.ecl
3 claimants
3 primary
0 secondary
shared primary (3)
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.
215.7K
total files
40.4K
first seen 2021–2025 (18.7%)
2018
median year (half its files since)
Case variants in archive: .ecl (213.5K), .ECL (2.1K), .Ecl (161), .EcL (1) — aggregated above.
Attribution status
This extension is attributed to ECL; ECLiPSe; Prolog as primary by 5 authoritative claims.
Claimants (5)
Languages that list
.ecl among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| ECL | linguist | primary |
| ECL | pygments | primary |
| ECLiPSe | linguist | primary |
| ECLiPSe | pygments | primary |
| Prolog | pygments | primary |
Wikidata says… (2)
File formats, image formats, audio codecs and other non-PL
entities that claim
.ecl 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 |
|---|---|---|---|---|---|
| Eclipse text Q105858344 file format | file format | — | — | — | Use as new PL ↗ |
| Prolog source code file Q126951804 file format | file format | — | text/x-prolog | — | Use as new PL ↗ |
Disambiguation rules (2)
Linguist heuristics that decide, by content, which language a
.ecl file actually is.| Rule | Predicts | Kind | Predicates (truncated) | Measured on SWH |
|---|---|---|---|---|
h/linguist/.ecl/0 | ECLiPSe | predicates | [{"kind": "any", "regexes": ["^[^#]+:-"]}] | |
h/linguist/.ecl/1 | ECL | predicates | [{"kind": "any", "regexes": [":="]}] |
SWH-mined examples (0)
No archived examples for .ecl in our local mirror yet.