HTML Reference is a free guide to HTML elements and attributes. The site organizes elements into collections including base elements, forms, lists, semantic elements and tables, and marks some entries as experimental. Each element entry lists attributes with meta, self-closing, inline and block annotations.
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An online interactive HTML cheat sheet page containing code examples, web developer tools and markup generators. It includes panels for color, character and tag references, structures and attributes, plus generators for iframe, table, link, image and list markup, and a live-preview HTML editor. The pages are described as a quick guide for those already familiar with the languages.
HTML5 Blackjack is a gaming resource for guides, communities, tools, game discovery, or reference links.
HTML Dog offers tutorials, techniques, examples and references for HTML, CSS and JavaScript, described as the most common languages used in making web pages. Its tutorials are step-by-step guides, while the references cover individual code ingredients such as HTML tags, attributes and characters and CSS properties, selectors, values and media queries.
A curated list of HTML5 resources inspired by awesome-php and awesome-python. It links to articles and standards, tutorials and references covering topics such as audio, media capture, speech synthesis, WebGL, Web Workers and progressive web apps.
A website collecting cheat sheets, round-ups, quick reference cards and quick reference guides on a single page, organized by topics such as .NET, Ada, Adobe Systems, AJAX, Algebra and Amazon Web Services. Entries link to external PDF or HTML documents and list official project websites.
Alfy.com is a portal offering free HTML5 and mobile online games in the browser, including action, arcade, platform and classic titles. The site states that games can be played without downloading or installing anything, with keyboard, mouse or touch-pad controls.
AmpWhat is a lookup and reference tool for Unicode and HTML symbols, entities and characters. It offers hex or decimal codes for punctuation marks, mathematical symbols, icons and more, and lets users search and copy characters.
Apotris is a block stacking game for the Gameboy Advance. It features graphics, responsive controls and a large amount of customization for tailoring the game to preferences. The repository includes builds for several platforms, including Game Boy Advance, Android, Linux, 3DS, Nintendo Switch, HTML5+JS and Windows.
Asciify is a free ASCII and Unicode character reference for developers. It supports instant character search, toggling between standard and extended character sets, and copying hex codes or HTML entities. A related browser extension, Asciify Unicode Palette, opens a search panel by keyboard shortcut and copies a selected character to the clipboard.
Bonk is a multiplayer physics game for up to eight players at once, in which players push opponents off the edge of the level and the last one standing wins. It offers last-man-standing and team-based matches, an in-game level editor, and community-created custom maps. The current HTML5 version replaced the earlier Flash game, and accounts, maps and skins were transferred.
A PICO-8 platformer about climbing a mountain, made in four days, created by Maddy Thorson and Noel Berry. It is played with the arrow keys, X, and C, and is available on HTML5.
A site dedicated to Unicode and related topics, including characters, glyphs and internationalization. It provides reference pages on IANA character sets, Unicode planes, blocks, character categories, bidirectional and combining classes, decomposition mappings, mirrored characters, scripts and HTML entities.
GamesFrog is a site for playing online games for free in a browser, with categories such as best games, emulator games, HTML5 games, arcade games, kids games, puzzle games, girl games, adventure games, and mobile games. It includes titles like Mario, Pokemon, and Sonic, and the platform collection states no download is required.
A curated list of resources for learning PHP, covering tutorials, books, online courses and reference material. Topics include the LAMP stack, HTML, CSS, JavaScript, protocols, local development environments, tools, frameworks, object-oriented programming, design patterns, databases, testing, security and architecture.
Nitrome is a site offering free online games, including Flash, retro, arcade, puzzle, action and skill games, with HTML5 versions of legacy titles among the collections. Its games span browser, mobile, console and PC/Mac. Twin Shot Deluxe, a platform arcade shooter, is announced for Steam, Switch and mobile with 200+ levels and 1-4 player multiplayer.
OverAPI.com is a site that collects all the cheat sheets. It organizes reference sheets for programming languages, frameworks, and developer tools, listing topics from Python and JavaScript to HTML, SQL, and Linux.
PySolFC is a collection of more than 1,200 solitaire card games and a fork of PySol Solitaire. It includes games for the 52 card International Pattern deck, the 78 card Tarock deck, Ganjifa, Hanafuda, Matrix and Mahjongg games. Features include unlimited undo, player statistics, a hint system, a solitaire wizard, plug-in support and an integrated HTML help browser.
RAPT is a two-player HTML5 platformer where enemies block each level's exit. It uses a split-screen mechanic and includes a level editor that saves levels to a server account, with a public page listing custom levels. It works best in Google Chrome. The game and editor were made in 2010-2011.
Rockbasher is a free online HTML5 puzzle action game in which a young dragon-worm digs through a cave maze to find diamonds and reach the exit. Players can collect diamonds, gold and other items, use grenades, bombs and keys, and drop stones on creatures. Signing up gives access to more levels.
A browser-based emulation of a DEC PDP-1 running the original Spacewar! code, presented as an HTML5/JavaScript emulator. It includes an informative splash screen not in the original game and multiple versions of the original code. The game was conceived in 1961 and first realized on the PDP-1 in 1962. The emulation is by Norbert Landsteiner.
Super Auto Pets is a free-to-play online auto battler in which players build a team from a cast of animals with unique abilities and battle other players. It is an in-development beta release with HTML5 and server-based networked multiplayer, and a session averages about half an hour.
VibePaint.ai is a browser-based generative AI design studio that converts freehand sketches into rendered digital art. Users draw on an HTML5 canvas or upload reference art, choose from visual styles and projection surfaces, and receive high-resolution exports. Videos of up to 10 seconds can serve as references.
A solitaire site offering over 100 games, including Spider, Klondike, FreeCell and Pyramid. It is built with HTML5 and JavaScript and works on iPads and tablets. Undo support, multiple decks, stats and custom backgrounds are listed.