.psl
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.
15.9K
total files
2.4K
first seen 2021–2025 (15.4%)
2018
median year (half its files since)
Case variants in archive: .psl (13.8K), .PSL (2.1K), .PsL (3) — aggregated above.
Attribution status
This extension is attributed to ParaSail — every claim across all sources (including secondary ones) points to a single language.
Authoritative sources: ✗ Linguist · no claim △ Pygments · secondary ✗ Wikidata · no claim △ Wikipedia · secondary
Claimants (2)
Languages that list
.psl among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| ParaSail | pygments | secondary |
| ParaSail | wikipedia | proposed |
Wikidata says… (2)
File formats, image formats, audio codecs and other non-PL
entities that claim
.psl 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 |
|---|---|---|---|---|---|
| IBM Personal Science Laboratory experiment Q105864624 file format | file format | — | application/octet-stream | — | Use as new PL ↗ |
| Pattern Space Layout format Q105864431 file format | file format | — | text/plain | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .psl in our local mirror yet.