Whitespace.
See who already built your idea — and the space they left open.

CLUSTER CODING-WEB-PRACTICE · 10 ENTRIES · EARLIEST ENTRY 2026-09-28

AI coding practice mentors

This cluster comprises web apps that pair coding practice with AI mentoring, interactive exercises, and progress dashboards for interview preparation and learning. The dated history is too thin to read a shape from—only 3 dated entries exist before the index start, so the cluster's dated history predates the index or its members are undated. Traction leaders are devos-nexus (3 stars), followed by leetcode-tutor and openvibe (1 star each).

Entry timeline

ENTRY TIMELINE

APR 2026: 1JUL 2026: 2AUG 2026: 3SEP 2026: 2OCT 2026: 2
APR 2026OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 4 ai-built · 6 unlabelled

Operator · 7 hobby · 3 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 10 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01devos-nexus3★8 dayslivehobbyFull-stack coding analytics platform that tracks sessions, measures performance, and provides AI coaching for developers.
  2. 02DSA_Forge0★10 daysliveWeb platform offering coding practice problems, an AI interview readiness coach, and university coding assessments with automated grading and analytics.
  3. 03openvibe1★1 moliveai-builthobbyEducational web app that curates open-source projects and provides learning paths for people learning to code with AI.
  4. 04CodeMentorAI3★2 mo—ai-builthobbyAI app that helps people learn to code by answering questions and providing mentorship.
  5. 05codementor-ai0★17 days—Coding practice web app with an AI mentor, code studio, notes, and progress tracking for learners.
  6. 06idea-coding0★11 daysliveai-builthobbyWeb app and Codex skill that recommends coding projects and starter prompts to help AI-coding beginners.
  7. 07codevault0★10 dayslivehobbyWeb app that tracks coding practice submissions across platforms and provides AI mentoring and progress dashboards for interview preparation.
  8. 08vibe-shelf0★13 days—ai-builthobbyApp that converts AI-generated coding projects into interactive learning books with margin notes and text-selection questions.
  9. 09mr-review-trainer1★1 mo—hobbyTraining web app that helps developer teams practice code review through AI-generated merge request scenarios and detailed evaluation reports.
  10. 10Kodigo0★unknownliveAI study buddy web app that helps students learn coding through interactive exercises and personalized feedback.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.