JavaScript Object Notation (.json)
RFC मानकJavaScript Object Notation (JSON) is a lightweight, human-readable text format for data interchange, completely language-independent and universally used for web APIs.
JSON को HTML में कन्वर्ट करें
मुफ्त इन-ब्राउज़र JSON से HTML कन्वर्टर। अपने डिवाइस पर तुरंत फ़ाइलें कन्वर्ट करें।
JSON ऑनलाइन कॉम्प्रेस करें
ब्राउज़र में 100% निजी कंप्रेसन — फ़ाइलें कभी भी आपके डिवाइस से बाहर नहीं जाती हैं
इंस्पेक्ट और मेटाडेटा
ऑपरेटिंग सिस्टम और फ़ाइल विश्लेषक शुरुआती बाइनरी बाइट अनुक्रम का निरीक्षण करके JSON फ़ाइलों की पहचान करते हैं:
बाइट-स्तरीय हेडर हस्ताक्षर (मैजिक बाइट्स)
ऑपरेटिंग सिस्टम और फ़ाइल विश्लेषक शुरुआती बाइनरी बाइट अनुक्रम का निरीक्षण करके JSON फ़ाइलों की पहचान करते हैं:
HEX हस्ताक्षर (ऑफ़सेट 0):
7B or 5BASCII निरूपण: { or [
मानकीकरण: RFC 8259 / ECMA-404 / ISO/IEC 21778
तकनीकी विनिर्देश
| कंटेनर आर्किटेक्चर | Lightweight, text-based, language-independent data interchange format |
| कंप्रेशन | Gzip / Brotli / Zstandard text compression (typically achieves 80%-90% ratio) |
| बाइट एंडियानेस | UTF-8 encoded Unicode (no Byte Order Mark / BOM recommended) |
| कलर स्पेस | Not applicable |
| चैनल और संरचना | Six basic data types: object, array, string, number, boolean, null |
| अधिकतम आयाम | Unbounded; limited only by parser memory and maximum string length |
| पारदर्शिता (Transparency) | Not applicable |
| स्ट्रीमिंग और प्रोग्रेसिव | NDJSON (Newline Delimited JSON) / JSON Lines enables progressive stream processing |
तकनीकी तुलना मैट्रिक्स: JSON बनाम प्रतियोगी
| तकनीकी विशेषता | JSON (वर्तमान) | YAML | XML | Protocol Buffers |
|---|---|---|---|---|
| Syntax Complexity | Minimal (6 types, strict syntax) | High (indentation-based, complex spec) | High (verbose closing tags, namespaces) | Schema-defined binary wire format |
| Parsing Performance | Extremely fast in all modern languages | Slow (complex indentation parsing) | Moderate to slow (heavy DOM construction) | Ultra-fast (zero-copy binary deserialization) |
| Comments Supported | No (deliberately excluded to prevent metadata creep) | Yes (# comments) | Yes (<!-- comments -->) | Yes in .proto files |
| Network Payload Size | Compact text (very high gzip ratio) | Compact text | Verbose text (heavy tag repetition) | Ultra-compact binary |
सामान्य करप्शन मोड और हेक्स रिकवरी गाइड
⚠️ SyntaxError: Unexpected token , in JSON at position X.
मूल कारण: Trailing comma after the last item in an array or object, which is strictly illegal in RFC 8259 JSON.
रिकवरी: Remove trailing commas from object keys and array entries before passing to JSON.parse().
⚠️ SyntaxError: Unexpected token ' in JSON.
मूल कारण: Strings or keys enclosed in single quotes ('') instead of double quotes ("").
रिकवरी: Replace all single-quoted strings and keys with standard double-quoted strings.
सुरक्षा विश्लेषण और पार्सर अटैक वेक्टर्स
JSON is text-only and safe from direct code execution, but parsing untrusted JSON can lead to Prototype Pollution, ReDoS, or memory exhaustion.
ज्ञात अटैक वेक्टर्स
- Prototype Pollution: Keys named '__proto__' or 'constructor' modifying Object.prototype in JavaScript applications.
- Stack overflow denial of service via deeply nested JSON structures (e.g. 10,000 opening brackets).
- Loss of numeric precision: JavaScript numbers larger than 2^53 - 1 (9,007,199,254,740,991) silently lose precision.
सुरक्षात्मक सर्वोत्तम प्रथाएँ: Never evaluate JSON with eval(). Use JSON.parse() and sanitize '__proto__' properties in recursive object merge functions.
ऐतिहासिक मूल और मील के पत्थर
मुख्य लाभ और खूबियाँ
- Human-readable, self-describing, and concise text structure.
- Native parsing support built into JavaScript engines (JSON.parse) and every major programming language.
- Strict specification prevents arbitrary code execution.
तकनीकी सीमाएँ और कमियाँ
- No support for comments, trailing commas, or circular object references.
- No native binary types (binary data must be base64-encoded, inflating size by 33%).
- Inefficient serialization compared to binary formats like Protocol Buffers or MessagePack.
रोचक तकनीकी जानकारी
- Douglas Crockford added the software license clause 'The Software shall be used for Good, not Evil' to the original JSMin JSON tools.
- JSON is a strict subset of JavaScript syntax, but until ES2019, raw unescaped U+2028 and U+2029 characters were valid in JSON but invalid in JavaScript strings.
अक्सर पूछे جانے वाले तकनीकी प्रश्न
Why doesn't JSON allow comments?
Douglas Crockford deliberately excluded comments from the JSON specification to prevent developers from putting parsing instructions or environment-dependent configuration pragmas into data feeds, preserving universal interoperability.
How do you store 64-bit integers in JSON without losing precision?
JavaScript's native Number type is an IEEE 754 double-precision float, which only supports integers up to 2^53 - 1 precisely. 64-bit integers (like database IDs or timestamps) must be serialized as strings (e.g. '1234567890123456789') in JSON.
संबंधित JSON रूपांतरण जोड़े
Render structured JSON payloads into styled, human-readable HTML tables.
Parse and extract tabular structured data from HTML pages into JSON objects.
Parse SQL schema and insert queries to extract structured relational database rows into clean JSON objects.
Ingest structured JSON object arrays into relational SQLite database tables with typed columns.
Extract Adobe Swatch Exchange binary color palettes into structured JSON color design tokens.
Compile JSON design token color swatches into binary Adobe ASE files for Photoshop and Illustrator.
Parse GIMP/Inkscape GPL text color palettes into web-ready JSON color arrays.
Convert JSON design tokens and color palettes into standard CSS Custom Properties (:root variables).