• desmos - good little graphing calculator website
  • zooniverse - citizen science crowdsourcing project. like amazon turk but for public research.
  • gibber - a wild interactive audiovisual programming environment
  • orca - dwarf fortress meets vim meets a MIDI sequencer
  • hundredrabbits - the very cool site of Rek and Devine (person behind Orca + much more) who sail around the world creating software
  • realistik studios - ♥♥♥
  • libgen - book piracy
  • sci-hub - journal piracy
  • arxiv - open journal for physics/maths/compsci/astronomy preprints. (convert any article to html5 by changing the URL to use https://ar5iv.org/ instead)
  • virtual ANS - turn pictures into music
  • ipfs.io - seamless decentralized web protocol for creating an open internet
  • awesometapes.com - a huge collection of music from africa
  • ubu.com - an archive of avant-garde and experimental literature, film, and music
  • tekgnostics library - a huge directoy of weird web
  • monoskop - art + humanities wiki
  • 0100101110101101 - eva & franco mattes' works (i like BEFNOED)
  • wordnik - the best free online dictionary & thesaurus i've found
  • lvllvl - cool browser based pixel art thing
  • nopaint.art - press Paint if you like what you see or No if you don't.
  • robert hodgin - some inspirationally aesthetic simulation projects
  • what can a technologist do about climate change? - an article by bret victor written in 2015
  • does x cause y? - pitfalls of social science
  • cryptii - encrypt and decrypt messages
  • nicky case - creative interactive animations and games
  • the general index - An enormous database of journal metadata
  • everything shii knows - the only reliable source
  • national gallery of art - public domain art repository
  • met museum - art repository
  • europeana - art, fashion, & natural history repository
  • play.ertdfgcvb.xyz - really cool generative ASCII art
  • HORG - a taxonomy of breadbag clips
  • byrne's euclid - an animated reproduction of oliver byrne’s elements from 1847
  • quantum country - an explanation of quantum computing with a built-in spaced repetition system
  • why books donʼt work - an essay on learning from the maker of the above, andy matuschak
  • parametric press issue 02: carbon history - an interactive article that engages you in the history and context of climate change
  • the nutrition source - a succinct overview of evidence-supported best practices for food and health
  • aesthetics for birds - a blog on art criticism and philosophy
  • strong towns - urbanism advocacy
  • bartosz ciechanowski - beautiful interactive long-form concept-explaining articles
  • seeing theory - probability visualized and explained
  • how many plants - a beautifully designed houseplant care resource
  • nutshell - inter-site snippetting
  • telescopic text - a fun interactive text experiment
  • library of babel - the last website you will ever need
  • shell check - bash shell script automatic analysis
  • koch method to learn morse - learn morse code
  • which emoji scissors close - ✂️
  • numbers aplenty - fun facts about natural numbers
  • everynoise - a scatterplot of snippets of thousands of genres of music
  • tero parviainen's website - many cool generative music projects, including a music mouse implementation and beautiful exploration of In C.
  • musicForProgramming(); - a collection of minimal musical mixes
  • ooh. directory - a community-sourced repository of blogs
  • wiby - a search engine for indie websites
  • screenplays.io - a large repository of screenplays. read 'em before it gets taken down!
  • PTT - the taiwanese bbs
  • quote investigator - snopes for quote attribution
  • marginalia - indie web search
  • squares in squares - square packing world records
  • shelby.cool - website #goals
  • solarpunks.net - a blog at the intersection of technology, politics, and environmentalism
  • solarprotocol.net - a internet network protocol based on serving from whichever server has the most solar power at any given time
  • the pequod - an enormous collection of book reviews written by a man named jeffrey smith
  • web curios - a regular(-ish) newsletterblogtypething all about stuff on the internet that its author finds interesting and thinks you might too
  • openstax - high quality open source web textbooks on loads of subjects
  • open syllabus - an amazing compilation of western university syllabi, a portal into the foundational texts of any subject you're curious about
  • wavacity - a port of audacity that runs entirely in the browser
  • copernicus browser - the eu's satellite data portal
  • 1MB.club - a collection of websites that are less than 1MB :')
  • openhumans.org - open source your genome for open science
  • thomas kole - tenochtitlan - a meticulous cgi reconstruction of tenochitlan rendered to match present day photographs of its successor, mexico city
  • card game rules - an enormous repository of card games from around the world in a standard clean format
  • ASC_PAINT - a nice little paint webapp with brush, shapes, and fills, but it's ASCII. by jonathan brodsky
  • HTML spirograph - a spirograph webapp by abel vincze
  • diagram website - a non exhaustive taxonomy of smolnet (cute little websites)
  • scan of the month - high quality 3d scans of objects and accompanying articles
  • allchemy - a playful combination game (see also little alchemy or infinite craft by neal.fun)
  • trifecta - minimal image hosting software
  • font review journal - typography criticism
  • invasive species specialist group 100 worst invasive species list - oh no!
