PhlexStunning server-side rendered views

A little Ruby gem for building HTML and SVG view components.

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Pure, beautiful Ruby

Phlex gives you HTML semantics in Ruby so you can use your existing skills designing object-oriented views.

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Phlex renders HTML at ~1.4gbps per core on a MacBook Pro (M3 Max) and it doesn’t slow exponentially the more components you extract.

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Phlex works great with Rails. It supports all Rails helpers and plays nicely with ERB, ViewComponent, Stimulus, Turbo and Tailwind.

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Use tools like RubyLSP, RuboCop and SimpleCov.

Package up components into Kits (Ruby modules) for easy reuse across projects.

Phlex is designed to structurally prevent cross-site-scripting (XSS) attacks.

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Phlex components only depend on the data you pass in, making them easier to test and reuse.

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Phlex has no dependencies and the Rails extension only depends on Rails itself.

Render a view targeting a specific fragment of HTML and Phlex only does the work to render just the parts you want.

Phlex can stream responses to improve time-to-first-byte (TTFB). Let users see content before the database has even responded.

Rails-compatible fragment caching lets you control how different parts of your view are cached.

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You can also use the Phlex DSL to build HTML and SVG strings directly, without creating a component class.