.m4a
1 claimant
0 primary
1 secondary
secondary-only
SWH popularity
Distinct files in the full Software Heritage archive (2026-06-04 export), dated by first appearance, following Desmazières, Di Cosmo, Lorentz (MSR 2025). Case-aggregated. citation.
1.1M
total files
590.4K
first seen 2021–2025 (52.0%)
2021
median year (half its files since)
Case variants in archive: .m4a (1.1M), .M4A (341), .m4A (15) — aggregated above.
Attribution status
This extension is attributed to mp4 — every claim across all sources (including secondary ones) points to a single language.
Authoritative sources: ✗ Linguist · no claim ✗ Pygments · no claim △ Wikidata · secondary ✗ Wikipedia · no claim
Claimants (1)
Languages that list
.m4a among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| mp4 | wikidata | secondary |
Wikidata says… (4)
File formats, image formats, audio codecs and other non-PL
entities that claim
.m4a on Wikidata
(property P1195) or in the Wikipedia infobox.
Source: data/derived/external_extension_index.csv.
Click Use as new PL on any row to open the
Add-PL form pre-filled with that entry's name, Wikipedia/Wikidata
URL, and this extension — one submission creates the PL + claim.
| Format | Class (Wikidata P31) | Suggested label | MIME | Notes | Action |
|---|---|---|---|---|---|
| Advanced Audio Coding Q337594 Audio compression format from MPEG | audio file format; audio compression | binary:audio | audio/aacp; audio/mp4a; audio/mp4a-latm; audio/mpeg4-generic; audio/mpga; audio/x-aac; audio/x-m4a; audio/x-m4b; audio/x-m4p; audio/x-mp4a-latm; audio/aac | — | Use as new PL ↗ |
| Apple Lossless Q621277 audio coding format | file format; audio codec | binary:audio | — | — | Use as new PL ↗ |
| MPEG-4 Part 14 Q336316 digital multimedia format most commonly used to store video and audio | digital container format; multimedia container | binary:video | video/mp4; audio/mp4 | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .m4a in our local mirror yet.