Code Practice Exercises

Codemia is an interactive learning platform for engineers, offering 120+ system‑design challenges, 200+ visualized data‑structure problems, 20 UML‑based OOP exercises, live mock interview sessions, and AI analytics to pinpoint improvement areas.

Coddy.Tech offers free interactive coding lessons across many languages and AI prompt engineering, featuring an in‑browser editor, streak tracking, achievements, AI debugging, a community leaderboard, and certificates for LinkedIn. It runs on iOS, Android, and web.

Practice PTE AI Scorings is an AI-driven platform for PTE test takers, offering comprehensive practice for speaking and writing tasks with accurate evaluation. Access study materials, detailed score reports, and performance improvement tips.

StableCode is an innovative LLM-powered AI tool for coding assistance and learning. It enhances programmer productivity while serving as a resourceful teaching aid for beginners.

CasperPractice delivers an online platform for CASPer test preparation with unlimited practice questions and full‑length timed tests aligned to the 2025 format. AI evaluates responses, gives paragraph‑level feedback, quartile assessment, and stores video transcripts for review, for pre‑health studen

Claude Code is an AI-powered coding assistant that operates within the terminal, automating tasks like editing files, fixing bugs, executing tests, and managing git workflows. It enhances developer productivity through natural language commands and real-time support.

DET Practice is a preparation tool for the Duolingo English Test, featuring over 18,000 questions, full-length mock tests, AI-driven writing and speaking feedback, and comprehensive courses to improve essential language skills and test performance.

AI tool that automatically builds custom language workbooks in 23 languages, matching user proficiency (A1‑C2) and chosen topics. It generates varied exercises—fill‑ins, multiple choice, translation, emoji vocab, and more—exported as printable PDFs for offline or online use.

GitHub Copilot is an AI pair programmer that uses the OpenAI Codex to suggest code and entire functions in real-time.

LabEx delivers free, interactive labs for Linux, DevOps, and cybersecurity, organized into skill‑tree pathways. AI assistant Labby aids debugging, while online terminals and real‑world projects cover Docker, Kubernetes, Python, Java, Ansible, and more.

CodeAssist is an AI-powered IntelliJ IDE plugin that generates code and answers programming-related questions.

The CodeGPT IntelliJ IDE Plugin is an AI-driven coding tool that offers text completion, chat functionality, custom prompts and code actions, reviewing past conversations, restoring previous sessions, and privacy settings.

TOEFL Practice offers over 50 realistic practice tests covering all exam sections. Users receive immediate AI feedback on writing and speaking, track progress through analytics, and enhance vocabulary and fluency for improved TOEFL performance.

ReadTheory offers adaptive reading comprehension exercises for K‑12 and ESL learners, with instant grading and teacher dashboards that deliver real‑time performance data, classroom competitions, and ready‑made resources for lesson planning.

UltraCode AI is a coding interview co-pilot that helps users prepare for technical and behavioral questions through audio and screen input, offering hints for problem-solving while ensuring privacy and compatibility with various coding environments.

CodingFleet is a comprehensive AI-powered coding suite designed to streamline programming workflows. It offers tools like code generation, real-time assistance, code explanation, enhancement, conversion, and automated testing, all supported by an interactive chat feature for continuous guidance.

CodeAid is a coding assessment platform offering various challenges and automated grading. It allows organizations to customize tests, ensures data privacy, and provides detailed analytics to support informed hiring decisions and skills development.

OpenAI Codex CLI is a terminal-based, open-source coding agent that uses natural language to automate development tasks like code generation, testing, refactoring, and codebase understanding, with secure sandboxed execution and Git integration.

Trae is an AI‑assisted coding extension for VSCode and JetBrains IDEs that offers real‑time code completion, comment‑to‑code generation, automated unit test creation, bug fixing, code explanations, documentation, and context‑aware Q&A across 100+ languages.

JDoodle is a free online coding platform supporting over 100 programming languages. It offers features like live coding sessions, smart code suggestions, debugging tools, and LMS integration, enhancing the coding experience for developers, educators, and students.

Use of English AI offers unlimited Cambridge English practice across B1‑C2 levels, generating exercises from 15,000+ official items. It delivers detailed feedback, instant scoring, tailored improvement tips, and teacher‑friendly content.

Revision Dojo is an exam preparation tool for International Baccalaureate students, featuring expert textbooks, a question bank, instant AI grading, and interactive learning modes like flashcards and quizzes, along with personalized support from its AI study partner, Jojo.

Blackbox AI is an AI-powered tool for developers that searches and autocompletes code snippets across multiple programming languages and repositories, extracts code from videos and PDFs, and converts queries into code.

PseudoEditor is a web‑based pseudocode IDE with syntax highlighting, error detection, auto‑completion, and instant compilation. Cloud‑stored projects are accessible from any device. It supports AQA, OCR, CIE, Edexcel, and IB specifications, helping students and teachers practice algorithms.

Interview Monkey is an AI tool that helps candidates prepare for technical software engineering interviews through real-time problem-solving for coding, system design, and object-oriented programming, featuring access to over 500 LeetCode questions and support for ten programming languages.

