Gradio is a 42K+ star Apache-2.0 Python library for building interactive web interfaces around machine-learning functions and apps. It supports 40+ components for text, images, audio, video, 3D, chat, plots, JSON, and dataframes. Apps can be hosted free on Hugging Face Spaces, shared through public links, or extended with server-side rendering, streaming, API clients, and MCP server support.
Best FastHTML Alternatives
2 editor-verified alternatives · FastHTML overview →
source: tools.alternatives · stored order · active records only; review scores are annotations and never change membership or order
TypeScript library extending React Suspense API with declarative components and hooks for production applications. Provides ErrorBoundary with selective error catching via shouldCatch, SSR-safe Suspense with clientOnly prop, Delay component preventing loading flashes, ErrorBoundaryGroup for coordinated resets, and data fetching components including SuspenseQuery and SuspenseInfiniteQuery. MIT licensed by Toss with three years of active development.
Open-source FastHTML alternatives
Gradio, Suspensive — see all open-source developer tools.
FAQ
What is the best FastHTML alternative?
Gradio tops our editor-verified list of 2 FastHTML alternatives, scoring 90/100 in our hands-on review.
Are there open-source FastHTML alternatives?
Yes — Gradio, Suspensive are open source.