A free Treejack alternative, no sign-up to build
Paste your navigation, set your tasks and preview the test without an account. Sign in only when you want to share it and collect responses.
Build a tree testWhat it looks like
Screenshots of the free tools, using the built-in example data.

Side by side
Optimal Workshop details from optimalworkshop.com/pricing and /treejack, checked 19 October 2026. Plans change, so check their site. Treejack is a product of Optimal Workshop; we are not affiliated.
What you get here
"I'm not sure"
People can skip a task. It's reported separately.
Direct and indirect
Success and failure, split by how they got there.
Several right answers
Up to 10 correct destinations per task.
Compare two studies
Set a task against the same one in another study.
Frequently asked questions
Do I need an account to build a tree test?
No. You can build a tree test, preview it as a participant and download your results without signing up. You only sign in (free, by email link) when you want to share the study with participants or save your work.
How do I get my navigation into the tool?
Type it in level by level, or paste an indented outline and the tool turns it into a tree. Trees can go up to five levels deep.
Can a task have more than one correct answer?
Yes. Tick every destination that counts as correct, up to 10 per task. An answer is right if it matches any of them.
What do the results show?
Success rate and directness for each task, split into direct and indirect successes and failures, plus a pietree showing where people went. Anyone who chose "I'm not sure" is reported separately. You can compare a task across two of your studies, download the responses as a CSV or save the results as a PDF report.
Can I stop a study automatically?
Yes. Set a response limit, a close date, or both, and the study stops taking responses on its own. You can also close it by hand at any time.
Is this made by Optimal Workshop?
No. Treejack is an Optimal Workshop product. This is a separate tool built by UX Academy and we are not affiliated with them.