JSON - Data notation

JSON is an open source data notation created in 2001 by Douglas Crockford.

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In computing, JavaScript Object Notation or JSON ( JAY-sən), is an open-standard file format that uses human-readable text to transmit data objects consisting of attribute–value pairs and array data types (or any other serializable value). It is a very common data format used for asynchronous browser–server communication, including as a replacement for XML in some AJAX-style systems. JSON is a language-independent data format. Read more on Wikipedia...

Tags: dataNotation
There are at least 133 JSON repos on GitHub
Early development of JSON happened in State Software
The Google BigQuery Public Dataset GitHub snapshot shows 6 users using JSON in 6 repos on GitHub
ANTLR grammar for JSON
JSON LSP implementation
Pygments supports syntax highlighting for JSON
GitHub supports syntax highlighting for JSON
Indeed.com has 5,872 matches for "json developer".
json.org was registered in 2000
See also: (16 related languages) JavaScript, XML, Java, HTTP, Unicode, UTF-8, SOAP, YAML, CSV, Protocol Buffers, Gzip, XPath, CSS, Hocon, S-expressions, GeoJSON
Read more about JSON on the web: 1.
567 PLDB concepts link to JSON: Aardvark, abs, Ace Editor, ActivityPub, Adept, AL, Alma, Alumina, ana, Ante, aretext, Argdown, ArkScript, Arquero, arret, ASDF, AssemblyScript, asterius-compiler, attoparsec, Austral, Avail, badlanguage, Ballerina, bamboo, Basis Codec, Bazel, BeBasic, Bend, Berry, Bicep, binaryen, Bitsy, Bizubee, BlackCoffee, Blacklight, BlazeX, Blech, blockml, blur-markup-language, blz, bosque, Bounce, bpkg-pm, Broccoli, Bucklescript, buzz, C3, Candy, Cap'n Proto, Caramel, Carbon, cat, Catala, Ceylon, chaiscript, Chapel, chatterbot, chevrotain, chisel, circle-lang, Ć, Civet, Claro, clash, cloc, ClojureScript, Closure Templates, Coco, Coconut, codecept, CodeMirror, CoffeeKup, CoffeeScript, CokeScript, ColaScript, comby, CWL, commonmark, Concise Encoding, contracts.coffee, cor, corescript, Cortex, cosh, CouchDB, crmsh, crush, Crystal, CSON, CSpydr, CSS Doodle, CSVw, Cue, Cyber, D3.js, Dafny, Dak, daonode, dat-protocol, datafun, datascript, DDP, Deno, dexvis, dgraph, Dhall, Differential Datalog, Dixy, djangoql, Dogescript, dub-pm, Earl Grey, eco-editor, Embedded Crystal, Đ, Eiffel, EJS, Elm, Elpi, Elvish, emberjs-framework, EmberScript, emesh, Emscripten, Enso, Erlang, Esoteric Reaction, Euphoria, Eve, exkited, F Prime, Factor, Farcaster, Fardlang, fay, fetlang, firrtl, flame-ir, FlatBuffers, Flow, Flow9, FlowchartFun, flownote, FLUX, Fold, fork-lang, ForthScript, Functional PHP Preprocessor, F*, Futhark, FutureScript, GN, GETlang, gintonic, gleam, Glicol, Glisp, GLMS, Go, gogs-editor, Gradle, grid-notation, gridstudio-editor, hacspec, Halide, hashlink, Haxe, Haxe Library Manager, HCL, Hera, Heron, HHVM, highlight.js, Hina, Hjson, Hocon, Hodor, Homebrew, Hot Cocoa Lisp, hrqr, HTL, htmx, httplang, huginn, hurl, Hush, Hyperscript, Hyperscript, Ibis, IcedCoffeeScript, idyll, Imba, ImHex, Impala, infusion-framework, ink, inko, Insitux, invokator, Iode, Ion, Iterm2, Jakt, JAL compiler, Jammy, Jank, jasmine, Java, JCOF, Jedi, jedlang, Jekyll, Jemplate, Jesth, Jet, Jevko, JFlex, Jinja, Jison Lex, Jison, Jisp, JLang, JMAP, jq, JSON Query Language, JQuery, JSFuck, jsil-compiler, JSLT, json-graph-format, JSON-LD, JSON Schema, JSONScript, json->url, JSON with