Choosing an audio format can feel confusing. MP3 is everywhere, WAV is huge, FLAC sounds the same as WAV but smaller, and OGG is... what exactly? This guide cuts through the jargon and gives you a clear answer for every scenario.

The Four Formats at a Glance

FormatTypeTypical Size (3 min song)QualityBest For
MP3Lossy~3–5 MBGoodSharing, playback everywhere
OGG VorbisLossy~2–4 MBGood–GreatWeb, games, open-source projects
WAVUncompressed~30 MBPerfectEditing, professional production
FLACLossless~15–20 MBPerfectArchiving, audiophile listening

MP3 — The Universal Standard

MP3 has been the default audio format for over two decades. It uses lossy compression — it permanently removes audio data that is less perceptible to human hearing — to achieve roughly a 10:1 size reduction.

Use MP3 when:

  • You need maximum compatibility (every device plays MP3)
  • File size matters (sharing via email, messaging apps)
  • You are distributing podcasts or voice recordings

Avoid MP3 when: you plan to edit or re-encode the audio (each generation of lossy compression reduces quality).

OGG Vorbis — The Open Alternative

OGG Vorbis is a free, open-source lossy codec. At the same bitrate, Vorbis typically sounds better than MP3 — especially at lower bitrates where MP3 tends to produce noticeable artifacts.

Use OGG when:

  • You want better quality at smaller file sizes than MP3
  • Your target platform supports it (all major browsers, most media players)
  • You are working on a game or open-source project (patent-free)

Avoid OGG when: you need guaranteed playback on older hardware or Apple devices without third-party apps.

WAV — Uncompressed Perfection

WAV stores raw audio data with zero compression. What goes in is exactly what comes out — no quality loss at all.

Use WAV when:

  • You are editing audio (mixing, mastering, applying effects)
  • You need a working format for audio software (DAWs)
  • File size and storage are not a concern

Avoid WAV when: you need to share files online or store a large music library (a typical album in WAV is ~700 MB).

FLAC — Lossless and Efficient

FLAC gives you the best of both worlds: lossless quality with compression. A FLAC file is typically 50–70% smaller than WAV while being bit-for-bit identical when decoded.

Use FLAC when:

  • You want to archive music without any quality loss
  • You are an audiophile who can hear the difference
  • You need a master copy that can be converted to any other format later

Avoid FLAC when: you need small files for mobile or streaming (use MP3 or OGG instead).

How to Convert Between Audio Formats

With WebConverter.app you can convert between all four formats — plus extract audio from video files — directly in your browser:

No upload, no sign-up, no file size limit. Everything runs locally in your browser.

Convert Audio Now — free, private, runs in your browser.

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