Built for educators who care about writing
Purple Crayon helps instructors, TAs, and program leads give rich, rubric-based feedback without spending every evening buried under essays.
Our mission
Writing is one of the hardest skills to teach well at scale. We started Purple Crayon to help educators stay focused on ideas, structure, and growth – not just red-pen corrections.
By pairing AI with the rubrics you already use, we make it faster to respond to student work while still keeping you in control of grading decisions.
Whether you’re teaching one class or coordinating an entire program, Purple Crayon is built to meet you where you are.
Who we serve
-
1
Classroom instructors
Quickly turn drafts into actionable feedback without reinventing your rubric.
-
2
Teaching assistants
Stay aligned with instructors and keep feedback consistent across sections.
-
3
Program coordinators
Pilot new writing assignments and compare how different cohorts are doing.