Preswald
Recommend & Upvote | 10 I am a co-founder
Preswald is an AI-powered assistant that streamlines the creation of dashboards, internal tools, and data applications. It provides a lightning-fast, reactive runtime, pre-built UI components (like tables, charts, and input fields), and effortless one-click deployment
Preswald is a programmable workspace where you build and deploy interactive Python data apps—right in your browser. Think Replit meets Streamlit, but reactive, stateful, and purpose-built for data workflows like investment reports, financial models, and product analytics.
Why it’s powerful:
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Full project environment – Complete with a file system, code editor, and live preview.
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Pure browser Python runtime (Pyodide) – Run analysis code without a backend. No servers, no setup.
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AI-powered coding – An in-place AI assistant (like Cursor, but for data) helps write, refactor, and optimize your reports.
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One-click sharing – Deploy to Structured Cloud, GCP, or export statically. No hosting headaches—just share the link.
Why we built it:
Founders, PMs, and analysts waste too much time wrestling with frontend code, hosting, and auth just to turn insights into usable tools. Preswald lets you stay in Python while shipping real, interactive apps—drill-downs, filters, and all—without complex deployments.
The magic? Reactivity.
Every component and computation is a tracked "atom." Adjust a slider, tweak a threshold, and only the necessary logic reruns—no full refreshes. The same app runs client-side or on a FastAPI server with zero code changes.
Free options
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