40+ Free Data Collection Tools I Built — Organized by Category
Published: (March 18, 2026 at 08:47 AM EDT)
2 min read
Source: Dev.to
Source: Dev.to
Social Media (8 tools)
- Reddit Scraper — JSON API, 20+ fields, comment trees
- YouTube Comments — Innertube API, no quota
- YouTube Channel — subs, videos, metadata
- YouTube Search — search results with views
- Bluesky Scraper — AT Protocol profiles/posts
- Bluesky Feed Monitor — engagement analytics
- Bluesky Hashtag Tracker — trending topics
- Hacker News — Firebase + Algolia APIs
SEO Suite (9 tools)
- SEO Audit — 50+ factors, score 0‑100
- Broken Links Checker
- PageSpeed Insights — Lighthouse
- SSL Certificate Checker
- HTTP Headers — security score
- Tech Stack Detector — 80+ techs
- Sitemap Parser
- Robots.txt Analyzer
- Keyword Density
Developer Tools (7 tools)
- Stack Overflow
- GitHub Trending
- GitHub Profile
- arXiv Papers
- npm Packages
- Wikipedia
- Open Library
Utilities (10+ tools)
- WHOIS Lookup
- IP Geolocation
- Exchange Rates
- Weather
- Crypto Prices
- RSS Parser
- URL Expander
- Email Validator
- Uptime Checker
- Social Profile
Reviews & Intelligence (4 tools)
- Trustpilot
- Amazon Reviews
- Glassdoor
- Market Research Data Collector
All tools are free on the Apify Store — search knotless_cadence.