๐ Files & Format
Online JSON Formatter & Validator
Beautify, minify and validate JSON. All calculations run locally in your browser โ free, instant and private.
Paste JSON text
๐ JSON Tool Guide
Why validate JSON during platform integrations
JSON is everywhere in cross-border commerce: marketplace APIs (Amazon SP-API, Shopify Admin API), ERP import/export configs, GA4 event payloads and AI tool outputs. Pasting malformed JSON into a support ticket wastes everyoneโs time. This tool formats, minifies and validates entirely in your browser โ nothing is uploaded, so customer data stays local.
The validator pinpoints errors (e.g. "Unexpected token } at position 42") and reports key-value counts, max depth and size after formatting โ the usual suspects are trailing commas, single quotes and full-width punctuation.
When to minify
Minifying cuts 10โ30% of payload size for config injection, log shipping or clipboard sharing. Use beautify to explode a one-liner into a readable 2-space tree.
โ FAQ
Can JSON contain comments?
No โ comments make it invalid. Use JSON5 or a "_comment" field instead.
Is my data uploaded anywhere?
Never. Parsing happens locally in your browser; the tool even works offline.