{"data":{"slug":"flet","name":"Flet","tagline":"Apache-2.0 cross-platform GUI from Python","category":"python","categoryName":"Python","url":"https://flet.dev","github":"https://github.com/flet-dev/flet","pricing":"open-source","hook":"Flet lets Python developers build cross-platform GUI apps without dropping into a separate native UI language for every target.","whatsGood":"Apache-2.0 (flet-dev/flet). A Python-first UI framework for shipping desktop, web, and mobile-shaped interfaces from one codebase, with a practical path for developers who want app UI rather than a terminal program. The project and docs are at flet.dev.","theCatch":"Vs Textual: Flet targets cross-platform graphical interfaces, while Textual is a terminal UI. Cross-platform does not erase platform packaging, runtime, or native-widget trade-offs; verify the project’s current release/support matrix before pinning a version. No unreleased 1.0 claim here.","verdict":"Apache-2.0 Python UI framework. Reach for graphical cross-platform apps, not a Textual-style TUI; verify the release surface you pin.","addedAt":"2026-09-18","featured":false,"domain":"Python","subSpecialty":"UI","subcategory":"UI","tags":["self-host","permissive","active"],"capabilities":["python","gui","multi-platform"],"surfaces":["Self-host"],"ecosystem":["Python","Multi-platform"],"licenseModel":"Apache-2.0","githubStars":17386,"starsPerWeek":73,"access":"free","archived":false,"repo":{"createdAt":"2022-03-24","pushedAt":"2026-10-18","license":"Apache-2.0","archived":false,"checkedAt":"2026-10-19"}},"related":[{"slug":"fastapi","name":"FastAPI","tagline":"Modern Python APIs at startup speed"},{"slug":"pydantic","name":"Pydantic","tagline":"Data validation using Python type hints"},{"slug":"uv","name":"uv","tagline":"Python packaging at Rust speed"},{"slug":"ruff","name":"Ruff","tagline":"Python linter faster than your test suite"},{"slug":"polars","name":"Polars","tagline":"DataFrames that respect your CPU"}],"links":{"self":"/api/gems/flet","html":"/gems/flet","markdown":"/gems/flet.md","category":"/api/gems?category=python","categoryPage":"/stacks/python"}}