JSON-Studio/format.html at main · jssuthahar/JSON-Studio · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>JSON Formatter & Validator — free, online, nothing uploaded | JSON Studio</title>
<meta name="description" content="Free online JSON formatter, validator and minifier. Beautify or minify JSON, sort keys, escape strings, and get parse errors with the exact line and column. Runs in your browser — no upload, no signup.">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="canonical" href="https://jsonstudio.msdevbuild.com/format.html">
<link rel="manifest" href="manifest.webmanifest">
<meta name="theme-color" content="#0078d4" media="(prefers-color-scheme: light)">
<meta name="theme-color" content="#12151c" media="(prefers-color-scheme: dark)">
<link rel="apple-touch-icon" href="assets/img/apple-touch-icon.png">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-title" content="JSON Studio">
<link rel="icon" href="assets/img/favicon.svg" type="image/svg+xml">

<meta property="og:type" content="website">
<meta property="og:title" content="JSON Formatter & Validator — free, online, nothing uploaded">
<meta property="og:description" content="Free online JSON formatter, validator and minifier. Beautify or minify JSON, sort keys, escape strings, and get parse errors with the exact line and column. Runs in your browser — no upload, no signup.">
<meta property="og:url" content="https://jsonstudio.msdevbuild.com/format.html">
<meta property="og:image" content="https://jsonstudio.msdevbuild.com/assets/img/og-cover.png">
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">
<meta property="og:image:alt" content="JSON Studio — every JSON tool, in your browser">
<meta property="og:site_name" content="JSON Studio by MSDEVBUILD">

<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:image" content="https://jsonstudio.msdevbuild.com/assets/img/og-cover.png">
<meta name="twitter:title" content="JSON Formatter & Validator — free, online, nothing uploaded">
<meta name="twitter:description" content="Free online JSON formatter, validator and minifier. Beautify or minify JSON, sort keys, escape strings, and get parse errors with the exact line and column. Runs in your browser — no upload, no signup.">

<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap" rel="stylesheet">
<link rel="stylesheet" href="assets/css/styles.css">
<link rel="stylesheet" href="assets/css/convert.css">
<link rel="stylesheet" href="assets/css/present.css">
<link rel="stylesheet" href="assets/css/workbench.css">
<link rel="stylesheet" href="assets/css/tool-focus.css">
<link rel="stylesheet" href="assets/css/editor.css">

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "SoftwareApplication",
  "name": "JSON formatter, validator & minifier — JSON Studio",
  "url": "https://jsonstudio.msdevbuild.com/format.html",
  "applicationCategory": "DeveloperApplication",
  "operatingSystem": "Any (runs in browser)",
  "offers": { "@type": "Offer", "price": "0", "priceCurrency": "USD" },
  "creator": { "@type": "Person", "name": "Suthahar Jegatheesan", "url": "https://www.msdevbuild.com/" },
  "description": "Format, validate, minify, sort and escape JSON in your browser. Precise error messages with line and column. Free, client-side, nothing uploaded."
}
</script>
<script>(function(){try{var t=localStorage.getItem('json-studio-theme');if(!t&&window.matchMedia&&matchMedia('(prefers-color-scheme: dark)').matches)t='dark';if(t)document.documentElement.setAttribute('data-theme',t);}catch(e){}})();</script>
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "BreadcrumbList",
      "itemListElement": [
        { "@type": "ListItem", "position": 1, "name": "JSON Studio", "item": "https://jsonstudio.msdevbuild.com/" },
        { "@type": "ListItem", "position": 2, "name": "Tools", "item": "https://jsonstudio.msdevbuild.com/tools.html" },
        { "@type": "ListItem", "position": 3, "name": "Formatter & validator", "item": "https://jsonstudio.msdevbuild.com/format.html" }
      ]
    },
    {
      "@type": "FAQPage",
      "mainEntity": [
        { "@type": "Question", "name": "Is my JSON uploaded to a server?", "acceptedAnswer": { "@type": "Answer", "text": "No. The formatter is JavaScript running in your own tab; the payload never leaves your machine. You can check in DevTools — the network tab stays silent while you work." } },
        { "@type": "Question", "name": "Can it handle JSON with comments or trailing commas?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — tick \"Accept JSON5-ish input\". It tolerates comments, trailing commas, single-quoted strings and unquoted keys, which is what most config files and hand-edited payloads actually look like, and converts them to strict JSON." } },
        { "@type": "Question", "name": "How large a file can it format?", "acceptedAnswer": { "@type": "Answer", "text": "Large ones. Since there is no upload step, the limit is your browser's memory rather than a server request size — multi-megabyte payloads format in place." } }
      ]
    },
    {
      "@type": "HowTo",
      "name": "How to use the Formatter & validator",
      "step": [
        { "@type": "HowToStep", "position": 1, "text": "Paste, drop or upload your JSON on the left." },
        { "@type": "HowToStep", "position": 2, "text": "Pick a mode — beautify, minify, escape or unescape — and an indent width." },
        { "@type": "HowToStep", "position": 3, "text": "Copy the result, or download it as a .json file." }
      ]
    }
  ]
}
</script>
</head>
<body>

