Home · Extensions · .i3

`.i3`

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.

21.1K

total files

3.5K

first seen 2021–2025 (16.7%)

2012

median year (half its files since)

Case variants in archive: .i3 (20.9K), .I3 (159) — aggregated above.

Attribution status

This extension is attributed to Modula-3 as primary by 1 authoritative claim.

Authoritative sources: ✓ Linguist ✗ Pygments · no claim ✗ Wikidata · no claim ✗ Wikipedia · no claim

Disagree or have a correction? Open a labelling issue.

Claimants (1)

Languages that list .i3 among their extensions. Strength reflects whether the upstream source treated it as their primary extension.

Language	Source	Strength
Modula-3	linguist	primary

SWH-mined examples (2)

Real archived programs with this extension, byte-verified against the SWH archive, grouped by predicted language and by how the prediction was made. Useful for deciding what this extension actually is when the attribution is uncertain.

Modula-3 (2) — 2 via unique-primary

TextVBTClass.i3 · 809 B · seen 2× in SWH

predicted: Modula-3 via unique-primary

swh:1:cnt:cfce8a258d9943c87af3e0bb2bcab3952736b86b;origin=https://github.com/modula3/cm3;anchor=swh:1:rev:f0e4a5be0778e2e80dd8e2d852ada0bac641abdd;path=/m3-ui/ui/src/split/TextVBTClass.i3

Open in SWH · Raw bytes

Example.i3 · 267 B · seen 2× in SWH

predicted: Modula-3 via unique-primary

swh:1:cnt:607ba5fc5935069ffcab786da81e82a996fdddc9;origin=https://github.com/OS2World/DEV-SAMPLES-Modula;anchor=swh:1:rev:9f5ce4615c046514bcd2013dbda21e20f9c3a475;path=/test/m3/test/anetobj/server/src/Example.i3

Open in SWH · Raw bytes