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new 0.8.0-rc1	Apr 11, 2025
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0.0.3	Nov 27, 2022

#1645 in HTTP server

63,486 downloads per month
Used in 50 crates (35 directly)

MIT license

240KB
4.5K SLoC

Leptos Meta

Leptos Meta allows you to modify content in a document’s <head> from within components using the Leptos web framework.

Document metadata is updated automatically when running in the browser. For server-side rendering, after the component tree is rendered to HTML, ServerMetaContextOutput::inject_meta_context will inject meta tags into a stream of HTML inside the <head>.

use leptos::prelude::*;
use leptos_meta::*;

#[component]
fn MyApp() -> impl IntoView {
    // Provides a [`MetaContext`], if there is not already one provided.
    provide_meta_context();

    let (name, set_name) = create_signal("Alice".to_string());

    view! {
      <Title
        // reactively sets document.title when `name` changes
        text=move || name.get()
        // applies the `formatter` function to the `text` value
        formatter=|text| format!("“{text}” is your name")
      />
      <main>
        <input
          prop:value=move || name.get()
          on:input=move |ev| set_name.set(event_target_value(&ev))
        />
      </main>
    }
}

Feature Flags

ssr Server-side rendering: Generate an HTML string (typically on the server)
tracing Adds integration with the tracing crate.

Important Note: If you’re using server-side rendering, you should enable ssr.

Dependencies

~22–34MB
~546K SLoC