CleverExams CELPIP Practice Mock Exams offers realistic mock tests, instant scoring, and AI-powered feedback on writing and speaking. It tracks progress and allows for flexible, device-accessible preparation tailored to various proficiency levels.

commandcode.ai is a developer-centric CLI tool for interacting with multiple large language models, managing sessions with sliding-window memory, and automating long-running AI workflows. It supports model switching, vision tasks, background shell operations, and persisted, resumeable sessions for r

Augment Code is an AI coding assistant designed for professional engineers working with large codebases, offering real-time, context-aware suggestions and maintaining coding style consistency. It integrates seamlessly with popular IDEs like VSCode and JetBrains while ensuring compliance with SOC 2 T

Penseum is an AI study partner that creates custom study guides, flashcards, and practice questions from your materials. It offers AI tutoring, study roadmaps, and community support for effective learning.

CaseStudyPrep AI delivers structured interview practice with real‑time coaching, offering mock consulting case sessions and AI‑generated performance reports. Users can reset or replay sessions, and the platform supports individuals, universities, and enterprises with unlimited case libraries and tea

StudyX is an AI‑powered platform that converts lecture recordings, PDFs, and videos into organized notes, generates spaced‑repetition flashcards, creates custom quizzes from uploaded content, and supports text, image, PDF, and YouTube inputs across web, Discord, and a browser extension.

Cognito is a structured revision platform for KS3, GCSE, and A‑level students, offering video lessons, written notes, interactive quizzes, customizable flashcards, and exam‑style questions, accessible to individuals, schools, and teachers.

Interview Coder is an AI tool designed for technical interview preparation, providing real-time coding solutions, debugging support, and performance optimization. It enhances user experience with easy navigation and detailed guidance, aiding both novice and experienced programmers.

AI Studio converts natural‑language prompts into working code across C++, Python, JavaScript, SQL, CSS, HTML, and regex. It translates snippets, adds typing hints, estimates complexity, offers git/command lookup, and provides plain‑English explanations, supporting collaboration and quick prototyping

CodeStack AI is an interactive learning platform for coding practice. With instant feedback and AI assistance, it improves problem-solving abilities, benefiting programmers and developers seeking skill enhancement.

Codeconvert AI is an AI-powered tool that automates code conversion across over 25 programming languages, eliminating the need for manual conversion. It supports a wide range of programming languages and is user-friendly.

AI‑driven tool offers the full set of 100 U.S. naturalization practice questions. Users can take 10‑question simulations, receive instant GPT‑based scoring and feedback, track progress, and practice in multiple languages.

Learn Copywriting is an interactive platform for improving copywriting skills through daily writing tasks, real-time feedback, and a structured environment. Users can track progress, store submissions in a portfolio, and draw inspiration from industry insights.

CodePal is an AI chat assistant delivering instant code suggestions, snippets, and project templates for developers. It covers tasks like web page recreation, password generation, GPT‑2 fine‑tuning, and ESP32 control. It integrates with workflows, highlights community projects, and provides a newsle

Cratecode offers project‑based programming courses with non‑linear pathways and measurable milestones. An AI assistant reviews code, flags errors, and provides detailed explanations and step‑by‑step guidance, supporting beginners, students, and hobbyists.

Praktika is an AI‑powered language learning platform that delivers native‑language instruction, personalized study plans, and real‑time feedback on pronunciation and grammar. It adapts exercises to user goals, tracks progress, and supports free‑form conversations in a judgment‑free environment.

Codiga is a static code analysis platform that detects real‑time violations and security issues across multiple languages. It offers OWASP, MITRE, and SANS‑CWE rule libraries, a custom rule editor, IDE integration, automated PR reviews, auto‑fix, and a metrics dashboard.

MESSA delivers structured MUN training with interactive POI exercises at three difficulty levels, speech‑making modules for drafting and rehearsal, progress tracking, personalized improvement tips, and collaborative peer‑review features for flexible, self‑paced study.

StudentAI consolidates academic tools: auto‑generates practice tests, quizzes from PDFs, drafts papers with citations, summarizes documents, converts YouTube lectures to timestamped notes, offers mock interviews, APA referencing, 24/7 AI tutors across subjects, study planning, flashcards, and group

Qoder is an agentic coding platform that automates software development through autonomous AI agents. It enables conversation-based programming, task delegation, and provides deep codebase insights for streamlined development.

CodeRabbit automates pull‑request reviews with AI, detecting bugs instantly and suggesting fixes. It integrates with Git, IDEs, and CLI, delivers diff summaries, diagrams, and a chat interface, all while preserving privacy with encryption and zero‑data retention.

Learn AI, ML, and data science through free tutorials, live coding playgrounds, and 100+ hands‑on projects. The curriculum covers core machine learning, regression, and deep learning, with specialized projects and a 3,958‑question quiz to reinforce knowledge.

Course Hero provides AI-enhanced homework aid featuring expert solutions, comprehensive study resources, and in-depth step-by-step explanations. Its one-click tutor assistance and enriched learning materials boost academic performance.

iPrep.Ai offers structured mock interviews for technical and behavioral scenarios, featuring real‑time coding challenges, instant code feedback, session recordings, detailed analytics, and personalized improvement plans for software developers at all skill levels.

GeekBuzz is an interactive platform that enhances coding skills through gamified learning, offering coding practice, topic-wise quizzes on data structures and algorithms, competitive coding duels, and personalized problem sets in a supportive community environment.