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OPUS to Text — Free Online OPUS to Text Converter | WuZhiZuo

Convert OPUS audio to text online for free. WuZhiZuo uses AI to deliver high-accuracy OPUS speech-to-text with 134+ languages, speaker diarization, and multiple export formats.

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About OPUS to Text

AI-powered high-accuracy conversion with multilingual support and multiple export formats

AI-Powered Accuracy

134+ language support

Speaker Diarization

Secure & Private

7 Export Formats

Fast {format} Output

Convert in 3 easy steps

From upload to export in under 3 minutes

Upload file

Drag-and-drop your OPUS file. Supports files up to 10 hours (Pro) or 30 minutes (Free).

AI processing

AI auto-detects language, identifies speakers, and processes your file — no manual configuration needed.

Download results

Export to Text or 6 other formats. Shareable links and subtitle files supported.

Supported formats

Comprehensive format coverage for all your needs

Input

OPUS

Output

Text

Text MP3 WAV M4A FLAC OGG AAC MP4 MOV AVI MKV WebM PDF

Frequently Asked Questions

How to convert OPUS to text?

Upload your OPUS file to WuZhiZuo, choose a transcription mode (Cheetah/Dolphin/Whale), and AI will automatically detect the language and generate text. No software installation needed — supports files up to 10 hours long.

How accurate is OPUS to text conversion?

In clear recording environments, OPUS to text accuracy exceeds 95%. For recordings with background noise, enable AI audio repair to boost accuracy by 5-10%. Whale mode delivers the highest transcription precision.

How long does OPUS to text take?

OPUS to text processing typically takes about 1/3 of the audio duration. Export to TXT, DOCX, SRT and 4 other formats after completion.

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