Transcribe Audio to Text
Upload a recording, a voice memo, a podcast, or a video: Whisper AI transcribes it into timestamped text, directly in your browser. Free, no upload.
- Whisper AI
- About 100 languages
- TXT and SRT
- 100% private
100% private — Everything is processed directly in your browser: your files, voice, and image are never sent to Chatzam's servers.
How to transcribe an audio file?
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Upload your file
MP3, WAV, M4A, OGG, or a video in MP4, MOV, WebM: drag it into the area.
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Choose the language
Specify the spoken language (or automatic detection) and the desired accuracy.
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Get the text
Copy the transcript, or download it as TXT or SRT for subtitles.
AI transcription with no compromise on privacy
OpenAI's Whisper engine
The same speech recognition model used by many paid tools, run in your browser.
Audio and video
All common formats are accepted: a video's audio track is extracted automatically.
Timestamps and subtitles
View the text with timings, or export an SRT file ready for YouTube or editing software.
No file upload
Your recordings (meetings, interviews, voice notes) never leave your device.
Transcribe an audio recording to text with AI
Meeting, interview, lecture, voice message, or podcast: transcribing by hand takes hours. This tool uses Whisper, OpenAI's speech recognition model, to convert speech into written text. Choose “Accurate” for the best quality, or “Fast” for long files on a modest computer.
Free and private transcription: how does it work?
On first use, the AI model (about 40 to 80 MB) is downloaded once, then cached by your browser. Transcription then runs entirely on your device: your file is never uploaded. Processing time depends on your computer's power and the audio's length.
SRT subtitles in one click
The text is split into timestamped segments. Export it as SRT to add subtitles to a YouTube, TikTok, or Instagram video, or to fine-tune them in your editing software.
Frequently Asked Questions
Is audio transcription really free?
Yes. The AI model runs on your device: there's no subscription and no duration limit.
What languages are supported?
Whisper recognizes about 100 languages. The best results are in English, French, Spanish, German, Italian, Portuguese, and Dutch.
How long does a transcription take?
It depends on your computer and the chosen mode. “Fast” mode is significantly quicker; “Accurate” mode is slower but more reliable. Keep the tab open while processing.
Is my file sent to a server?
No. Only the AI model is downloaded from Hugging Face; your audio stays on your device from start to finish.