fantomas 8.0.9
Prefix ReservedSee the version list below for details.
dotnet tool install --global fantomas --version 8.0.9
dotnet new tool-manifest
dotnet tool install --local fantomas --version 8.0.9
#tool dotnet:?package=fantomas&version=8.0.9
nuke :add-package fantomas --version 8.0.9
Fantomas

An opinionated F# source code formatter.
dotnet tool install fantomas
Documentation is available at https://fsprojects.github.io/fantomas/docs/
If you point a coding agent at Fantomas, give it llms.txt for an index of the documentation, or llms-full.txt for all of it in one file.
Reporting a bug
Report bugs through the online tool, which opens an issue with everything needed to reproduce it.
With a coding agent, the fantomas-report skill shrinks the file Fantomas failed on to a minimal sample and opens the same issue form for you to review:
npx skills add fsprojects/fantomas --skill fantomas-report -g
See Reporting a bug for more.
Contributing Guidelines
See the Contribution Guidelines and our contributors documentation
| Product | Versions Compatible and additional computed target framework versions. |
|---|---|
| .NET | net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. |
This package has no dependencies.
| Version | Downloads | Last Updated |
|---|---|---|
| 9.0.0-alpha-001 | 205 | 10/15/2026 |
| 8.0.10 | 6,173 | 10/14/2026 |
| 8.0.9 | 110 | 10/14/2026 |
| 8.0.8 | 4,390 | 10/9/2026 |
| 8.0.7 | 5,285 | 10/5/2026 |
| 8.0.6 | 3,554 | 10/1/2026 |
| 8.0.5 | 15,138 | 9/25/2026 |
| 8.0.4 | 2,154 | 9/23/2026 |
| 8.0.3 | 633 | 9/23/2026 |
| 8.0.2 | 4,176 | 9/22/2026 |
| 8.0.1 | 1,904 | 9/21/2026 |
| 8.0.0 | 38,373 | 9/15/2026 |
| 8.0.0-beta-003 | 1,024 | 9/12/2026 |
| 8.0.0-beta-002 | 351 | 9/8/2026 |
| 8.0.0-beta-001 | 1,313 | 9/1/2026 |
| 8.0.0-alpha-026 | 503 | 8/29/2026 |
| 8.0.0-alpha-025 | 243 | 8/28/2026 |
| 8.0.0-alpha-024 | 140 | 8/28/2026 |
| 8.0.0-alpha-023 | 145 | 8/28/2026 |
| 8.0.0-alpha-022 | 370 | 8/27/2026 |
### Fixed
- Comment before a let in the right-hand side of an infix operator is lost. [#3522](https://github.com/fsprojects/fantomas/issues/3522)