<div id="site-header"></div>
<span id="top"></span>

<main class="convert-shell">
  <div class="convert-head">
    <div class="container tool-topbar">
      <h1>JSON formatter &amp; validator</h1>
      <p class="tt-sub">Beautify, minify, sort, escape — with errors pinned to line and column.</p>
      <a class="tt-about" href="#about">About &amp; FAQ ↓</a>
    </div>
    <div class="container">
      <div class="opt-bar">
        <div class="opt">
          <label for="opt-mode">Mode</label>
          <select id="opt-mode">
            <option value="beautify" selected>Beautify</option>
            <option value="minify">Minify</option>
            <option value="escape">Escape to string</option>
            <option value="unescape">Unescape from string</option>
          </select>
        </div>
        <div class="opt">
          <label for="opt-indent">Indent</label>
          <select id="opt-indent">
            <option value="2" selected>2 spaces</option>
            <option value="4">4 spaces</option>
            <option value="tab">Tab</option>
          </select>
        </div>
        <div class="opt">
          <input type="checkbox" id="opt-sort">
          <label for="opt-sort" style="cursor:pointer;">Sort keys</label>
        </div>
        <div class="opt">
          <input type="checkbox" id="opt-relaxed">
          <label for="opt-relaxed" style="cursor:pointer;">Accept JSON5-ish input</label>
        </div>
      </div>
    </div>
  </div>
  <div class="convert-grid">
    <section class="pane">
      <div class="pane-head">
        <div class="pane-title">JSON input</div>
        <button id="btn-sample">Load sample</button>
        <button id="btn-upload">Upload</button>
        <button id="btn-clear">Clear</button>
        <input type="file" id="file-input" accept=".json,.txt,application/json" style="display:none;">
      </div>
      <div class="pane-body">
        <textarea id="input" class="code-area" spellcheck="false" placeholder="{&quot;paste your JSON here&quot;: true}"></textarea>
      </div>
      <div class="pane-status" id="in-status">Waiting for input.</div>
    </section>

    <section class="pane">
      <div class="pane-head">
        <div class="pane-title">Result</div>
        <button class="primary" id="btn-run">Format</button>
        <button id="btn-copy">Copy</button>
        <button id="btn-download">Download</button>
      </div>
      <div class="pane-body">
        <textarea id="output" class="code-area" spellcheck="false" readonly placeholder="Formatted output appears here."></textarea>
        <p class="note">Relaxed mode tolerates trailing commas, single quotes, unquoted keys and comments — handy for pasting config files.</p>
      </div>
      <div class="pane-status" id="out-status"></div>
    </section>
  </div>
</main>


<section class="tool-home" id="about">
  <div class="container">
    <div class="th-more">Reference</div>
    <header class="th-head">
      <div class="kicker">Formatter & validator</div>
      <h2>About the JSON formatter</h2>
      <p>A JSON formatter is the tool you reach for when an API hands you 40KB on one line. This one beautifies it with 2-space, 4-space or tab indentation, minifies it back down when you need it small, sorts keys so two payloads can be compared, and escapes or unescapes JSON that has been embedded inside another string. If the document will not parse, it tells you the line and column and quotes the offending line, instead of the usual "Unexpected token".</p>
      <div class="cta-row">
        <a class="btn-primary" href="#top">Use the tool ↑</a>
        <a class="btn-secondary btn-present" href="presentation.html"><svg class="nav-ico" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.7" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><rect x="3" y="4" width="18" height="13" rx="2"/><path d="M12 17v3M9.5 20h5"/><path d="m10.6 8.8 4 2.7-4 2.7z" fill="currentColor" stroke="none"/></svg> Present it</a>
      </div>
    </header>

