Sample JSON

drop-in test files · CC0 / public domain

Tiny JSON files for testing the tools on this site. Synthetic — no real data inside. Save them anywhere.

— S., [email protected]

Files

users-1k.json

1 000 fake users · ~140 KB · for csv / size tests

nested.json

deeply nested · for tree viewer / flatten

messy-llm.json

trailing commas + single quotes + comments · for json-repair

openapi-petstore.json

OpenAPI 3.0 sample · for openapi-to-json-schema

complex-schema.json

JSON Schema with $ref + oneOf · for visualizer / validator

ndjson-logs.jsonl

~50 lines · for ndjson-to-json

What to test with each

users-1k.json for JSON → CSV, size analyzer, stats. nested.json for the tree viewer, flatten, graph view. messy-llm.json for json-repair — covers trailing commas, single quotes, unquoted keys, and JS-style comments. openapi-petstore.json for openapi-to-json-schema. complex-schema.json for the schema visualizer and validator. ndjson-logs.jsonl for NDJSON → JSON — the more capable JSONL tools live at jsonlkit.com.