Faster marking, consistent standards, across your whole school
Give every teacher back their weekends while keeping assessment consistent and defensible — with the controls admins need.
Consistency across teachers
Every class marked against the same criteria, reducing drift and moderation overhead.
Visibility for leaders
Understand how cohorts are performing against your rubrics, not just raw grades.
Privacy-first by design
Student work is encrypted and never used to train third-party foundation models.
Real onboarding and support
Training for staff and a human to talk to during rollout and beyond.
Rolling out across a whole school?
CoMarker helps departments mark faster while keeping standards consistent — with the controls admins need.
- Consistent marking across every teacher and class
- Shared rubrics and moderation to keep standards aligned
- Admin controls, teacher seats, and simple onboarding
- Procurement-friendly invoicing and a real human to talk to
Student data stays protected
Encrypted in transit and at rest
Essays and rubrics are protected with industry-standard encryption.
Never used to train public models
Student work is not sold or used to train third-party foundation models.
Clear retention and deletion
You control how long work is stored and can delete it on request.
What teachers say
Real quotes from real teachers will appear here.
“[TESTIMONIAL PLACEHOLDER]”
“[TESTIMONIAL PLACEHOLDER]”
“[TESTIMONIAL PLACEHOLDER]”
“[TESTIMONIAL PLACEHOLDER]”
“[TESTIMONIAL PLACEHOLDER]”
“[TESTIMONIAL PLACEHOLDER]”
“[TESTIMONIAL PLACEHOLDER]”
“[TESTIMONIAL PLACEHOLDER]”
Mark your next class in minutes.
Start free — no credit card. See sentence-level feedback on your own essays today.