    <div class="th-features">
      <div class="th-feature">
        <div class="fi">01</div>
        <h3>Beautify or minify</h3>
        <p>Two-space, four-space or tab indentation, or strip it all out and see how much smaller it got.</p>
      </div>
      <div class="th-feature">
        <div class="fi">02</div>
        <h3>Errors you can act on</h3>
        <p>Parse failures name the line and column and quote the offending line, instead of "Unexpected token".</p>
      </div>
      <div class="th-feature">
        <div class="fi">03</div>
        <h3>Relaxed input</h3>
        <p>Optionally accept comments, trailing commas, single quotes and unquoted keys — real config files, in other words.</p>
      </div>
      <div class="th-feature">
        <div class="fi">04</div>
        <h3>Sort, escape, unescape</h3>
        <p>Order keys for comparison, escape JSON into a string literal, or pull one back out.</p>
      </div>
    </div>

    <div class="seo-grid">
      <div class="seo-main">
        <h3 id="how">How to use it</h3>
        <ol class="seo-steps">
          <li>Paste, drop or upload your JSON on the left.</li>
          <li>Pick a mode — beautify, minify, escape or unescape — and an indent width.</li>
          <li>Copy the result, or download it as a .json file.</li>
        </ol>

        <h3 id="faq">Questions</h3>
        <div class="faq">
          <details>
            <summary>Is my JSON uploaded to a server?</summary>
            <div class="faq-body"><p>No. The formatter is JavaScript running in your own tab; the payload never leaves your machine. You can check in DevTools — the network tab stays silent while you work.</p></div>
          </details>
          <details>
            <summary>Can it handle JSON with comments or trailing commas?</summary>
            <div class="faq-body"><p>Yes — tick "Accept JSON5-ish input". It tolerates comments, trailing commas, single-quoted strings and unquoted keys, which is what most config files and hand-edited payloads actually look like, and converts them to strict JSON.</p></div>
          </details>
          <details>
            <summary>How large a file can it format?</summary>
            <div class="faq-body"><p>Large ones. Since there is no upload step, the limit is your browser's memory rather than a server request size — multi-megabyte payloads format in place.</p></div>
          </details>
        </div>
      </div>

      <aside class="seo-side">
        <div class="seo-card" id="share">
          <h3>Share this tool</h3>
          <p>Send it to a colleague — the link only, never anything you have pasted in.</p>
          <div data-share data-share-title="Formatter & validator — JSON Studio"></div>
        </div>
        <div class="seo-card">
          <h3 class="with-ico"><svg class="nav-ico" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.7" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><rect x="3" y="4" width="18" height="13" rx="2"/><path d="M12 17v3M9.5 20h5"/><path d="m10.6 8.8 4 2.7-4 2.7z" fill="currentColor" stroke="none"/></svg> Present this tool</h3>
          <p>Demoing to a client or a class? Press <kbd>Shift</kbd><kbd>P</kbd> for full-screen presentation mode — chrome hidden, type scaled up, laser pointer included.</p>
          <a class="seo-link" href="presentation.html">How presentation mode works →</a>
        </div>
        <div class="seo-card">
          <h3>Related tools</h3>
          <ul class="seo-related">
            <li><a href="tool.html"><span class="ri">{ }</span>JSON to diagram</a></li>
            <li><a href="diff.html"><span class="ri">A|B</span>JSON diff</a></li>
            <li><a href="json-schema.html"><span class="ri">Sχ</span>Schema generator</a></li>
          </ul>
          <a class="seo-link" href="tools.html">All 14 tools →</a>
        </div>
        <div class="seo-card quiet">
          <h3>Private by construction</h3>
          <p>No backend exists. Everything on this page runs in your browser, so nothing you paste is uploaded, logged or retained.</p>
          <a class="seo-link" href="privacy.html">Read the privacy policy →</a>
        </div>
      </aside>
    </div>
  </div>
</section>

<div id="site-footer"></div>

<script src="assets/js/site.js"></script>
<script src="assets/js/payload-link.js"></script>
<script src="assets/js/tool-kit.js"></script>
<script src="assets/js/format.js"></script>
<script src="assets/js/present.js"></script>
<script src="assets/js/workbench.js"></script>
<script src="assets/js/history.js"></script>
<script src="assets/js/gutter.js"></script>
<script src="assets/js/editor.js"></script>
<script src="assets/js/share.js"></script>
</body>
</html>