker diarization feature that detects and labels different speakers in the same audio file, improving transcription accuracy for multi-speaker recordings.
What programming languages or tools can integrate with WhisperAPI?
WhisperAPI provides an OpenAI-compatible API that can be integrated with any programming language or application using standard HTTP requests and provided code examples.
What audio formats does WhisperAPI support?
WhisperAPI supports a wide range of audio formats, including WAV, MP3, and others, with the help of FFMPEG for processing.
How do I get started with WhisperAPI?
To get started, users can sign up for an account, obtain an API key, and follow the provided documentation and code examples to send audio files for transcription via the API.
WhisperAPI traffic & engagement
whisperapi.com · third-party estimates from Similarweb
Data as of Sep 2026Full AI website ranking →
Monthly visits · Sep 202611K-45% MoM12-month high 29K (Jun 2026)
Rank among AI websites#4,388▼ 682 vs last monthof 8,652 tools on aitoolnavio™
Top marketUnited States30.6%Top 5 countries bring 80% of visits
Average visit10sTime on site per visit
Pages per visit1.67Average pages viewed
Bounce rate41%Leave after one page · lower is better
Similarweb global rank#2,122,366#1,587,312 in United States
Traffic trend
Last 4 months · grows by one month every month
- Jun 202629K
- Jul 202623K−19.7%
- Aug 202619K−17.7%
- Sep 202611K−45%
Top countries
Share of visits · estimated visits
Other countries: 20.4%
Compared with similar tools
Audio & Voice · Sep 2026
Traffic figures are third-party estimates, good for scale and trends; they can differ from a company's own numbers. Updated monthly.
