Perturbation Workbench

Runs entirely in your browser. Nothing is uploaded, and no model is called.

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Write a question

Paste or type the question you want to make resistant. Code goes in a fenced block.

Open an assignment

Drop a PDF and the questions are split out for you. Any CS assignment — the numbering convention is worked out from the document.

Drop a PDF here or

Your file never leaves this machine — there is no server to send it to.