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Bulk PCM to FLAC Converter Online — Free HD Quality

Drag and drop your multiple PCM files into this 100% free online PCM to FLAC converter (.pcm to .flac), and click the Convert button to bulk convert them to FLAC format in HD quality. Use the quality slider to fine-tune your FLAC output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original PCM files are removed from our servers right after. Also see:Convert multiple M4B to MP3.

Drop your PCM files here to convert to FLAC, or click to browse

Converts .pcm to FLAC (.flac) in HD quality — bulk, free, no signup

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PCM vs FLAC — File Format Comparison

See how PCM and FLAC compare across file extension, MIME type, compression, and feature support. Related:Get AAC from M4P.

Feature PCM FLAC
File Extension .pcm .flac
MIME Type audio/x-raw audio/flac
Compression Type Lossless Lossless
Metadata Support No Yes

What Is PCM Format?

Raw PCM Audio — headerless binary audio data containing uncompressed pulse-code modulation samples with no metadata; typically 44100 Hz stereo 16-bit little-endian, used in low-level audio pipelines and embedded systems. See also:Mass MIDI to M4A conversion.

  • Compression: Lossless
  • Tags & Metadata: Not supported

What Is FLAC Format?

Free Lossless Audio Codec — open-source lossless compression that reduces file size by 40–60% versus WAV with zero quality loss, perfect for audiophile archiving.

  • Compression: Lossless
  • Tags & Metadata: Supported