# Topcoat

Rust framework that renders full-stack web apps as HTML on the server, with client reactivity compiled from the same Rust code.


Source: https://findsoftware.frbit.cloud/topcoat/
Last reviewed: 2026-10-26
Listed since: 2026-10-26

## Record

### Links

- repository: https://github.com/tokio-rs/topcoat
- docs: https://docs.rs/topcoat/latest/topcoat

### Identity

- status: active
- maintainer: Julien Scholz
- maintainerType: unknown
- parent: unknown
- firstRelease: 2026
- hqCountry: unknown

### Kind

- category: framework
- hosting: binary
- language: rust
- runtime: binary
- runtimeMin: unknown
- basedOn: unknown

### Content

- contentStore: unknown
- databases: sqlite
- adminUi: unknown
- headlessApi: unknown
- templating: rust view! macro
- i18n: Fluent translation files

### Rendering and deploy

- runsAs: local, always-on
- renderingModes: server
- installMethod: cargo install of the topcoat-cli crate, then topcoat new

### License

- licenseModel: open-source
- license: MIT

### Releases

- currentMajor: 0
- latestReleaseDate: 2026-10-24

### Adoption

- githubStargazers: 6226
- packagistDownloads: not applicable
- npmWeeklyDownloads: not applicable
- contributors: 37
- pluginCount: unknown
- packagistMonthlyDownloads: unknown
- ecosystemsMonthlyDownloads: unknown
- httpArchiveSites: unknown
- wordpressActiveInstalls: unknown
- dependentRepos: unknown
- dependentPackages: unknown

### Sources

- urls: https://api.github.com/repos/tokio-rs/topcoat (read 2026-10-26)
- urls: https://github.com/tokio-rs/topcoat/blob/main/README.md (read 2026-10-26)
- maintainer: https://github.com/tokio-rs/topcoat/blob/main/LICENSE (read 2026-10-26)
- language: https://api.github.com/repos/tokio-rs/topcoat (read 2026-10-26)
- category: https://github.com/tokio-rs/topcoat/blob/main/README.md (read 2026-10-26)
- runtime: https://github.com/tokio-rs/topcoat/blob/main/docs/getting_started.md (read 2026-10-26)
- installMethod: https://github.com/tokio-rs/topcoat/blob/main/docs/getting_started.md (read 2026-10-26)
- templating: https://github.com/tokio-rs/topcoat/blob/main/README.md (read 2026-10-26)
- databases: https://github.com/tokio-rs/topcoat/blob/main/docs/getting_started.md (read 2026-10-26)
- i18n: https://github.com/tokio-rs/topcoat/blob/main/README.md (read 2026-10-26)
- renderingModes: https://github.com/tokio-rs/topcoat/blob/main/README.md (read 2026-10-26)
- runsAs: https://github.com/tokio-rs/topcoat/blob/main/docs/getting_started.md (read 2026-10-26)
- runsAs: https://raw.githubusercontent.com/tokio-rs/topcoat/main/llms.txt (read 2026-10-26)
- license: https://api.github.com/repos/tokio-rs/topcoat (read 2026-10-26)
- licenseModel: https://github.com/tokio-rs/topcoat/blob/main/LICENSE (read 2026-10-26)
- firstRelease: https://api.github.com/repos/tokio-rs/topcoat/releases (read 2026-10-26)
- currentMajor: https://api.github.com/repos/tokio-rs/topcoat/releases (read 2026-10-26)
- latestReleaseDate: https://api.github.com/repos/tokio-rs/topcoat/releases (read 2026-10-26)
- githubStargazers: https://api.github.com/repos/tokio-rs/topcoat (read 2026-10-26)
- contributors: https://api.github.com/repos/tokio-rs/topcoat/contributors (read 2026-10-26)

## Notes

Topcoat is a Rust framework for full-stack web apps that renders all of its markup on the server. Async components produce the HTML and can query the database directly, and a `$(...)` expression is translated to JavaScript so that some interactions re-run in the browser without a WebAssembly bundle or a separate client build step.

Routes can be inferred from the module tree, and the `view!` macro writes HTML inside Rust. The `topcoat` CLI creates an app, and its recommended preset includes a todo example backed by Toasty and SQLite; `topcoat dev` starts the development server. The component library, Topcoat UI, is copied into the project so that its components can be edited there.

## Worth knowing

The README calls the project early-stage and experimental and says to expect breaking changes. The roadmap lists deployment docs, static export and pre-rendering as planned rather than built.

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Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Attributes are recorded, never scored; absent means unknown.
Credit, in full: FindSoftware, CC BY 4.0