Convert APE to MP3
APE files are Monkey's Audio - a lossless codec with slightly better compression than FLAC, but with far less consumer playback support (see Audio codecs explained for the wider codec landscape). Wave decodes APE in your browser and re-encodes to a portable MP3 through libmp3lame at 192 kbps.
What actually changes
Monkey's Audio (developer name Matthew T. Ashland, 2000) is a lossless audio codec that predates FLAC by about a year and achieves modestly better compression at the cost of slower encoding and decoding, plus a closed-source encoder for Windows only. Its files use the .ape extension. The codec found a strong following in the audiophile community and Chinese-language music-sharing archives - particularly for concert recordings and long-form classical music - through the 2000s and 2010s. FLAC has since become the industry lossless standard, but a significant archive of .ape files exists in personal collections and torrent-shared music archives.
Wave decodes APE through ffmpeg-wasm's bundled APE decoder (which is fully cross-platform and open-source, unlike the reference encoder) and re-encodes to MP3 at 192 kbps VBR through libmp3lame. The decoder produces bit-exact PCM samples - the compression is truly lossless - and LAME encodes to a transparent-quality MP3 that's about 30-40% of the APE's already-compressed size.
The typical APE file in the wild is a whole-album single file with an embedded or sidecar cue sheet, ripped from CD by an audiophile using EAC (Exact Audio Copy) or a similar high-precision ripping tool. Album-length APE files are common because the format supports it and it was the convention in the archival community. If your APE source is a single-file album, Wave produces a single-file MP3; split-by-track output needs a desktop tool that reads cue sheets (fre:ac, foobar2000, or shntool) to segment the audio before converting each piece.
The main reason to convert APE to MP3 is compatibility. APE decoders are rare outside desktop-audio-player circles: foobar2000, VLC, MPC-HC, and a few others handle it on Windows; on macOS, iOS, Android, and every consumer hardware player, native support is missing. MP3 plays on all of them. If you've inherited or downloaded an .ape collection and need portability, the conversion is the pragmatic answer.
Three steps.
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Step 1
Drop the .ape file onto the card.
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Step 2
Wave inspects the source and confirms Decode-and-re-encode.
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Step 3
Convert. Save the MP3.
Answers, specifically.
Is the MP3 lossless like the APE?
No - MP3 is a lossy codec by definition. But at 192 kbps VBR through LAME, the output is transparent on any consumer playback chain. If lossless is required, keep the APE (or transcode to FLAC via a desktop tool).
APE with sidecar .cue sheet - does Wave split by track?
Not currently. Wave converts the whole APE to a single MP3. For per-track output, split the source with fre:ac, foobar2000, or shntool first, then convert each piece.
How much smaller is the MP3?
The MP3 is typically 20-30% of the APE's size. A 300 MB APE album becomes an 80-100 MB MP3 album.
APE vs FLAC - does either produce a better MP3?
No. Both are lossless, and both decode to bit-exact PCM samples. LAME produces indistinguishable MP3s from either source.
APE compression levels (fast, high, extra-high, insane)?
All decode through Wave. The compression level only affects encoder speed and file size, not the decoded audio (which is always bit-exact).
What if my APE has embedded tags?
Basic tags (title, artist, album) transfer to ID3v2 in the MP3. APE has its own tag format (APEv2) that maps cleanly to the equivalent ID3v2 fields.
Bit depth 24-bit or higher?
Yes. Monkey's Audio supports up to 32-bit int. Wave decodes at native precision; the MP3 preserves everything reproducible on consumer playback.