Code Editors: best apps and software

Lightly

Lightly is a cloud IDE that offers coding, databases, deployment, and hosting, accessible on iPad, desktop, or browser.

Kotlin Playground

Edit, run and share Kotlin code in a web browser. Supports Compose Multiplatform web UI preview, multi-module projects, and Kotlin/JS and Wasm interop without local setup.

Posit Cloud

Cloud-based environment to create, run, share, and deploy R and Python data products (R Markdown, Shiny, Plumber, static sites) with access control, scheduling, and resource management.

Lotas

Lotas builds Erdos, a secure AI-native IDE for data science. Its first product, Rao, is an AI coding assistant for RStudio that reads, writes, and edits R code with project context.

Mcpcore

A platform for building and managing MCP servers with a browser IDE, real-time analytics, session logs, and access control via Public, API Key, OAuth 2.0, or Bearer Token.

NeoBuild

NeoBuild enables users to design, prototype, and deploy full-stack applications from ideas using a single workflow.

JS Bin

JS Bin is an online tool for developers to write, test, and share HTML, CSS, and JavaScript code snippets with real-time previews and collaboration features.

Trinket

Trinket is an online platform that allows users to write, run, and share code in multiple programming languages through a web browser on any device.

Ideone

Ideone is a free online IDE and compiler that allows users to write, run, and debug code in over 40 programming languages without local installations.

MERN.AI

MERN.AI is an IDE for web app development using the MERN stack, featuring a code editor, templates, and AI tools for efficient app creation and management.

Mixcode

Mixcode offers embeddable widgets for websites and social media, enabling users to integrate interactive video, chat, and help center features.

OnlinePHP.io

OnlinePHP.io is a web-based tool for writing, testing, and debugging PHP code directly in the browser without local setup.

Veryfront

Veryfront is a browser-based app for coding with React and Tailwind, allowing users to use templates, components, and deploy or export their projects instantly.

Code Jabba

Job board for software engineers that finds roles matching your specific skills and salary preferences in seconds.

PHP Playground

PHP Playground allows you to run PHP code in real time from your browser, share URLs, and test scripts without local setup.

Lovelace

Browser-based AI IDE that provides code completion, generation, an AI agent, and cloud workspaces so developers can edit, review, debug, and prototype code from any device.

Sphere Engine

Sphere Engine is a platform for coding assessments and online development, allowing users to execute code, test algorithms, and manage programming tasks across multiple languages.

Go Code Studio

Go Code Studio is an online web design platform that assists users in creating and delivering high-quality websites efficiently.

Val Town

Val Town is a web platform for developing, running, and deploying server-side JavaScript applications with features like AI-assisted coding and a secure execution environment.

Cliprun

Cliprun is a web app for running Python code online with no setup. It supports file uploads, popular libraries, and integration with AI platforms.

TryOCaml

TryOCaml is an interactive web platform that allows users to write and execute OCaml code, facilitating learning and exploration of the OCaml programming language.

Codeshare

Codeshare is a real-time collaboration app for developers to share, edit, and execute code together, enhancing coding productivity and communication.

CodeShare

CodeShare is a collaborative code sharing app for web developers, enabling real-time editing, live execution, and chat for up to 10 users during projects and interviews.

WPCursor

Web-based AI tool that generates and edits WordPress code from conversation, creating themes, plugins, widgets, ACF fields, WooCommerce stores and live previews for developers.

Codeshare

An app for publishing your code—games, programs, products, and software—on an open marketplace where you can offer it for free or for sale.

Nao

Nao is an AI-powered IDE that connects to your data warehouse to write and test SQL, Python, and dbt workflows, preview schema-aware changes, catch issues, and deploy pipelines securely.

엘리스 ELICE

ELICE is an educational platform for coding and software development offering courses, a cloud code editor, coding challenges, project-based learning, and assessments for learners and teachers.

Codebrae

Tool that uses AI to help anyone create simple, useful micro-apps in minutes through guided steps.

Kvery

Kvery is an advanced SQL editor that simplifies database management with tools for coding, optimization, scheduling, and collaboration.

Code Vibrant

Code Vibrant is a web development service that helps users create websites and mobile apps tailored to their business needs in Nepal and Australia.

Arc Studio

Arc Studio creates and tests smart contracts, deploys them to supported testnets, and builds web apps with live previews and blockchain data inspection.

Avenlo

A cloud notebook app with an AI agent that inspects files, writes and runs Python code, and explains data analysis and machine learning work.