Back to Projects

Flow

Software
Ongoing

Flow is a modern, intuitive web application designed to simplify and democratize web scraping and data extraction.

ReactTypeScriptNode.js

Project Scope

What this project covers — systems owned, responsibilities, and integrations.

Visual node-based workflow builder (drag-and-drop canvas)
Headless browser automation engine (Puppeteer/Playwright)
Scheduling, monitoring, and execution dashboard
Multi-format data export (CSV, JSON, API push)
Full-stack: Next.js frontend + Node.js backend + PostgreSQL + Prisma ORM

The Story

Flow emerged from a simple observation: extracting valuable data from the web shouldn't require an engineering degree or hours of writing brittle scraping scripts. Marketers needed leads, researchers needed datasets, and developers needed a faster way to prototype web automation. We built Flow to bridge this gap. By combining a visual node-based engine with robust underlying orchestration, Flow democratizes web scraping. Our visual canvas allows users to visually define what they need, step-by-step, while the engine handles the complexities of pagination, rate limiting, and dynamic content rendering.

Challenges Faced

Real technical and design problems encountered during development — and how they were resolved.

1

Rendering complex node graphs without performance degradation

Large workflows with 50+ nodes caused re-render storms in React. Resolved by isolating node state into individual Zustand slices per node ID, so edge/position updates for one node don't trigger re-renders across the entire canvas.

2

Handling dynamic, JavaScript-heavy scraping targets

Many modern websites rely on client-side rendering, making simple HTTP-based scraping useless. Flow wraps Puppeteer/Playwright inside a job runner, spawning a headless browser per workflow execution to ensure JS is fully rendered before element selection.

3

Anti-bot detection and rate limiting

Target websites frequently blocked automated requests. The engine integrates configurable request delays, randomized user-agent rotation, and proxy rotation support — making scraping workflows significantly more resilient.

Real-World Impact

Measurable outcomes and meaningful results this project delivered.

No-code web automation

Non-technical users (marketers, researchers) can build robust scraping workflows through the visual canvas without writing a single line of code.

Handles JS-rendered content

Unlike simple HTTP scrapers, Flow's Puppeteer engine reliably extracts data from SPAs, infinite scroll pages, and login-gated content.

Workflow versioning

Users can save, fork, and compare different versions of their automation flows, enabling iterative refinement without fear of breaking working configurations.

SWOT Analysis

Strengths

  • Intuitive visual drag-and-drop interface
  • No-code barrier to entry
  • Handles dynamic content rendering

Weaknesses

  • Complex scrapers may still require custom code logic
  • Intensive DOM parsing can be resource-heavy

Opportunities

  • Expansion into enterprise automated testing workflows
  • AI-assisted node generation based on plain text commands

Threats

  • Changes in underlying browser architectures or anti-bot protections
  • Competitors with established, complex RPA solutions
Full Technical Documentation
GitHub