.ftlDistinct 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.
Case variants in archive: .ftl (3.4M), .FTL (89), .Ftl (5), .ftL (1) — aggregated above.
This extension is attributed to Fluent; FreeMarker as primary by 2 authoritative claims.
.ftl among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| Fluent | linguist | primary |
| FreeMarker | linguist | primary |
.ftl 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 |
|---|---|---|---|---|---|
| Family Tree Legends data Q105855355 file format | file format | — | — | — | Use as new PL ↗ |
| Faster Than Light mod Q105855192 file format | file format | — | — | — | Use as new PL ↗ |
| FTL file Q135267112 file format | file format | — | — | — | Use as new PL ↗ |
.ftl file actually is.| Rule | Predicts | Kind | Predicates (truncated) | Measured on SWH |
|---|---|---|---|---|
h/linguist/.ftl/0 | FreeMarker | predicates | [{"kind": "any", "regexes": ["^(?:<|[a-zA-Z-][a-zA-Z0-9_-]+[ \\t]+\\w)|\\$\\{\\w+[^\\r\\n]*?\\}|^[ \\t]*(?:<#--.*?-->|<#(?:[a-z]+)\\s[^>]*>.*?</#(?:[a-z]+)>|\\[#--.*?--\\]|\\[#(?:[a-z]+)\\s[^\\]]*\\]. | |
h/linguist/.ftl/1 | Fluent | predicates | [{"kind": "any", "regexes": ["^-?[a-zA-Z][a-zA-Z0-9_-]* *=|\\{\\$-?[a-zA-Z][-\\w]*(?:\\.[a-zA-Z][-\\w]*)?\\}"]}] |