Flet Team Released 1.0 Version for Python Developers
The framework enables production app deployment across eight platforms using a unified Python codebase.
Updated on Sept. 20, 2026 in Software
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The Flet team has released Flet 1.0.0, a framework that allows developers to build production applications across eight platforms including mobile, desktop, and web. The toolkit is now available on PyPI under the Apache 2.0 license.
Why it matters
Flet aims to streamline cross-platform development by abstracting UI rendering through Google's Flutter toolkit, allowing Python developers to manage diverse deployment targets without switching languages.
The 1.0 release includes a 6.7x improvement in control diffing performance and supports more than 100 packages in the official index. Developers can utilize both declarative and imperative UI styles, requiring a minimum of Python 3.10.
The players
Flet
An open-source framework that enables the creation of cross-platform applications using Python by leveraging Flutter for UI rendering.
The details
Flet functions by rendering user interfaces using Flutter widgets—pre-built UI components provided by Google's framework. Native application builds are managed via a "dart-bridge," which facilitates communication between the Python and Dart runtimes, while a tool called "mobile-forge" automates the creation of wheel builds for iOS and Android environments.
Timeline
The Flet project began development in 2022.
The team released Flet 1.0 in September 2026.
The Tech Race
Flet occupies a competitive niche by providing a Python-first alternative to established cross-platform frameworks like React Native or Flutter itself. Its trajectory suggests a shift toward integrating Python into the mobile ecosystem by bypassing the need for native language proficiency in Swift or Kotlin.
Developers can now deploy apps to Windows, macOS, Linux, iOS, Android, and web environments from a single Python 3.10+ codebase. Existing projects will require migration to the stable 1.0 build to utilize the improved event loop handling and updated control diffing speeds.
The takeaway
Flet 1.0 marks the project's transition from experimental tool to a stable option for production-grade, multi-platform software. Developers should watch the Flet package index for new library additions that utilize the updated 1.0 SDK architecture.
Further reading
For broader trends in cross-platform development, visit our Software section.
Live Poll
Would you prefer building cross-platform apps using only one programming language?
