Over JSON-bestanden
JSON (JSON Data · Documentformaat)
JSON Data (.json) is een standaard bestandsformaat dat door KaijuConverter wordt ondersteund voor gegevensuitwisseling, archivering en platformonafhankelijke conversie.
Categorie
Documents & Text
Extensie
.json
MIME-type
application/json
Bruikbaar als
HOE JSON
IS ONTSTAAN.
JSON — JavaScript Object Notation — was popularized by Douglas Crockford around 2001-2002 as a lightweight alternative to XML for browser-server data exchange. The syntax was lifted directly from the way JavaScript already defined object literals, which made parsing trivially cheap in the browser: eval(jsonString) worked (before anyone realized that was a security nightmare).
JSON went from a hack to a standard remarkably fast: ECMA-404 in 2013, RFC 8259 in 2017, and by then nearly every new REST API used it instead of XML. Crockford’s famous line was "I don’t want to maintain JSON" — he refused to version the format, arguing simplicity was its main virtue. Today JSON carries config files, API payloads, logs, database documents, build manifests, and an ever-growing chunk of the data plumbing of the internet.
WEETJES &
TRIVIA.
JSON is a subset of JavaScript, but not a strict one — some valid JSON (like leading zeros) is invalid JS, and vice versa.
Douglas Crockford intentionally refused to version the format: "JSON is done. It does not need a v2."
JSON does not permit trailing commas or comments — which is why JSONC (JSON with Comments) and JSON5 were invented.
The largest public JSON file is OpenStreetMap's planet dump — over 100 GB minified.
JSON's only allowed whitespace outside strings is tab, space, newline, and carriage return — nothing else.
STERKE PUNTEN &
BEPERKINGEN.
Sterke punten
- Dead-simple — you can memorize the entire grammar on one page.
- Native parsers in every programming language.
- Human-readable and easy to debug.
- Compact — much smaller than equivalent XML.
- Frozen spec — a JSON parser written in 2010 still handles new JSON files from 2026.
Beperkingen
- No comments allowed — config files feel verbose.
- No trailing commas — a constant source of parse errors.
- No native date, decimal, or binary types — everything is strings or numbers.
- Easily bloated by repeated keys; large payloads compress poorly vs binary alternatives.
- Streaming is awkward — JSON wants to be parsed whole.
Typische bestandsgroottes
Small config
< 1 KB
REST API payload
1-100 KB
Database export
10 MB - 100 GB
Technische specificaties
- MIME type
- application/json
- Extension
- .json
- Standard
- ECMA-404, RFC 8259
- Encoding
- UTF-8, UTF-16, or UTF-32
- Allowed types
- object, array, string, number, boolean, null
CONVERTEER VANUIT
JSON
Veelvoorkomende toepassingen
Web APIs, configuration files, data exchange, NoSQL databases
Gerelateerde formaten
Populaire vergelijkingen
JSON vs TXT
Verschillen, bestandsgrootte en wanneer je welk formaat kiest.
JSON vs TSV
Verschillen, bestandsgrootte en wanneer je welk formaat kiest.
JSON vs PDF
Verschillen, bestandsgrootte en wanneer je welk formaat kiest.
JSON vs DOCX
Verschillen, bestandsgrootte en wanneer je welk formaat kiest.
JSON vs ODT
Verschillen, bestandsgrootte en wanneer je welk formaat kiest.
JSON vs MD
Verschillen, bestandsgrootte en wanneer je welk formaat kiest.
Populaire JSON-conversies
De meest gevraagde doelformaten vanaf JSON.
Veelgestelde vragen over JSON
Veelgestelde vragen
Upload je JSON-bestand naar KaijuConverter om het direct in je browser om te zetten naar PDF, JPG, PNG of een ander standaardformaat.
Ja, gratis tot 25 MB (tot 1 GB met 24-uurspas of Pro) en alle bestanden worden na 60 minuten automatisch verwijderd.
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