GCSE tools
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GCSE · OCR J277
OCR Exam Reference Language
A complete interactive environment for OCR's Exam Reference Language (ERL). Work through modules, run ERL code, take quizzes and tackle exam-style tracing and debugging questions.
Open ERL Environment →🧭
GCSE · OCR J277
CodeQuest Pseudocode Tutor
An interactive OCR-style pseudocode tutor built around exam-skills missions. Work through guided modules, write and run pseudocode, and earn XP and badges as you build exam confidence.
Open CodeQuest →🧪
GCSE · OCR J277
ERL Playground
A free-form space to write and run OCR Exam Reference Language. No modules or exercises — just an editor for testing out your own code and checking it does what you expect.
Open ERL Playground ↗