Audio tool
Upload an audio file and get a text transcript.
Click to upload or drag an audio file
MP3, WAV, M4A · Max 25MB
What can you do?
- Speech to text — Upload a recording and get a clean text transcript. Works for meetings, interviews, voice notes, and podcasts.
- Text to speech — Convert any text into spoken audio in multiple languages. Download as MP3.
Frequently asked questions
Is this tool free?
Yes. It runs on Cloudflare Workers AI with a free daily quota. Normal use won't hit limits.
Are my files stored?
No. Audio is processed in memory and discarded immediately after the transcript or speech is generated. Nothing is stored.
What audio formats work for transcription?
MP3, WAV, M4A, and most common audio formats. Maximum file size is 25MB.
What languages does text-to-speech support?
MeloTTS supports English, Chinese, French, German, Spanish, Japanese, and Korean. Output is MP3 format.
How accurate is the transcription?
Whisper large-v3-turbo is one of the most accurate speech recognition models available. Accuracy depends on audio quality and background noise. For best results, use clear recordings.
Note: AI transcription and synthesis are provided as-is. Review output before using it in production or official documents.