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Gradio

Build and share ML web apps in Python with a few lines of code

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.

About Gradio

Gradio is a Python-first interface framework for turning machine-learning functions, notebooks, and model workflows into shareable web apps without requiring a separate frontend stack. Current Gradio 6 materials emphasize the same low-friction workflow while showing a broader app surface: 40+ components cover text, images, audio, video, 3D, chat, plots, JSON, and dataframes, so teams can build useful interfaces around many model and data types.

Deployment remains a core strength. Official Gradio pages describe free permanent hosting on Hugging Face Spaces, quick public links for local demos, and API access through Python and JavaScript clients. The docs also expose server-side rendering mode, streaming behavior, MCP server support for documented functions, and backend benefits such as queuing, ZeroGPU support, and Spaces hosting when using Gradio server patterns.

Gradio is best suited for demos, internal model tools, lightweight ML products, and review workflows where Python developers need to ship an interface quickly. Teams running high-concurrency public products may still pair it with dedicated infrastructure, but the combination of Python ergonomics, Hugging Face deployment, API access, and current Gradio 6 capabilities keeps it one of the most practical ways to present ML systems to users.

Pricing & Platform Specs

Pricing Summary

Free and 100% open source under the Apache-2.0 license for self-hosted local execution, custom servers, and containerized deployments with zero licensing fees. Built-in sharing provides free temporary public tunneling (share=True, up to 72 hours). Permanent cloud hosting is available via Hugging Face Spaces with a free CPU Basic tier (2 vCPU, 16 GB RAM) and quota-based ZeroGPU access, alongside dedicated hourly GPU compute options (e.g., NVIDIA T4, L4, A10G from ~$0.40/hr) with no base software fees.

full pricing breakdown →

Supported Platforms

Python, any OS, deploys to Hugging Face Spaces

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Community experience

Sources & verification

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FAQ

What is Gradio?

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.

Is Gradio free?

Yes — Gradio is open source and free to use. Free and 100% open source under the Apache-2.0 license for self-hosted local execution, custom servers, and containerized deployments with zero licensing fees. Built-in sharing provides free temporary public tunneling (share=True, up to 72 hours). Permanent cloud hosting is available via Hugging Face Spaces with a free CPU Basic tier (2 vCPU, 16 GB RAM) and quota-based ZeroGPU access, alongside dedicated hourly GPU compute options (e.g., NVIDIA T4, L4, A10G from ~$0.40/hr) with no base software fees.

Is Gradio open source?

Yes — Gradio is open source.

Is Gradio still maintained?

Yes — Gradio is active. Its listing was last verified on September 6, 2026.

What are the best Gradio alternatives?

The first editor-selected Gradio alternatives are Stagewise, assistant-ui.

How does Gradio score in our review?

The published editorial review lists Gradio at 90/100 overall across speed, privacy, and developer experience. Check the review's evidence status and test metadata for its verification level.