Magic: The Gathering card search using Scryfall query syntax - matching cards with full details

HTTP health check for any URL - up or down, status code, latency, redirects and server header

Medical device event reports - FDA MAUDE malfunction, injury and death counts with top manufacturers and brands for any device type

Latest runtime versions - current stable and LTS release of Node.js, Python, Go, Java, Ruby, PHP, .NET, Rust and databases with supported cycles

Aspect ratio calculator - reduce width and height to a ratio and orientation

SEC Form 4 insider trades by ticker - owner, title, transaction type, shares and price

Swiss public transport station board - next departures with line, destination, platform and delay for any station (opendata.ch)

Recent preprint search on the Open Science Framework - title, abstract, DOI and link across PsyArXiv, SocArXiv and other servers

FDA food recall search (openFDA) - product, reason, firm, classification and status

Class action lawsuit search via CourtListener - case name, court, date and citation

Crop-to-cover calculator - cover scale, scaled size and centered crop overflow for a target box

Procurement reorder point calculator - safety stock, inventory position and reorder-now flag from demand and lead time

US Treasury yield curve - 1 month to 30 year yields with 1d, 1w, 1m and 1y changes in basis points, 2s10s spread and inversion flag

Consumer product recall check - search CPSC recalls by product or brand for hazards, remedies, manufacturers and units affected

FDA medical device recall search (openFDA) - product, reason, firm, classification and status

UN Sustainable Development Goal indicators for a country - latest values and trends

Manufacturing takt time and hourly capacity from available minutes and demand

FDA drug recall search (openFDA) - product, reason, firm, classification and status

Regex tester - matches, capture groups and named groups for a JavaScript pattern against text

Check a domain against the MetaMask phishing blocklist and allowlist and flag one-letter lookalikes of popular crypto sites, with the matched entry