
Data Creator
Mockaroo
DUMMY DATABASE
Random Data Monster
Dummy File Generator
RANDOM.ORG
Wheel of Names
Random Data
ThreadMine.dev
ThreadMine analyzes Java/JVM thread dumps in seconds. Upload or paste a dump (no signup, up to 10 MB) and get automatic detection of deadlocks, thread leaks, pool exhaustion, CPU hotspots and virtual thread pinning (Project Loom), plus a health score and a shareable report.
Parses HotSpot, OpenJ9, Zing and GraalVM. Paid plans add an AI assistant that explains the root cause and suggests a fix, multi-dump comparison/timeline, history, integrations and an API. A free, no-login web analyzer is the entry point โ the same low-friction flow as fastThread.io or jstack.review, but with automatic problem detection and AI on top.
Privacy: no account, TLS + AES-256, temporary dumps, zero AI-data retention.
Data Creator
ThreadMine.devMockaroo - A realistic data generator to test your app
DUMMY DATABASE - Generate and manage synthetic datasets easily with DUMMY DATABASE
Random Data Monster - Random Data Monster is a comprehensive suite of advanced random data generation that features generating secure passwords, names, numbers and more than 30+ Google Sheets custom functions to generate random data.
Dummy File Generator - Free dummy file generator for developers and testers. Create custom files instantly.
RANDOM.ORG - RANDOM.ORG offers true random numbers to anyone on the Internet.
Wheel of Names - Free and easy to use spinner. Used by teachers and for raffles. Enter names, spin wheel to pick a random winner. Customize look and feel, save and share wheels.