Open-source alternatives guide · Updated 2026

Best open-source alternatives to Streamlit

Compare the best free and open-source alternatives to Streamlit — 2 verified projects with explicit catalog relationships. Inspect licenses, GitHub activity, self-hosting signals, and migration fit before you switch.

2verified alternatives
1self-hosted signals
2categories

Only explicit alternative relationships are shown—never inferred competitor claims.

Overview

This guide compares 2 verified open-source alternatives to Streamlit, including Reflex and MDMA.

Projects appear across Data & Analytics and AI & Machine Learning. 1 option includes a self-hosting signal — see the self-hosted catalog. Ranking follows public GitHub stars and recorded momentum—not vendor marketing. Compare projects side by side, then confirm license fit, migration effort, and operational ownership before adopting any option.

Strongest repository-activity signal: Reflex · Jump to ranking · 28.6K stars · self-hostable

About Streamlit

Proprietary product with documented open-source alternatives cataloged on OpenSourceChoice. Compare licenses, repository activity, and self-hosting options befo

Ranked open-source alternatives to Streamlit

Compare capabilities, licensing, and ownership model. Stars help with discovery; they are not a security or product-fit guarantee.

Reflex

Open-source alternative to Streamlit

Data & AnalyticsApache-2.0Self-hosted

🕸️ Web apps in pure Python 🐍

🕸️ Web apps in pure Python 🐍 Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Data teams
Deployment: Self-hostable
License: Apache-2.0
Activity: Updated 26 hours ago

Key capabilities

open-source

python

developer-tools dashboard

MDMA

Open-source alternative to Streamlit

AI & Machine LearningMITAI-native

Interactive documents from Markdown. Extends MD with forms, approvals, webhooks, and more — built for next gen apps

Interactive documents from Markdown. Extends MD with forms, approvals, webhooks, and more — built for next gen apps Review the official repository, license, release activity, and d

Best for: AI product teams
Deployment: Inspectable source
License: MIT
Activity: Updated Jul 15, 2026

Key capabilities

typescript

react

llm

ai-agents

How to choose a Streamlit alternative

Map must-have capabilitiesList the workflows in Streamlit you cannot drop during migration.

Verify the licenseConfirm it fits your use, distribution, and compliance model. Browse license briefs.

Run a proof of conceptTest real data, integrations, clients, and failure modes. Use Compare for side-by-side checks.

Plan ownershipAssess upgrades, backups, support, and an exit path. Read when self-hosting is worth it.

Frequently asked questions about Streamlit alternatives

What are the best open-source alternatives to Streamlit?

OpenSourceChoice currently lists 2 projects with an explicit alternative relationship to Streamlit. Catalog highlights include Reflex and MDMA. Rankings follow public GitHub stars and recorded momentum—not paid placement. Match capabilities and license fit to your workflow before adopting any option.

Are open-source alternatives to Streamlit free?

Most catalogued alternatives publish source under OSI or source-available licenses and are free to inspect. Hosting, commercial support, or cloud model APIs may still cost money. Always read the project license for your use case.

Can I self-host an alternative to Streamlit?

1 option in this list carry a self-hosting signal. Confirm the official install guide, backups, upgrades, and hardening steps before production.

How should I evaluate Streamlit alternatives?

Map must-have Streamlit workflows, verify license and compliance fit, run a proof of concept with real data and integrations, then plan ownership for upgrades, backups, support, and an exit path.