CodePen
blog.codepen.ioWrite HTML, CSS, and JavaScript in a browser editor with an updating preview.
Write HTML, CSS, and JavaScript in a browser editor with an updating preview.
Store notes and files in an encrypted notebook that syncs across devices.
A Python and R IDE that pairs script and notebook editing with live data exploration tools.
A no-code app builder for designing, building, and publishing iOS, Android, and web apps.
Write analytical reports with SQL, Markdown and components in a code repository.
Data governance that builds a deterministic knowledge graph from code and data
Define structured messages in `.proto` files and generate language-specific serialization code.
Automate unit and regression testing for embedded C/C++ software, from test design to target execution and coverage analysis.
Compile suitable Python numerical functions to machine code when they are first called.
Format source files with a consistent, opinionated printer that supports common web and configuration languages.
Provision infrastructure from version-controlled configuration with a plan-before-apply command-line workflow.
Low-code platform for building internal tools, admin panels and dashboards on your data.
Microsoft design resources across web and native platforms
Build interface prototypes with code-backed components
Define metrics as code and explore them through dashboards or natural-language analysis.
A shared Norwegian UI toolkit that can use your own theme
AI browser extension for code validation, optimization, translation, and documentation.
Build event-driven serverless applications with triggers, bindings, and several hosting plans.
Build and extend compilers with modular libraries, intermediate-representation tools, and code-generation components.
A mobile code editor for editing web and source files, previewing pages and using terminal or remote-file tools.
Configurable Material-style file and folder icons for VS Code.
Edit plain-text and source files on macOS with syntax highlighting, encoding tools, scripting, and regex search.
Navigate, build, run, and debug multi-language projects in KDE's cross-platform IDE.
A C and C++ IDE that connects project editing to your compilers, build system, debugger, and tests.