.kts
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.
4.5M
total files
3.8M
first seen 2021–2025 (84.9%)
2023
median year (half its files since)
Case variants in archive: .kts (4.5M), .KTS (32), .KTs (1), .Kts (1), .kTs (1) — aggregated above.
Attribution status
This extension is attributed to Kotlin as primary by 1 authoritative claim.
Authoritative sources: △ Linguist · secondary △ Pygments · secondary ✓ Wikidata · Q3816639 ✗ Wikipedia · no claim
Claimants (3)
Languages that list
.kts among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| Kotlin | wikidata | primary |
| Kotlin | linguist | secondary |
| Kotlin | pygments | secondary |
Wikidata says… (1)
File formats, image formats, audio codecs and other non-PL
entities that claim
.kts 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 |
|---|---|---|---|---|---|
| Kotlin Source Code File Q126951583 file format | file format | — | text/x-kotlin | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .kts in our local mirror yet.