How accurate is the transcription?

OpenAI Whisper achieves under 5% word error rate on clear English audio. Accuracy decreases with heavy background noise or overlapping speakers.

What file formats are supported?

MP3, MP4, WAV, M4A, WEBM — audio and video files alike. The audio track is extracted from video files automatically.

Is there a file size limit?

Yes — 25 MB per file. For longer recordings, split the file using a free tool like Audacity before uploading.

Does it identify multiple speakers?

Not in the current version. The transcript is provided as a single text stream without speaker labels. Diarisation may be added in a future update.

Audio Tools

Speech to Text

Transcribe audio and video files into accurate text with timestamps

Powered by OpenAI Whisper — one of the most accurate transcription models available — our Speech to Text tool converts audio and video files into clean, readable transcripts with optional language detection and timestamped segments.

50+ languagesTimestamped segmentsUp to 25 MBAuto language detection

Speech to Text

Transcribe audio and video files into accurate text with timestamps

Upload Audio

MP3, MP4, WAV, M4A, WEBM — max 25 MB

Drop audio here or click to browse

MP3, MP4, WAV, M4A, WEBM up to 25 MB

Language

Daily usage0 / 5 used

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Transcription will appear here

Upload an audio file and click Transcribe

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Why use Speech to Text?

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Whisper-powered accuracy

OpenAI Whisper achieves near-human transcription accuracy across accents, background noise, and varied recording quality.

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50+ languages

Auto-detect the spoken language or specify English, Hindi, Spanish, French, German, Chinese, Japanese, Arabic, and many more.

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Timestamped segments

Get the full transcript broken into time-coded segments — ideal for creating subtitles, searching recordings, or building highlights.

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Multiple file formats

Upload MP3, MP4, WAV, M4A, or WEBM files up to 25 MB. Both audio-only and video files work equally well.

How it works

Upload your file

Drag and drop or browse for an audio/video file up to 25 MB. Supported formats: MP3, MP4, WAV, M4A, WEBM.

Select language

Choose auto-detect or specify the spoken language to improve transcription speed and accuracy.

Get text and timestamps

Receive a full transcript plus timestamped segments. Copy the transcript or individual sections for your workflow.

Frequently asked questions

Ready to get started?

Create your free account and start using Speech to Text today.

No credit card required • 3 free uses per day