pyrefly-org / pyrefly
A fast type checker and language server for Python
- Stars
- 7,200 stars
- Forks
- 600 forks
- Language
- Rust
- License
- MIT
- Created
- Feb 19, 2025
- Last push
- Nov 13, 2026
- Updated
- Nov 13, 2026
Why these Tags: an agent read the README and quoted it
- Type checker from the description:
A fast type checker and language server for Python
- Language server from the readme:
Full-featured language server.
- VS Code extension from the readme:
It is available as a command-line tool and an extension for popular IDEs and editors such as VSCode,
An agent gave these Tags from the fixed Tag list in the AwesomeRepos source code. A code check kept each Tag only when its quote is in the text. A wrong Tag? Report an error with the form at the end of this page.
In the Repository Index since Oct 22, 2026.
Star History
202 days recorded, Apr 26, 2026 – Nov 13, 2026 (UTC). Net change +1,666 stars.
The star count of each day is the latest count minus the net stars of the later days.
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Star History chart
[](https://awesomerepos.com/pyrefly-org/pyrefly) Badge
[](https://awesomerepos.com/pyrefly-org/pyrefly) Timeline
It gained stars on 196 of the 202 days recorded since Apr 26, 2026.
Its largest 7 days were May 13, 2026 to May 19, 2026: 585 stars.
In the 30 days to Nov 13, 2026 it got 113 stars, 24% fewer than in the 30 days before.
It had 5,534 stars before Apr 26, 2026 and has 7,200 stars now: 2,800 fewer than 10,000.
- Created on the Repository Host
- +93 stars in one day
- Largest star day recorded: +100 stars
- +88 stars in one day
- Release 1.3.1
- Release 1.2.1
- Release 1.3.2
- Release 1.4.0
- Entered the Repository Index
- Release 1.4.1
- Latest push
- Renamed from meta/pyrefly to pyrefly-org/pyrefly
The timeline comes from the creation date and the releases on the Repository Host, the Admission, the Star History, and the Observations. Star milestones show only when the Star History records the day. The list shows up to 5 stable releases from the latest 10 releases recorded. When none of them is stable, one item counts the pre-releases. On the chart of net stars each day, a solid line marks each recorded release.
Forks and pushes
From 24 Observations, Oct 22, 2026 – Nov 14, 2026. Forks +35. AwesomeRepos saw a new push on 23 of 23 days.
- Oct 23, 2026: new push
- Oct 24, 2026: new push
- Oct 25, 2026: new push
- Oct 26, 2026: new push
- Oct 27, 2026: new push
- Oct 28, 2026: new push
- Oct 29, 2026: new push
- Oct 30, 2026: new push
- Oct 31, 2026: new push
- Nov 1, 2026: new push
- Nov 2, 2026: new push
- Nov 3, 2026: new push
- Nov 4, 2026: new push
- Nov 5, 2026: new push
- Nov 6, 2026: new push
- Nov 7, 2026: new push
- Nov 8, 2026: new push
- Nov 9, 2026: new push
- Nov 10, 2026: new push
- Nov 11, 2026: new push
- Nov 12, 2026: new push
- Nov 13, 2026: new push
- Nov 14, 2026: new push
A filled day: the last push time changed since the Observation before it.
Health facts
Measured facts in four separate dimensions, each with a date and a source. AwesomeRepos does not add them into one score. AwesomeRepos reads the weekly commits, the changelog, and the community files each week for the 5,000 visible repositories with the most stars and for each rising repository. How AwesomeRepos defines each check
Maintenance
2 of 4 checks (2 without data)-
Yes: Not archived
GitHub does not mark the repository as archived. Source
-
Yes: A push in the last 90 days
Last push on 2026-11-13, 0 days ago. Source
-
No data: Commits in the last 13 weeks
No data: AwesomeRepos has not read the weekly commits.
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No data: Commits in 26 or more of the last 52 weeks
No data: AwesomeRepos has not read the weekly commits.
Releases
2 of 3 checks (1 without data)-
Yes: A release in the last 365 days
Newest release 1.4.1 on 2026-11-05, 9 days ago. 10 or more releases in the last 365 days. Source
-
Yes: The newest release tag is a semantic version
The newest release tag is 1.4.1. Source
-
No data: A changelog file at the root
No data: AwesomeRepos has not scanned this repository.
Security practice
0 of 1 check (1 without data)-
No data: A security policy
No data: AwesomeRepos has not scanned this repository.
AwesomeRepos has not asked OpenSSF Scorecard about this repository.
Community files
1 of 3 checks (2 without data)-
Yes: A licence
GitHub finds the licence MIT. Source
-
No data: A contributing guide
No data: AwesomeRepos has not scanned this repository.
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No data: A code of conduct
No data: AwesomeRepos has not scanned this repository.
Dependencies in the index
This section shows the packages that connect this repository to other repositories in the index.
The GitHub dependency graph of this repository names 668 direct packages (scanned on Nov 4, 2026). Packages from 79 other repositories in the index are among them.
No scanned repository names a package from this repository.