Comments, JSON5, JSONiq, Jsonnet, jsparagus, Julia, juvix, k-framework, Kal, KamilaLisp, KAML, kasaya, KaTeX, Keras, KGL, Khepri, kima, kitlang, ko, kode, Koka, Kotlin, ktexteditor-editor, Kubernetes, kumir, Kuroko, Ladybird, lamdu-editor, Lamdu, latte-js, Latte, Lawvere, JSON Lines, lem-editor, leo-editor, Lesma, lever, lezer, lift, Ligo, Link, Links, Linux, lispyscript, Literate CoffeeScript, LiteScript, Livr, lobster, Lodash, Logica, lsd, Luna, LWJGL, m3db, mal, manhood, Manim, Mapgen, maraca-lang, Marko, Markus, Markwhen, Marp, Mask, Mastodon, mathics, MathJSON, Mathpix Markdown, Matplotlib, mavo, MDX, Mech, Megaparsec, Melody, mermaid, micro-editor, MicroBlocks, microl, MicroPython, Mindsdb, MiniZinc, mirth, mochajs, Monaco Editor, Mond, MongoDB, monte, moya, Mu, Muldis, mun-lang, mys, Nadesiko, Nearley, Neko, NestedText, neut, Nextflow, NGS, NilScript, Nim, Nit, nlpl, Natural Language Toolkit, Node.js, noisecraft, nomnoml, noms-db, noon, nulan, Nushell, Nuua, Observable Framework, Observable, Observable Plot, obsidian, Ohayo, ohm, oil, OK, onnx, oopsilon, orca, P, packagist-pm, Pact, Pandas, Parsers, pasukon, PearScript, PEG.js, penrose, Perl, Pharen, Phel, PHP, pikelet, Pipefish, Plaid, plang, Please Build, Pod6, Podlite, PogoScript, Pomsky, popr, PostCSS, PostgreSQL, PowerShell, Prism, Project Mentat, PROMETHEUS, PRQL, psyche, Pug, PureScript, Pycket, Pygments, Python, PyTorch, Qalb, Qore, Quaint, Racket, Rakudo, ralph, RamdaScript, RAML, rant, React Native, Readable, Reason, Recursive teXt, Redis, redprl, reflex-framework, Ren-C, RetDec, Revolution, Rholang, RicScript, RigC, RobotFramework, Roc, Rockstar, Roslyn compiler, roy, RoyalScript, rpscript, ru, Ruby, runiq, Rust, Rye, Savi, Scala.js, Scikit-learn, SciPy, Scoop, score, Scrapscript, Scroll, Scroll Notation, Scryer Prolog, SDMS, semicolon, Semantic Versioning, sentient, Seq, Serious, shml, Sibilant, sile, Simoji, sizzle, skip, skulpt, Slab, Slashdown, Slim Framework, SmallBASIC, Semantic Patch Language, Snowman, Solidity, Sophie, Speedie, spider, spiral, spry, SQRL, squiggle, SRL, Secure Scuttlebutt, Script.NET, stacklang, Star, Statsplorer, Stencil, STON, Storymatic, strat, SugarSS, Superjson, SUSN, Svelte, Swallow, Sweet.js, SWI Prolog, Swift, SymPy, tablam, Taichi, Taijilang, tamgu, tangledown, tao3d, Tawa, taxa, tea, TensorFlow, TestML, Textile, tht, tibet, tidyverse, tiledb, Timpani, Tag Line Commands, tldr, tldraw, TMTP, ToffeeScript, toki sona, ToonTalk, topshell, tornado, Tosh, Touch, Toy, TAO, tridash, Triton, Truth, tsquery, Twine, txtzyme, Typecast.js, typecobol, TypeScript, U, UCG, UCL, Uiua, ultralisp-pm, Umka, Uno, unseemly, V, v8, Vale, Vcpkg, vega-editor-app, Vega, Veryl, Violent ES, Virgil, visdown, Volt, Vue, Vyxal, walt, wasmer, Wasp, WDL, 文言文編程語言, Wing, winxed, wisp, WLambda, Wonkey, Worst, Wyvern, Xgboost, XGBoost, xlwings-editor, xodio, Ecstasy, Xtext, YAMP, YANG, Yes It Is, YoptaScript, Zephir

Example from hello-world:

{ "hello": "world" }

Example from Linguist:

{
        "id": 1,
        "name": "Foo",
        "price": 123,
        "tags": ["Bar","Eek"],
        "stock": { "warehouse":300, "retail":20 }
}

Example from Wikipedia:

var y = {a: undefined};
 var ys = JSON.stringify(y,
  function (k, v){return (v === undefined) ? "UNDEFINED" : v});

Language features

Feature	Supported	Example
Lists	✓	[1, 2, 3]
Maps	✓	{"name": "Mary"}
Strings	✓	"hello world"
Integers	✓	80766866
Floats	✓	2.3
Booleans	✓	false
Case Insensitive Identifiers	X
Semantic Indentation	X
Multiline Strings	X
File Imports	X
MultiLine Comments	X
Ternary operators	X
Conditionals	X
Line Comments	X
Macros	X
Comments	X
Disk Output	X