- esolangs.org
a wiki about esoteric languages - noclip.website
a digital museum of video game maps - xkcd
a nerdy webcomic - cemetech
a site dedicated to calculator programming - hmpg.net
"The end of the internet" - OEIS
A database of sequences of integers - Wikipedia
An online, free, encyclopedia that anyone can edit - Library of Babel
Contains a nearly-infinite collection of "books" that are simply random characters - uniprot
A database of proteins - Wayback Machine
An internet archive, contains old versions of web pages - Stack Overflow
A programming-centered question/answer site - dlmf.nist.gov
A digital ibrary of mathematical functions - ibiblio
nil - Simulator.io
An online logic circuit creator - tio.run
A site that contains interpreters for many languages, both traditional and esoteric - Mr doob
A site with some interesting javascript projects - Guess the correlation
A game about guessing the correlation of scatter plots - molview
An online molecule builder - Girih Designer
A builder of 'girih tiles', a set of aperiodic tiles from islamic designs and architecture - Thisissand
A site that allows you to draw with sand - Pippinbarr
A site from a programmer, contains many cool games and interactive things - Uncyclopedia
A satirical comedy encyclopedia - Nukemap
A map that lets you simulate dropping nuclear bombs anywhere on the globe - plover.com
A site by a programmer who writes a blog about many interesting things - Nationstates
A site that allows you to create nations and run them within a region - Inspirobot
A site that uses AI to generate "motivational quotes" (that are almost nevevr actually motivational) - Desmos
A free, online graphing calculator - birrell.org
A site with some online javascript games - SMBC
A webcomic about various things - Hacker News
A news site for computer enthusiasts - Tyrone's Game Shack
A site with many games, including many crappyoffbrands - The Jargon File
The Jargon File, a list of hacker-culture slang/jargon - yourfallacy.is
A list of various logical fallacies that people can use - Asciimation
Star Wars, but in ascii art animation - How many of me
Uses census data to determine approximately how many people in the US have your name - example.org
An example website - Omniglot
An encyclopedia of writing systems and languages - thisworddoesnotexist.com
A site that uses AI to create nonexistant words and false definitions for them - academo.org
nil - Project gutenberg
nil - Getbadnews
nil - Eternal Jukebox
A site that uses ai to extend any song infinitely - Mouse Party
A site that teaches about drugs using mice - The life engine
A site that has simulations of living organisms - Neural Patterns
A cellular automaton that behaves analagously to a neural network - The useless web
Sends you to random useless websites: {mondrianandme.com;drawing.garden;strobe.cool} - Townscaper
nil - Low tech magazine
nil - The lawnmower game
nil - Electricaloutlet.org
A site that provides information about electrical outlets. - href.li
A site that hides referrers in html links - virtual slide rule
A virtual slide rule - I paid the most
A site where you can pay more than the last person to display a message. - jrwr.io
A simulation of an ancient computer that hosts a CTF game (that I have no idea how to begin solving) - zombo.com
An infinitely-loading loading screen with no content beyond it - bruno-simon.com
A uniquely-designed website that you navigate by driving a car around a map - nuggety.com
A meta-image-searching site that compares results from many different image search sites - memex.marginalia.nu
nil - HP Museum
nil - Micropolis.JS
nil - C++ cheat sheet
nil - pubchem
A database of chemical compunds - semantle
A word game, similar to wordle, that uses semantic similarity to score guesses. - Worldle
A geography game inspired by wordle - mario
An online remake of the original Super Mario Bros. Featuring randomized levels and mods - kuribo64
A forum about video game modding, specifically nintendo games. Not too active, but still a cool site - Defender of the favicon
A playable game, that fits inside of the favicon of the website - bellard.org/pi
nil - weighoff.net
nil - lobste.rs
nil - macos8.app
nil - Regex Golf
nil - slide rule universe
A site all about slide rules. Visually, it is a relic of the ancient days of the internet - History of Frogs
"History of Frogs" - the publication of this book almost prevented Newton's math book from being published - Cetecean Community v. Bush
A court case where someone sued the President on behalf of the whales - Universal Paperclip
An idle game about making paperclips - A Pickle for the Knowing Ones
"A Pickle for the Knowing Ones" - A book written by an eccentric rich man that is the opposite of well-written - l-2d.glitch.me
An online interpreter for a drawing-based programming language inspired by Lambda Calculus - dangermouse.net
Someone's personal website, contains things such as esoteric programming languages, webcomics, and more - Frederic
An implementation of an operating system based on principles of operant conditioning - The Indie Web
nil - Dungeon scrawl
nil - Chemistry Webbook
An online database of chemical information - The Angry GM
A website containing articles about how to be a better GM. - Windows 93
nil - Elevator Saga
nil - status.pizza
nil - oimo.io
nil - chicken.pdf
nil - strg.snek
A cross between snake and a maze exploration game - strg.snek
A cross between snake and a maze exploration game - IPA Keyboard
A site containing a keyboard for typing IPA characters - locrian.zone
- Gemini Portal
A portal for viewing sites hosted on the gemini protocol by way of https - sadgrl.online
- pixelart tutorial
- thedeadflagblues.carrd.co
- kungfoomanchu.com
- veebo.zone
- Custom MKWII Wiki
A wiki of custom Mario Kart Wii content, such as tracks, characters, and packs. - themostogname.pw
- textfiles.com
A collection of under construction gifs scraped from geocities - gifcities.org
A collection of gifs from old geocities pages. - Wiki TI
A wiki documenting the technical details of TI Calculators. - Wireworld Computer
A computer built in the wireworld cellular automaton. - href.cool
- PHP Sadness
A site documenting the quirks of php - The Gymnosperm Database
An online database of Gymnosperms - Unicode Reference
The official Unicode Reference Tables - Genetic Cars 2
A "game" (evolution simulation) about designing cars. - Hello World Quiz
A hello world quiz - Given a hello world snippet, name the language. - What the Hex
Given a hex code, select the correct color. - Mechanical Watch
An interactive, step-by-step guide to the inner workings of a mechanical watch. - Wiby.me
An old-web search engine - WebSDR
A collection of public software-defined radios connected to the internet. - CollapseOS
An OS designed to outlast a societal collapse. - Insecam
A collection of unsecured web-facing cameras around the world. - The Museum of Alexandra
An interesting page, designed as a museum. Has lots of interesting exhibits and links - NowNowNow
A page of "now" pages on personal websites. These document current goings-on - Hatetris
A tetris variant where the AI always gives you the worst possible piece. - z80.info
A site all about the z80 microprocessor