Flet, the open-source Python framework for building cross-platform apps, has reached its 1.0 release. Founder Feodor Fitsner published the stable version in September, following a ground-up rewrite that went through alpha and beta stages over several months.
Flet lets developers write a single Python codebase and deploy it as a web app, a desktop app for Windows, macOS or Linux, or a mobile app for iOS and Android, without touching HTML, CSS or JavaScript. The framework now ships with more than 150 built-in controls and services, covering everything from basic layout to platform-specific features.
Because the 1.0 rewrite introduced breaking changes, existing Flet apps built on earlier versions need manual migration rather than a drop-in upgrade; the beta, released as version 0.80.0, carried the same warning.
The release also adds developer tooling: a new Flet MCP server gives AI coding assistants access to version-specific API details, code examples, icon references and CLI options, and Flet Studio's browser-based environment now includes a built-in AI agent for building apps interactively.
Flet's maintainers point to strong early adoption figures, citing more than nine million PyPI downloads, over 16,700 GitHub stars and more than 1,000 merged pull requests. For Python developers who want to avoid maintaining separate web, desktop and mobile codebases, Flet 1.0 is the framework's first release pitched as production-ready rather than experimental.
Source: MarkTechPost