Uses (in the index) · 79
- react/react 253K
npm: react, react-dom
- microsoft/TypeScript 112K
npm: typescript
- pytorch/pytorch 105K
PyPI: torch
- astral-sh/uv 92K
Cargo: uv-cache-key, uv-pep440, uv-redacted
-
Cargo: globset, ignore
-
npm: prettier
-
npm: @types/jest, @types/mocha, @types/node, @types/react and 2 more
- astral-sh/ruff 51K
Cargo: ruff_annotate_snippets, ruff_cache, ruff_diagnostics, ruff_notebook and 5 more
-
npm: monaco-editor, monaco-editor-webpack-plugin
- jestjs/jest 45K
npm: jest, jest-environment-jsdom
Show all 79
- babel/babel 44K
npm: @babel/helpers, @babel/preset-typescript, @babel/runtime, @babel/runtime-corejs3
- evanw/esbuild 40K
npm: @esbuild/aix-ppc64, @esbuild/android-arm, @esbuild/android-arm64, @esbuild/android-x64 and 23 more
- jax-ml/jax 37K
PyPI: jax, jaxlib
- tokio-rs/tokio 34K
Cargo: tokio, tokio-macros, tokio-util
- numpy/numpy 33K
PyPI: numpy
-
npm: underscore
- python/mypy 21K
PyPI: mypy
- astral-sh/ty 20K
PyPI: ty
- mdx-js/mdx 20K
npm: @mdx-js/react
-
npm: @testing-library/react
-
Cargo: lsp-server
- clap-rs/clap 17K
Cargo: clap, clap_builder, clap_complete, clap_derive and 1 more
- pyodide/pyodide 15K
npm: pyodide
- rayon-rs/rayon 13K
Cargo: rayon, rayon-core
-
npm: ts-node
- PrismJS/prism 13K
npm: prismjs
-
Cargo: windows-link, windows-sys, windows-targets, windows_aarch64_gnullvm and 7 more
-
npm: http-proxy-middleware
- gregberge/svgr 11K
npm: @svgr/webpack
- serde-rs/serde 11K
Cargo: serde, serde_core, serde_derive
- lukeed/clsx 9.8K
npm: clsx
- arogozhnikov/einops 9.6K
PyPI: einops
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Cargo: js-sys, wasm-bindgen, wasm-bindgen-macro, wasm-bindgen-macro-support and 2 more
-
GitHub Actions: actions/checkout
-
Cargo: crossbeam-channel, crossbeam-deque, crossbeam-epoch, crossbeam-utils
- tokio-rs/mio 7.1K
Cargo: mio
- kulshekhar/ts-jest 7.1K
npm: ts-jest
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Cargo: tracing, tracing-attributes, tracing-core, tracing-subscriber
- dtolnay/anyhow 6.7K
Cargo: anyhow
- BLAKE3-team/BLAKE3 6.5K
Cargo: blake3
- rust-lang/futures-rs 5.9K
Cargo: futures, futures-channel, futures-core, futures-executor and 5 more
- PyO3/maturin 5.9K
PyPI: maturin
-
npm: npm-run-all
- serde-rs/json 5.7K
Cargo: serde_json, serde_jsonrc
- dtolnay/thiserror 5.6K
Cargo: thiserror, thiserror-impl
- console-rs/indicatif 5.2K
Cargo: indicatif
-
GitHub Actions: actions/github-script
-
GitHub Actions: actions/setup-node
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npm: @monaco-editor/react
- plotters-rs/plotters 4.7K
Cargo: plotters, plotters-backend, plotters-svg
-
npm: @vscode/python-extension
-
GitHub Actions: JamesIves/github-pages-deploy-action
-
npm: @testing-library/jest-dom
- pieroxy/lz-string 4.4K
npm: lz-string
-
GitHub Actions: actions/upload-artifact, actions/upload-artifact/merge
- xacrimon/dashmap 4.1K
Cargo: dashmap
- rust-lang/regex 4.1K
Cargo: regex, regex-automata, regex-syntax
- chronotope/chrono 3.9K
Cargo: chrono
-
npm: react-json-view
- notify-rs/notify 3.5K
Cargo: notify, notify-types
- dtolnay/syn 3.4K
Cargo: syn
- Amanieu/parking_lot 3.4K
Cargo: lock_api, parking_lot, parking_lot_core
-
Cargo: itertools
- nix-rust/nix 3.1K
Cargo: nix
- 101arrowz/fflate 3.1K
npm: fflate
-
Cargo: hashbrown
-
Cargo: jiff, jiff-core, jiff-static
-
npm: serialize-javascript
-
Cargo: embedded-io
- rust-lang/libc 2.6K
Cargo: libc
- google/zerocopy 2.6K
Cargo: zerocopy, zerocopy-derive
- rust-lang/log 2.6K
Cargo: log
-
Cargo: capnp
- indexmap-rs/indexmap 2.5K
Cargo: indexmap
- fitzgen/bumpalo 2.4K
Cargo: bumpalo
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npm: react-helmet-async
- RustCrypto/hashes 2.3K
Cargo: sha2
- tokio-rs/bytes 2.3K
Cargo: bytes
- actions/setup-python 2.3K
GitHub Actions: actions/setup-python
Used by (in the index) · 0
None.
Sources: the GitHub dependency graph of each repository, and deps.dev for the source repository of each package (checked on Nov 4, 2026). A dependency graph also names development packages. deps.dev takes most source repositories from package metadata. How the dependency graph is made
Observations
Latest Observation, Nov 14, 2026: 7,200 stars, 600 forks, last push Nov 13, 2026, not archived. One of 24 Observations since Oct 22, 2026.