FSharp.ViewEngine 2026.2.3

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package FSharp.ViewEngine --version 2026.2.3
                    


                    

                
NuGet\Install-Package FSharp.ViewEngine -Version 2026.2.3
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="FSharp.ViewEngine" Version="2026.2.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="FSharp.ViewEngine" Version="2026.2.3" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="FSharp.ViewEngine" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add FSharp.ViewEngine --version 2026.2.3
                    


                    

                
#r "nuget: FSharp.ViewEngine, 2026.2.3"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package FSharp.ViewEngine@2026.2.3
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=FSharp.ViewEngine&version=2026.2.3
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=FSharp.ViewEngine&version=2026.2.3
                    


                            Install as a Cake Tool

Publish Deploy NuGet

<p align="center"> <img src="etc/logo.svg" alt="FSharp.ViewEngine" width="128"> </p>

FSharp.ViewEngine

A minimal, fast view engine for F#. Inspired by Giraffe.ViewEngine, Feliz.ViewEngine, Oxpecker.ViewEngine, and Bolero.

FSharp.ViewEngine combines ideas from several F# view engines into a clean, unified DSL:

  • Computation expression syntax (like Oxpecker.ViewEngine and Bolero) for building elements
  • Feliz-style single sequence of attributes and child elements — no separate attribute and children lists
  • Attributes prefixed with underscore by convention (like Giraffe.ViewEngine, e.g. _class, _id, _hxGet), giving clean syntax and nice syntax highlighting
  • Mixed yielding in computation expressions — you can yield strings, elements, and attributes in any order without needing a special _children attribute

The result is a DSL that is as minimal and fast as possible while remaining expressive and type-safe.

Documentation site built using FSharp.ViewEngine available at https://fsharpviewengine.meiermade.com.

See sln/src/Docs for the source code.

Installation

Add the core view engine package.

dotnet add package FSharp.ViewEngine

Usage

open FSharp.ViewEngine
open type Html
open type Htmx
open type Alpine
open type Datastar
open type Tailwind

html {
    _lang "en"
    head {
        title "Test"
        meta { _charset "utf-8" }
        link { _href "/css/compiled.css"; _rel "stylesheet" }
    }
    body {
        _xData "{showContent: false}"
        _class "bg-gray-50"
        div {
            _id "page"
            _class [ "flex"; "flex-col" ]
            h1 { _hxGet "/hello"; _hxTarget "#page"; "Hello" }
            h1 { _hxGet "/world"; _hxTarget "#page"; "World" }
        }
        br
        div {
            _xShow "showContent"
            h2 { "Content" }
            p { "Some content" }
            ul {
                li { "One" }
                li { "Two" }
            }
        }
    }
}
|> Render.toHtmlDocString

<!DOCTYPE html>
<html lang="en">
    <head>
        <title>Test</title>
        <meta charset="utf-8">
        <link href="/css/compiled.css" rel="stylesheet">
    </head>
    <body x-data="{showContent: false}" class="bg-gray-50">
        <div id="page" class="flex flex-col">
            <h1 hx-get="/hello" hx-target="#page">Hello</h1>
            <h1 hx-get="/world" hx-target="#page">World</h1>
        </div>
        <br>
        <div x-show="showContent">
            <h2>Content</h2>
            <p>Some content</p>
            <ul>
                <li>One</li>
                <li>Two</li>
            </ul>
        </div>
    </body>
</html>

Benchmarks

Ran on February 6, 2026 with BenchmarkDotNet MediumRun only.

Command:

cd sln && dotnet run -c Release --project src/Benchmarks/Benchmarks.fsproj

BuildAndRender (mean, lower is better): | Method | Mean | Allocated | |-------------- |----------:|----------:| | ViewEngineApi | 5.763 μs | 11.4 KB | | OxpeckerApi | 7.562 μs | 12.88 KB | | GiraffeApi | 7.925 μs | 23.95 KB | | FelizApi | 11.053 μs | 25.87 KB |

RenderOnly: | Method | Mean | Allocated | |-------------- |---------:|----------:| | ViewEngineApi | 2.464 μs | 2.94 KB | | OxpeckerApi | 2.796 μs | 2.94 KB | | GiraffeApi | 3.176 μs | 12.77 KB | | FelizApi | 6.151 μs | 14.2 KB |

BuildOnly: | Method | Mean | Allocated | |-------------- |---------:|----------:| | ViewEngineApi | 2.153 μs | 8.46 KB | | OxpeckerApi | 5.275 μs | 9.95 KB | | GiraffeApi | 7.323 μs | 11.17 KB | | FelizApi | 7.707 μs | 11.66 KB |

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  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. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (4)

Showing the top 4 NuGet packages that depend on FSharp.ViewEngine:

Package Downloads
FSharp.ViewEngine.Alpine

Package Description
FSharp.ViewEngine.Html

Package Description
FSharp.ViewEngine.Htmx

Package Description
FSharp.ViewEngine.Svg

Package Description

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
2026.2.5 144 2/28/2026
2026.2.4 92 2/28/2026
2026.2.3 89 2/26/2026
2026.2.2 129 2/9/2026
2026.2.1 116 2/7/2026
2026.2.0 98 2/6/2026
2025.9.1 353 9/24/2025
2025.9.0 202 9/23/2025
2024.3.0 685 3/14/2024
2023.10.0 529 10/14/2023
2023.9.1 323 9/21/2023
2023.9.0 362 9/10/2023
2023.8.1 382 8/24/2023
2023.8.0 387 8/7/2023
2023.5.2 411 5/13/2023
2023.5.1 395 5/12/2023
2023.5.0 395 5/11/2023
0.1.0 600 5/10/2023