
Preswald
Preswald is an open-source framework that enables developers to transform Python scripts into interactive data apps, dashboards, and internal tools without writing frontend code.
https://preswald.com/?ref=aipure

Product Information
Updated:Jun 16, 2025
Preswald Monthly Traffic Trends
Preswald received 18.5k visits last month, demonstrating a Slight Decline of -5.6%. Based on our analysis, this trend aligns with typical market dynamics in the AI tools sector.
View history trafficWhat is Preswald
Preswald is a Y Combinator-backed framework designed specifically for data engineers, analysts, and developers who want to create production-ready data applications quickly and efficiently. It provides a streamlined way to build and deploy interactive data tools by leveraging existing Python code. The framework eliminates the need to juggle multiple tools like frontend frameworks, complex backend setups, and boilerplate code by providing an all-in-one solution for data app development.
Key Features of Preswald
Preswald is an open-source framework that enables developers to transform Python scripts into interactive data applications, dashboards, and internal tools without writing frontend code. It features pre-built UI components, a DAG-based workflow system for efficient state management, and one-command deployment capabilities, making it ideal for data teams to quickly build and share analytical tools.
Pre-built UI Components: Provides ready-to-use interface elements like tables, charts, and forms that can be implemented with just Python code, eliminating the need for frontend development
DAG-based Workflow Engine: Uses a directed acyclic graph (DAG) system to manage computation dependencies and selectively update only necessary components when inputs change
One-Command Deployment: Allows instant deployment and sharing of applications with a single command, supporting both local and cloud deployment options
Universal Data Connectivity: Supports multiple data sources including CSV, JSON, Parquet files, and SQL databases with easy configuration through preswald.toml
Use Cases of Preswald
Data Analysis Dashboards: Create interactive dashboards for analyzing and visualizing large datasets, perfect for data scientists and analysts sharing insights with stakeholders
Internal Business Tools: Build custom tools for business operations, reporting, and monitoring without requiring specialized frontend developers
Healthcare Data Analysis: Analyze and visualize population health data, medical records, and clinical trial results with interactive tools that maintain data security
Weather Pattern Analysis: Track and visualize weather data, temperature trends, and climate variations through dynamic interactive applications
Pros
Rapid development with Python-only coding requirements
Efficient computation through selective updates and caching
Easy deployment and sharing capabilities
Strong support for various data sources
Cons
Limited customization compared to full-stack development
Dependency on Python ecosystem
May require learning specific workflow patterns
How to Use Preswald
Install Preswald: Install Preswald using pip: pip install preswald
Initialize Project: Create a new project directory and initialize it with: preswald init. This generates boilerplate files including preswald.toml for configuration.
Configure Data Source: Define your data source (CSV, database, API) in preswald.toml. For sensitive credentials, use secrets.toml.
Create Python Script: Write your Python script using Preswald components. Import with: from preswald import connect, get_df, view, table
Connect to Data: Use connect() to read configuration and get_df() to load your data: data = get_df('your_data_source')
Add UI Components: Add interactive components like tables, charts, buttons using Preswald's built-in UI components (e.g. table(data) for displaying data)
Test Locally: Run your app locally with: preswald run your_script.py. Access at http://localhost:8501
Deploy: Deploy to Preswald Cloud with a single command: preswald deploy. Share the generated URL with others.
Preswald FAQs
Preswald is an open-source framework that allows you to build and deploy interactive data apps, dashboards, and internal tools using Python. It provides pre-built UI components and lets you turn Python scripts into shareable applications without writing frontend code.
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Analytics of Preswald Website
Preswald Traffic & Rankings
18.5K
Monthly Visits
#818207
Global Rank
-
Category Rank
Traffic Trends: Mar 2025-Jun 2025
Preswald User Insights
00:05:40
Avg. Visit Duration
8.12
Pages Per Visit
38.36%
User Bounce Rate
Top Regions of Preswald
US: 82.24%
IN: 16.97%
VN: 0.79%
Others: NAN%