  • facts about the number thirty seven - by tom magliery
  • all about berlin - a high quality, human written introduction to the city of berlin, intended for immigrants. better than any government resource i've seen.
  • machine - a very fun physics engine "incredible machine" type game by randall munroe and friends
  • Jack Ginsberg Centre for the Book Arts - the internet part of an archive for south african art books
  • the html review - yo dawg i heard you liked other cool websites
  • floor 796 - hundreds of stitched together animations comprise... floor 796
  • pluckable strings - you can draw lines and pluck em
  • standard ebooks - a large library of public domain ebooks, like project gutenberg but with quality control
  • OpenArena - quake 3 arena in the browser over WebRTC
  • ESASky - astronomical imagery explorer. right click on something and search it in one of the offered databases to learn more about what you're looking at
  • eggcorn database - a web sight full of acorns
  • suncalc - a interface for precisely calculating where the sun will be at any point in time
  • ALIEN project - an artificial life simulation program based on a specialized physics and rendering engine
  • mosqpedia - a collection and celebration of all the beautiful mosques in the world
  • image resize and quality comparison - quickly check how much you can compress a jpeg before it becomes illegible
  • benny - a modular software playground for making live music, kind of like a max/msp remix?
  • icons - an enormous archive of gif icons (2490 and counting)
  • learn how to learn - a collection of blog posts on how to be a sigma autodidact
  • openverse - a search engine of the public domain
  • thomas thwaites - an artist who asks questions with art + technology
  • the algorithms - a repository of common computer algorithms, written in many languages
  • mess with dns - julia evans (of programming zine fame) has made a website where you can configure the DNS records for a random subdomain on this site
  • category theory illustrated - "the fundaments of mathematics are the fundaments of thought. category theory allows us to formalize those fundaments that we use in our daily (intellectual) lives"
  • terminal trove - a showcase for computer terminals
  • free public APIs - a collection of free public APIs
  • living wage calculator - a U.S. focused collection of tables showing minimum/poverty/living wages for different family structures in each county.
  • polis - a tool to crowdsource diverse opinions from a group of people, in their own words, and distill it into discrete statements that can then be polled on. e-democracy of the future.
  • apple rankings - entertaining and passionate apple (fruit) reviews
  • spacehey - a myspace inspired-retro social media site. there's a thread in the forum where everyone believes in ghosts.
  • housefresh - a dedicated & independent air purifier review site
  • global solar atlas - an interactive world map allowing you to see any region's pertinent solar power stats.
  • music theory - a comprehensive beginner's guide, by Bad Diode
  • html for people - a friendly and approachable tutorial explaining how to write html websites for a general audience
  • breeze wiki - a way to read fandom wikis without all the "extra" content
  • the science playground - a large collection of science based games
  • typst - an ergonomic alternative to LaTeX
  • hathi trust - a large online collection of public domain texts
  • akiyoshi's illusion pages - circular snakes appear to rotate 'spontaneously', etc...
  • stippler - a hypnotic web app that uses a "weighted voronoi stippling" algorithm to stipple pictures. stand far back for best results.
  • MIT Press Open Access Books - all of MIT's open access books in one easy-to-read place on archive.org
  • explorables - a repository of high quality interactive concept explainers. there are more explorables on simon willison's website
  • programmer's compendium - a (paid) computer science from scratch curriculum
  • notes on the beatles - alan pollack's extensive analysis of beatles songs
  • websites from hell - a web temple dedicated to the best of the worst
  • public domain image archive - beautiful art and imagery tastefully presented, all in the public domain
  • the sound of love - heartfelt comments from songs on youtube
  • audiblez - open source tts for turning ebooks into audiobooks
  • door of perception - ben roth's aesthetic inspirations
  • fffuel - a large collection of SVG pattern generators