Testing practice, duck first
Practice testing on apps that are broken on purpose
SpaceDucking hosts small, realistic apps with real bugs paddling about under the surface. Explore them, find the defects, then log every quack-up in our bug database and see what everyone else caught.
No account needed to have a paddle. Join to log bugs and upvote findings.
How SpaceDucking works
Three steps, no waddling about. Our Bugs will keep you company.
Pick a mini app
Each one imitates a real business: a shop, a fitness tracker, a bank. Same flows, more ducks.
Hunt the bugs
Every app is seeded with deliberate defects — broken maths, sloppy validation, layouts that go belly up.
Write it up
Sign in and file a proper report with steps, expected and actual. Then compare quacks with everyone else.
Featured tool
Duck Data Generator
Generate tricky test data right in your browser: valid and invalid emails, UK postcodes, boundary numbers, unicode strings, and dates that misbehave. Choose simple, medium, or complex batches, pick a focused preset, or spin the ducky wheel for a random edge case with a quack fact.