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FLAC vsOPUS: Key Differences & Best Format for You

Compare the features of FLAC and OPUS file formats to choose the best option for your needs.

Basic Information

FLACOPUS
CategoryThe general type of file (audio, image, etc.).
audioaudio
CompressionMethod used to reduce file size (Lossy, Lossless, Uncompressed).
LosslessLossy
Relative SizeTypical file size compared to other formats.
MediumSmall
MIME TypesCommon MIME types associated with the format.
  • audio/flac
  • audio/opus
Open FormatIs the format specification publicly available and free to use?
YesYes

Technical Details

FLACOPUS
Bit DepthNumber of bits used to represent color or audio sample amplitude (higher means more detail).
2416
ResolutionImage dimensions (pixels) or audio sample rate/video dimensions.
--
Max QualityHighest achievable quality level or characteristic.
Lossless (matches source)Transparent quality at moderate bitrates
Encoding MethodSpecific algorithm or standard used for encoding the data.
FLAC (Free Lossless Audio Codec)Opus codec
Max File Size LimitAny known maximum file size limitations.
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Features & Usage

FLACOPUS
CompatibilitySoftware, devices, or platforms that support the format.
  • Windows
  • macOS
  • Linux
  • Android
  • Most modern audio players
  • Hi-Fi systems
  • Web Browsers (Chrome, Firefox, Edge)
  • Android
  • iOS
  • VoIP applications (Discord, WhatsApp)
Use CasesCommon applications and scenarios where the format is used.
  • High-fidelity music listening
  • Archiving audio
  • Lossless streaming
  • Real-time communication (VoIP)
  • Streaming audio
  • WebRTC
  • Voice messages
Metadata SupportCan the format store additional information (tags, descriptions, etc.)?
YesYes
Transparency SupportDoes the format support transparent backgrounds (for images)?
--
Editing FriendlyIs the format suitable for easy editing without significant quality loss?
YesNo
Encryption SupportDoes the format support password protection or encryption?
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Pros & Cons

FLACOPUS
ProsAdvantages and strengths of the format.
  • Lossless audio quality
  • Smaller size than uncompressed formats
  • Open-source and royalty-free
  • Excellent quality across a wide range of bitrates
  • Very low latency
  • Ideal for real-time communication and streaming
  • Open-source and royalty-free
ConsDisadvantages and weaknesses of the format.
  • Larger file size than lossy formats
  • Not supported by all older devices/players (e.g., older Apple devices)
  • Newer format, less hardware support than MP3/AAC
  • Not as widely used for music files yet