Exercism
exercism.orgLanguage practice with exercises and mentoring
Language practice with exercises and mentoring
Browser-based live coding of musical patterns
Build custom apps with AI and edit them with no code.
AI interview copilot for coding, system design and behavioral rounds
A roadmap linking data structures with solved coding challenges
Pattern-based live coding for algorithmic music
Jupyter-native AI agent that writes, runs, and debugs Python in notebooks.
A collection of games teaching web-development concepts
Podcast research for guest pitches and partnerships
Research trading decisions with reinforcement-learning experiments
Recruit and manage participants for user research
Check the holdings and exposures hidden behind ETF names
Collect notes, web research, tasks, and reference material in a searchable workspace.
Query a scholarly research graph of works, authors, sources, institutions, and related entities over a REST API.
Native macOS context engineering and agent orchestration app
Process keyword lists in bulk and connect search research with ongoing visibility monitoring.
Research SEO content briefs and produce drafts with a configurable in-house writing platform.
Compare search interest across time, places and related topics before planning search content.
Build content briefs and topic clusters from search-result and AI-answer research.