About APE Files
Monkey's Audio
APE (Monkey's Audio) is a lossless audio compression format with high compression ratio.
Family
Audio Files
Extension
.ape
MIME Type
audio/ape, audio/x-ape
Can Use As
HOW APE
CAME TO BE.
Monkey’s Audio — .ape — was released in 2000 by Matthew Ashland as a Windows-native lossless audio codec. Its claim to fame was compression efficiency: at its highest setting ("Insane") it squeezed CD audio into roughly 40-50% of the original WAV size, beating FLAC by 3-5% consistently. The trade-off was speed — APE was slower to encode and decode than FLAC, and the reference implementation was Windows-only.
For a few years in the early 2000s, audiophile music collectors swore by APE. The FLAC vs APE debate was contested: better compression versus faster speed and broader platform support. FLAC eventually won on ecosystem breadth (native Linux and macOS tooling, hardware decoder support) and licensing (APE’s license was more restrictive). APE remains a niche pick for audiophiles who prize every byte and don’t mind Windows-centric tooling.
CURIOSITIES &
TRIVIA.
APE typically compresses 3-5% better than FLAC — a margin audiophiles fought wars over in the early 2000s.
The reference codec is Windows-only; cross-platform playback relies on the open-source libmac.
APE files embed APEv2 tags — a metadata scheme also used by Musepack and WavPack but incompatible with ID3.
At the "Insane" compression level, encoding CD audio takes 30-60× longer than at "Normal" — a genuine quality vs time dial.
Bandcamp, HDTracks, and most Hi-Res streaming services declined APE support in favor of FLAC — sealing the platform war.
STRENGTHS &
LIMITATIONS.
Strengths
- Highest lossless compression ratio among mainstream codecs.
- Lossless — bit-exact with the source.
- Active development since 2000.
- APEv2 metadata tags support rich cataloging.
Limitations
- Windows-centric tooling; macOS/Linux support via libmac is second-class.
- Slow encoding at high levels (30-60× realtime).
- Restrictive license blocked adoption by streaming services.
- Limited hardware decoder support vs FLAC.
- Niche — mostly used by long-time audiophiles.
Typical Sizes & Weights
3-min song (Normal)
18-25 MB
3-min song (Insane)
16-22 MB
Full CD album
220-350 MB
Technical Specifications
- MIME type
- audio/x-ape
- Extension
- .ape
- Compression levels
- Fast, Normal, High, Extra High, Insane
- Metadata
- APEv2 tags
- Max sample rate
- 192 kHz
CONVERT FROM
APE
Common Use Cases
Lossless music archiving
Related Formats
Popular comparisons
APE vs MP3
Differences, file size, and when to choose each format.
APE vs FLAC
Differences, file size, and when to choose each format.
APE vs AAC
Differences, file size, and when to choose each format.
APE vs M4A
Differences, file size, and when to choose each format.
APE vs OGG
Differences, file size, and when to choose each format.
APE vs OPUS
Differences, file size, and when to choose each format.
Popular APE conversions
The most-requested destinations when starting from APE.
Frequently Asked Questions about APE
Frequently Asked Questions
APE (Monkey's Audio) is an audio file format used to store sound recordings — music, voice, podcasts, sound effects. The format defines how the audio samples are compressed (or stored raw), what bitrates are supported, and how metadata such as title, artist, album, and cover art is embedded. It is part of the audio files family.
VLC, foobar2000, and the default media players on Windows and macOS handle APE natively. On mobile, iOS Music and Android media apps vary in their support — popular formats work everywhere; niche ones may need a dedicated app. If playback fails on a device, converting to MP3 or AAC usually solves it.
Upload the APE to KaijuConverter and pick MP3, WAV, FLAC, AAC, OGG, or any other target. Our FFmpeg pipeline decodes the audio and re-encodes to the target format at sensible default bitrates (VBR ~190 kbps for music, 96 kbps for speech). Metadata and cover art travel with the audio where both formats support them.
APE can be lossy or lossless depending on the specific variant. Lossy variants (smaller files) discard some audio detail during compression in ways tuned to be inaudible; lossless variants preserve every sample exactly but produce larger files. For distribution, lossy at high bitrate is standard; for archival, lossless wins.