Hoverfly
hoverfly.ioA proxy-based API simulator that records traffic for repeatable tests without calling the real service each time.
A proxy-based API simulator that records traffic for repeatable tests without calling the real service each time.
Build event-driven market simulations with a shared strategy engine
Use desktop chart studies with explicit exchange-data options
Historical-fiction reviews and an open membership community
GPU fire and smoke simulation with sprite-sheet and volume exports
Write load-test scenarios as code and control the request rate sent to an application.
Replay historical markets across charts and depth-of-market views
Liquid simulation with detailed meshing controls and animated geometry exports
Model-based end-to-end test automation for enterprise applications and business workflows.
Learn chart and order workflows with a separate paper-trading mode
Pattern-based 3D garments and cloth simulation
Solana protocol explorer with a free transaction-message simulator
Experience management platform that turns human understanding into decisions.
Geometry and mathematical exploration with constructed figures
Simulate systematic portfolios with detailed trade and risk reports
Compare market-structure measurements with their historical outcomes
Explore crypto derivatives and purchase selected historical datasets
Historical images with context, free downloads and detailed rights labels
Curated historical images and films selected for free reuse
Historical pictures with use-specific licences and custom scans
Historical and cinema pictures, archive collections and vintage mood boards
Measurement conversion including historical and cooking units
Historical-image search with free and paid download options