Online Code Editor

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.

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.

OpenCode.ai is an open-source AI coding agent that runs directly in your terminal, IDE, or desktop. It connects to 75+ LLM providers, supports offline use, and enables multi-session collaboration for code review and debugging.

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

Replit is a collaborative browser-based IDE with AI-powered tools for software development, real-time multiplayer editing and deployment, templates and tutorials, and hosting and monetization options.

Editor.do is a real‑time IDE, hosting, and SSL platform for static sites. It supports any language, drag‑and‑drop design, AI code assistance, instant deployment, daily NVMe backups, custom domains, unlimited traffic, and multi‑project management.

Cursor is an AI-powered code editor that utilizes natural language prompts for efficient coding. It streamlines workflows with features like predictive edits, one-click extensions, and privacy mode, enhancing developer productivity while maintaining a secure environment.

CodeWhizz is an AI-powered code generator and debugger for Python and JavaScript. It features an integrated code editor, tutoring support, and a snippet manager, catering to users from beginners to professionals for efficient coding and learning.

CodeCompanion scans entire codebases to locate relevant files, providing an integrated terminal, browser, and shell execution. It auto‑corrects console errors, supports semantic search and custom instructions, stores data locally, and runs on Mac and Windows.

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.

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.

Boxy is an AI coding assistant that enhances the coding experience, speeds up machine performance, provides useful features like code reviews, sandboxes and optimization, and helps bring ideas to code faster.

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

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.

Hackerman Text is a lightweight offline editor with zero‑latency AI completion from local or cloud models. It offers multi‑cursor editing, split views, detachable tabs, built‑in syntax highlighting, inline shell execution, Org‑mode, ripgrep search, and no telemetry or accounts.

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.

PAS Code is a lightweight online editor supporting over 10 programming languages. It features intelligent autofill, syntax highlighting, auto-compiling, cloud syncing, and integrated AI prompts, providing a versatile and efficient coding environment for developers.

GitWit is an open‑source, AI‑native browser IDE that supports syntax highlighting, auto‑completion, and real‑time collaboration. It integrates GitHub, embeds Next.js backend, offers secure sandboxing, AI code suggestions, and community live sessions for streamlined full‑stack 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.

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

Aider is an AI-powered pair programming tool that helps developers collaborate with LLMs for editing, refactoring, and debugging code within Git repositories. It supports multiple languages and integrates with IDEs and editors for real-time updates.

SpellBox is an AI coding assistant that generates, explains, and bookmarks code across languages like C++, Python, MATLAB, and JavaScript. It runs on Windows and macOS, available as a desktop app or VS Code extension, streamlining development workflows.

Pixelcode is a Chrome extension that extracts code from screenshots, images, PDFs, and video frames, recognizes over 30 programming languages, preserves formatting, and copies snippets directly to the clipboard for use in any editor.

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.

UNCODE‑IT lets you paste code into a web form, then GPT‑3 generates a concise plain‑language summary. Ideal for debugging, learning, and reviewing unfamiliar functions quickly. A Clear button resets the input for iterative analysis.

Windsurf is an AI coding tool that enhances developer workflows with features like Cascade for code understanding, real-time error detection, integrated IDE plugins, and collaboration tools, enabling efficient coding, debugging, and project management.

GitHub Next Project: Write code without the keyboard using voice commands with GitHub Copilot.

RoboCoder is a VS Code extension embedding GPT‑4 Turbo to generate code from natural‑language specs, letting developers open, edit, and manage files directly in the editor using a supplied OpenAI API key.

Codejet converts Figma design systems into production‑ready websites with one click. It offers a library of 100+ templates, AI‑generated responsive code, an integrated visual editor, and built‑in unit‑testing scaffolding for a seamless design‑to‑deployment workflow.

Trae is an adaptive AI-powered IDE that boosts coding efficiency through dynamic task allocation, real-time previews, multimodal understanding of images, tailored code generation, and smart autocompletion, enhancing developer collaboration and workflow.

Notepad is a versatile web‑based editor that handles Markdown, code, images, HTML, and PDFs in one interface, auto‑detecting file types and offering syntax‑highlighted execution, drag‑and‑drop design, photo editing, and PDF annotation for students, developers, and creators.

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.

CodeAI turns plain‑English app concepts into editable code for frameworks like Next.js, auto‑generating components, routing, and deployment scripts. It integrates with GitHub and offers one‑click hosting on Vercel, Netlify, and Supabase, plus a template library.

CodeAmigo is an AI-powered coding assistant that offers interactive tutorials in Python and JavaScript. It provides real-time feedback, allows progress tracking, and supports a hands-on approach to learning for both beginners and advanced users.

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.

CodeI is an AI code assistant that delivers ready‑to‑use snippets for multiple languages and frameworks, offers debugging support, explains error messages with examples, tracks query history for quick reference, and helps developers understand and improve code quality.

mypaste is an AI-powered code pasting tool for Github users. Upload pastes seamlessly from your terminal with CLI convenience. Customize expiration policies and programming languages for flexible and efficient workflow.

Code Screenshot allows developers to convert code snippets into visually appealing images with syntax highlighting for various languages. It features customizable themes, keyboard shortcuts for efficiency, and local storage for enhanced privacy in sensitive projects.

JetCode is an AI-powered tool that converts system requirements into executable code instantly, streamlining software development. It enhances productivity, reduces debugging, and supports various platforms with step-by-step implementation guides for efficient project execution.

CodeGPT plugs into VS Code and JetBrains IDEs, offering AI‑driven coding, refactoring, and debugging. It scans entire codebases, produces implementation plans, suggests incremental edits, and supports multiple models while keeping data local with BYOK and threat‑detection safeguards.

Otto Engineer is an AI-powered coding assistant for testing and iterating code. It offers a user-friendly setup, interactive chat interface, and enables real-time code execution, debugging, and testing in a secure browser environment.

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.

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

XAML.io is a web-based tool for generating and editing XAML code, offering syntax highlighting, real-time error checking, and drag-and-drop UI design. It facilitates collaboration and integrates with various development environments to enhance productivity.

CodeMate AI is a VS Code plugin that translates natural‑language prompts into code, providing pull‑request reviews, bug and security analysis, refactoring, debugging, optimization, and documentation generation. It supports GitHub, Bitbucket, GitLab, Azure DevOps, and runs locally for secure, scalabl

MarsX is an open‑source web IDE that blends AI, NoCode, and full‑stack coding. It supplies a micro‑app library for marketplaces, social networks, NFTs, streaming, and photo sharing, enabling rapid app assembly with minimal code, Git control, and GDPR‑compliant data ownership.

Smart Online Notepad is a flexible writing tool that offers AI grammar correction, tone adjustment, real-time word counting, and easy note sharing. It supports multiple languages and has a user-friendly design with dark and light modes.

AI Code Converter translates code snippets and natural‑language instructions into 50+ programming languages, offers code generation, debugging, optimization, and detailed explanations, and provides web and CLI interfaces for seamless IDE or pipeline integration.

This AI tool is a free online writing assistant with advanced features to enhance writing skills and prevent plagiarism.

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.