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Netlify 2 – Web hosting for static website through a CLI environment.
OverAPI 2
Realm 2
Stackshare tools 4 – See which open source tools are trending across StackShare.
Experiments
WebGL water 3
Finance
Bitcoin now 1 – See the current Bitcoin price.
Booking 1
Etsy 1 – Online Shopping Platform.
Finviz 1
Massdrop 2 – Community-Driven Commerce.
Patreon – Join your favorite creator’s community and pay them for making the stuff you love.
Paypal 1
Trading view 4
Games
Checkio 7 – Games for coding.
Code combat 10 – Programming Game designed for Students.
Codewars 4
Codingame 4
Itch.io 4 – Simple way to find and share indie games online for free.
General
21.co 2
AlternativeTo 3 – Crowdsourced software recommendations of alternative free software.
Arbital – Hybrid blogging and wiki platform.
Artsy
Arxiv 3 – Open access to 1,364,248 e-prints in STEM fields.
Azquotes 1 – Thousands of quotes by thousands of people.
Barnacles
Beta Observable 1 – Discover insights faster and communicate more effectively with interactive notebooks for data analysis, visualization, and exploration.
Bold.io 1
Brilliant – Online math brain puzzles.
Bubblehunt
Chemdiary 3 – Track your drug, research chemical and nootropic use.
Coderpad – Similar to Google Docs, but can execute code.
Couchsurfing 1 – Meet and stay with locals all around the world.
Coworking coffee – Find workplaces with coffee and wifi, curated by the community.
Daybook 1 – Online Notebook.
Desmos – Online Graphing Utility.
Devpost
Digital ocean 1
Dribble 1
Eventbrite
Exercism – Online execution of programming problems.
Favourite and forget
Firebase – Tools from Google for developing Apps.
Gitbook – Collaboration platform using Git as a backbone.
Gitxiv 1 – Online space to share collaborative open computer science projects.
Goodreads – Track which books you’ve read.
Google dashboard
Google docs – Online collaboration for all your office documents.
Google forms – Quick and easy quizzing or polling.
Google project
Google slides
Google trends – Discover what people are searching about.
Grouvee – Track your video game collection.
Hackerrank 4
HackMD – Realtime, Multiplatform Collaborative Markdown note editor.
Heroku apps
How stuff works 3
IFTT – Find Applets.
Instant.io 5 – Torrent Tracker.
Interviewbit
Jumpshare
Jupyter notebook – RStudio Style Markdown Notebooks done in Python.
Learn anything 5 – Platform for knowledge discovery that helps you understand any topic through the most efficient paths, as voted by the community.
Letters of note – Attempts to gather and sort fascinating letters, postcards, telegrams, faxes, and memos.
Lobsters 1 – Technology-focused community centered around link aggregation and discussion.
Matrix multiplication 1
N-gate
Namecheap – Cheap Website Domains.
Nofile 2 – Simple and secure file sharing.
Npm – npm is the package manager for JavaScript and the world’s largest software registry.
Numbeo – Collection of Web pages containing numerical and other itemizable data about cities and countries.
Pastebin – Store any text online for easy sharing.
Pinboard (popular)
Pinboard (recent)
Pinterest – Pin online ideas to a central board for later. Navigate to other people’s pins as well.
Pocket – Save internet links for later.
Product hunt 3
Project euler
Reddit grid 1
Rocumentaries 1 – Curated links to documentaries.
Scholarpedia – Peer-reviewed open-access encyclopedia, where knowledge is curated by communities of experts.
Sci-hub
Six Degrees of Wikipedia – Find the shortest navigation paths between any two Wikipedia pages.
Skyscanner – Global travel search site.
Skytorrents – Torrent Tracker.
Snoopsnoo – Discover about Reddit Users based on their post history.
Stack real time
Stack share
Startup tracker
Steemit
Telegraph
Topl – Community-driven curation for lists.
Trakt – Track which TV shows and Movies you’ve watched.
Tumblr – Blogging Website.
Tvtropes – Read about “Tropes” in popular usage.