.mp4
1 claimant
1 primary
0 secondary
unambiguous primary
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.
7.6M
total files
4.8M
first seen 2021–2025 (63.5%)
2022
median year (half its files since)
Case variants in archive: .mp4 (7.6M), .MP4 (43.9K), .Mp4 (151), .mP4 (14) — aggregated above.
Attribution status
This extension is attributed to mp4 as primary by 1 authoritative claim.
Authoritative sources: ✗ Linguist · no claim ✗ Pygments · no claim ✓ Wikidata · Q336316 ✗ Wikipedia · no claim
Claimants (1)
Languages that list
.mp4 among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| mp4 | wikidata | primary |
Wikidata says… (8)
File formats, image formats, audio codecs and other non-PL
entities that claim
.mp4 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 ↗ |
| Advanced Video Coding Q212633 standard for video compression | video compression format; ISO standard | binary:archive | video/H264 | — | Use as new PL ↗ |
| MPEG-4 Q219763 video encoding standard | file format | — | video/mp4 | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .mp4 in our local mirror yet.