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Convert FLAC to SPX
Convert FLAC to SPX format — 100% browser-based, no upload required.
2 cores · low tier
Drop a file here or click to select
Format will be auto-detected
About these formats
Source
FLAC
Free Lossless Audio CodecLossless audio compression reducing file size by ~50% while preserving perfect audio quality. Ideal for music archival.
Best for
Music archivalAudiophile collectionsLossless backupsHi-Fi audio
Advantages
- + Perfect quality
- + ~50% smaller than WAV
- + Open source
- + Metadata support
Limitations
- − Larger than MP3
- − Limited portable device support
Target
SPX
Speex AudioOpen-source speech codec designed for voice over IP. Provides good speech compression at very low bitrates.
Best for
VoIPVoice chatSpeech compressionPodcasts
Advantages
- + Optimized for speech
- + Open source
- + Very low bitrate
Limitations
- − Superseded by Opus
- − Speech only
- − Declining usage