800 schools and 1,700 teachers use Codle every day.
Lesson prep through evaluation — all in one place.
schools where class begins every day.
Codle runs in classrooms across 800 schools in Korea right now. From a teacher's first Monday-morning login to the last feedback of the week.
Connecting every moment of class.
Three steps from prep to evaluation. Design a teacher's full week.
Organize even sprawling materials cleanly.
Compose materials at any unit — from a single class to a full semester. Bundle and order them by topic for systematic management.
Catch the important signals fast — mid-class.
At-a-glance summaries surface only the signals that matter during class. Even with lots of information, you can scan it quickly and respond on the spot.
From writing prompts to auto-grading — easy.
When you create written-response questions, AI generates rubrics and exemplars. Once students submit, Codle auto-grades and returns appropriate feedback.
Subject, grade, format — anything.
Worksheets, assessments, and inquiry projects across 12 subject areas and 6 grade levels (elementary, middle, high). Pull from the library or ask AI to make a new one.
Teachers in the field tell us.
1,700 teachers across 800 schools in Korea run their classes on Codle every day. Hear how their classrooms have changed in a year.
The nights I spent grading now go to seeing each student. In a year, the way I teach has completely changed.
I used to find out late who was falling behind. Now I see the moment they get stuck.
Two or three weekend hours per unit prep is now 30 minutes. That much more time to see students.
Students started managing their own pacing. The autonomy I'm seeing surprises even me.
I used to lean on multiple choice because written-response felt heavy. Now I can vary how I assess.
Family newsletters were my biggest workload. Now drafts come automatically and I just review.
Even in English class, vocabulary level differs by student. Codle adapts on its own — no extra prep.
Last semester, my interview notes for struggling students were scattered. Now a student's whole semester fits on one screen.
I expected to vet AI-generated materials carefully, but the output was clean enough that I trusted it quickly.