colab.research.google.com
Google notebook environment for running Python code, experiments, data analysis, and research workflows.
Directory
IDEs & Code Editors
IDEs and code editors covers the programs developers write and run code in. Listings include desktop editors, browser notebooks, mobile code apps, and plugins that add language support or formatting. Startup speed, extension support, and how much each one assumes about your setup matter, since a lightweight editor you configure yourself feels very different from a full environment with debugging and version control built in. Extensions often come from the community, so check who publishes one and what permissions it asks for before you install it. Some entries are editors for a single language and others try to cover many.
visualstudio.microsoft.com
Notebooks.azure is a developer resource for coding, documentation, communities, security research, or software tools.
shell.cloud.google.com
Shell Cloud is a developer resource for coding, documentation, communities, security research, or software tools.
play.google.com
Spck Editor helps developers write, search, review, test, or manage code and projects.
github.com
github-vscode-icons is a GitHub repository or organization with source code, releases, documentation, or project resources.
jupyter-server.readthedocs.io
Jupyter Server provides developer documentation, references, tutorials, or learning resources.
acode.app
Acode helps developers write, search, review, test, or manage code and projects.
code.html.zone
Beauty Codes helps developers write, search, review, test, or manage code and projects.
code-projects.org
Code Projects helps developers write, search, review, test, or manage code and projects.
codebeautify.org
codebeautify helps developers write, search, review, test, or manage code and projects.
codeimage.dev
CodeImage helps developers write, search, review, test, or manage code and projects.
codepen.io
Online code playground for testing HTML, CSS, and JavaScript snippets in the browser.
pad.new
CoderPad helps developers write, search, review, test, or manage code and projects.
codesandbox.io
CodeSandbox is a cloud development platform that enables developers to code, collaborate and ship projects of any size from any device. Following its merger with Together AI, it offers the CodeSandbox SDK for programmatically creating isolated sandboxes for instant code execution in AI agents and code playgrounds. The platform provides secure, scalable environments with features such as quick start, auto-resume and customizable hibernation.
compiler-explorer.com
Compiler Explorer helps developers write, search, review, test, or manage code and projects.
cudatext.github.io
CudaText is a cross-platform text editor written in Object Pascal. It is an open source project that can be used free of charge, including for business. It offers syntax highlighting for over 300 lexers, code tree, code folding, multi-carets, regular expression find and replace, tabbed UI, and split views, and is extensible through Python add-ons.
decompiler.com
An online decompiler that accepts uploaded artifacts and converts them back to source code or extracted resources. It supports Java class and archive files, Python bytecode, .NET assemblies, Android packages and Flash files, among other formats.
editorconfig.org
EditorConfig is a file format and a collection of text editor plugins for keeping coding styles consistent across different editors and IDEs. An .editorconfig file defines style rules that plugins read and apply.
haystackeditor.com
HaystackEditor helps developers write, search, review, test, or manage code and projects.
ideone.com
Ideone is an online compiler and debugging tool that allows compiling and running code online in more than 40 programming languages. It also supports adding an input stream, saving output, and adding notes and tags. The site is powered by Sphere Engine and is operated by Sphere Research Labs.
insiders.vscode.dev
insiders.vscode helps developers write, search, review, test, or manage code and projects.
itsourcecode.com
ItSourceCode helps developers write, search, review, test, or manage code and projects.
livecodes.io
LiveCodes helps developers write, search, review, test, or manage code and projects.
masscode.io
massCode is a free and open-source developer workspace for code snippets, Markdown notes, HTTP requests, calculations, and quick developer utilities. It is a local-first desktop app organized into Spaces, with a built-in AI assistant that connects to a user's own AI provider or a local model.
Compare listed projects
Details from each project's website. Open a listing for its full overview.
CudaText
Features
- Syntax highlight for lot of languages (300+ lexers) Source: cudatext.github.io
- It is extensible by Python add-ons: plugins, linters Source: cudatext.github.io
Decompiler.com
Features
- Online decompiler for Java, Android, Python and C# Source: www.decompiler.com
editorconfig
Features
- a file format and collection of text editor plugins for maintaining consistent coding styles Source: editorconfig.org
Ideone
Features
- Add input stream, save output, add notes and tags Source: ideone.com