Text Sharing
Gists
Pastie
Pastebin.com - #1 paste tool since 2002!
Pasted.co - The pastebin that pays you for your Tinypaste
transfer.sh - Easy and fast file sharing from the command-line.
hastebin
Rentry.co - Markdown Pastebin markdown pastebin
termbin.com - terminal pastebin
Ubuntu Pastebin
pb a lightweight pastebin (and url shortener) built using flask ptpb/pb self hosted
nicksergeant/snipt: 👩💻 A code snippet app for teams and individuals. self hosted
15 FREE Pastebin Alternatives You Can Use Right Away – Root Report
HackMD - Collaborative Markdown Knowledge Base
self-hosting#HedgeDoc
Whiteboard
Sketchpad - Draw, Create, Share!
Free Online Whiteboard for Real-Time Collaboration | Canva
Free Online Whiteboard | Collaborate in Real Time | Miro
FigJam is an online whiteboard for teams to explore ideas together
Code Execution
A Round up of Online Code Playgrounds
7 of the Best Code Playgrounds - SitePoint
The online code editor for web apps. Powered by Visual Studio Code. - StackBlitz
OneCompiler - Write, run and share code online | Free online compiler with 60+ languages and databases multi-language, compiled language and frameworks
RunKit is Node prototyping JavaScript, with npm support (originally Tonic)
Project Jupyter | Home multi-language
nbviewer loads notebook
Replit: the collaborative browser based IDE - Replit multi-language, not very scalable
Ideone.com - Online Compiler and IDE >> C/C++, Java, PHP, Python, Perl and 40+ other compilers and interpreters
Design & Build High-Quality Software with Crowdsourcing | Topcoder
JS Bin - Collaborative JavaScript Debugging
CodePen - Front End Developer Playground & Code Editor in the Browser
jsFiddle
Plunker
JavaScript Tutor - Visualize JavaScript code execution
CodeSandbox: Online Code Editor Tailored for Web Application Development
What’s Unique About CodeSandbox – Ives van Hoorne – Medium
HTML5, CSS3, JS Demos, Creations and Experiments | CSSDeck mostly for CSS
Try IPython from your Browser: PythonAnywhere
Python Cloud IDE | Python Fiddle
Python Tutor - Visualize Python code execution
Trinket Python, turtle module, coding with blocks
Regular Expressions 101 for regex
Virtual Machines
Modern Dev Environment Delivered · Koding
Discussion
utterances comments with GitHub issues
giscus comments with GitHub discussion
Gitalk Demo | Aotu.io「凹凸实验室」
Comment system using React and GitHub Discussions
Disqus - The #1 way to build an audience on your website