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Free online file converter supporting 400+ formats. Fast, secure, and private.

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HomeFile Converter for Musicians & Audio Engineers

File Converter for Musicians & Audio Engineers

Convert audio files between formats for production, distribution, and streaming. WAV, FLAC, MP3, AAC and more.

Choose Files

or drag and drop files here

Max file size: 2GB

Your files are processed locally in your browser. Nothing is uploaded to any server.

Popular Conversions

WAVFLAC
Lossless compression for archiving
FLACMP3
Create distribution copies
WAVMP3
Share demos and previews
MP4MP3
Extract audio from video recordings
OGGMP3
Convert for universal playback
AACWAV
Get uncompressed audio for editing

Why Convert999?

Lossless conversion preserves audio quality
Batch convert entire albums
No quality loss in WAV/FLAC conversions
Convert between all major audio formats
Files processed locally — masters stay private
No file size limits — handle full albums

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File Tools

Compress, resize, merge

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Other Use Cases

Students

6 popular conversions

Designers

6 popular conversions

Developers

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Businesses

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Content Creators

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Educators

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Photographers

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Marketers

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Legal Professionals

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Video Editors

6 popular conversions