[](https://github.com/finos/perspective/actions/workflows/build.yaml)
[](https://www.npmjs.com/package/@finos/perspective)
[](https://pypi.python.org/pypi/perspective-python)
[](https://crates.io/crates/perspective)
Perspective is an interactive analytics and data visualization component,
which is especially well-suited for large and/or streaming
datasets. Use it to create user-configurable reports, dashboards, notebooks and
applications.
### Features
- A fast, memory efficient streaming query engine, written in C++ and compiled
for [WebAssembly](https://webassembly.org/),
[Python](https://www.python.org/) and [Rust](https://www.rust-lang.org/),
with read/write/streaming for [Apache Arrow](https://arrow.apache.org/), and
a high-performance columnar expression language based on
[ExprTK](https://github.com/ArashPartow/exprtk).
- A framework-agnostic User Interface packaged as a
[Custom Element](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_custom_elements),
powered either in-browser via WebAssembly or virtually via WebSocket server
(Python/Node/Rust).
- A [JupyterLab](https://jupyter.org/) widget and Python client library, for
interactive data analysis in a notebook, as well as _scalable_ production
applications.
### Documentation
- [Project Site](https://perspective.finos.org/)
- [User Guide](https://perspective.finos.org/guide/)
- Python API
- [`perspective`](https://perspective.finos.org/python/index.html)
- [`perspective.widget`](https://perspective.finos.org/python/perspective/widget.html)
- [`perspective.handlers.aiohttp`](https://perspective.finos.org/python/perspective/handlers/aiohttp.htm)
- [`perspective.handlers.starlette`](https://perspective.finos.org/python/perspective/handlers/starlett.htm)
- [`perspective.handlers.tornado`](https://perspective.finos.org/python/perspective/handlers/tornado.htm)
- JavaScript API
- [`@finos/perspective` Browser](https://perspective.finos.org/browser/modules/src_ts_perspective.browser.ts.html)
- [`@finos/perspective` Node.js](https://perspective.finos.org/node/modules/src_ts_perspective.node.ts.html)
- [`@finos/perspective-viewer`](https://perspective.finos.org/viewer/modules/perspective-viewer.html)
- [`@finos/perspective-react`](https://perspective.finos.org/react/index.html)
- Rust API
- [`perspective`](https://docs.rs/perspective/latest/perspective/)
- [`perspective-client`](https://docs.rs/perspective-client/latest/perspective_client/)
- [`perspective-server`](https://docs.rs/perspective-server/latest/perspective_server/)
- [`perspective-python`](https://docs.rs/perspective-python/latest/perspective_python/)
- [`perspective-js`](https://docs.rs/perspective-js/latest/perspective_js/)
- [`perspective-viewer`](https://docs.rs/perspective-viewer/latest/perspective_viewer/)
### Examples
