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From simple formatting to AI-powered error diagnosis — JSON Studio handles it all, privately, in your browser.
When JSON fails to parse, we don't just show a raw error. We explain what went wrong in plain English, with before/after examples and a one-click auto-fix.
Common mistakes like trailing commas, single quotes, and unquoted keys are automatically detected and fixed. One button, clean JSON.
Get smart suggestions on your JSON structure: missing IDs, timestamps, pagination patterns, naming consistency, and REST API best practices.
AI infers a schema from your JSON — showing field names, types, whether they're required, and example values. Like having a type system without the setup.
Detects sensitive data exposure: API keys, tokens, passwords, PII (emails, phones, SSNs), and overly permissive fields — before you accidentally share them.
Identifies JSON structure issues that hurt performance: excessive nesting, redundant data, large array payloads, and bloated field names.
Load real JSON from Stripe, GitHub, OpenAI, Slack, Shopify, Twitter and more — one click to explore their actual data shapes.
Navigate deeply nested JSON with a collapsible tree. Search, expand, collapse — fully keyboard accessible.
Common questions about parsing and debugging JSON online.
Stripe is the world's most used payment API. Every Stripe webhook delivers a JSON event object — understanding its structure is essential for building reliable payment integrations.
This Stripe webhook JSON example shows the exact shape of a payment_intent.succeeded event, the most common webhook you'll handle.
status field moves through: requires_payment_method → processing → succeeded.type, livemode, and pending_webhooks. Always verify the livemode flag.metadata fields, trailing commas when manually building test payloads, and unquoted keys when copying from console output. Use JSON Studio's auto-fix to clean these instantly.{
"id": "pi_3PkJMN2eZ1234567",
"object": "payment_intent",
"amount": 5999,
"currency": "usd",
"status": "succeeded",
"customer": "cus_Qab123456789",
"description": "Order #1042 — Premium Plan",
"receipt_email": "alex@example.com",
"metadata": {
"order_id": "1042",
"user_id": "usr_98765"
},
"created": 1724000000,
"livemode": false
}{
"id": "evt_3PkJMN2eZ1234",
"object": "event",
"type": "payment_intent.succeeded",
"created": 1724000000,
"livemode": false,
"data": {
"object": {
"id": "pi_3PkJMN2eZ1234567",
"amount": 5999,
"currency": "usd",
"status": "succeeded"
}
},
"pending_webhooks": 1
}GitHub's REST API is one of the most widely integrated APIs in the world. Whether you're building a CI/CD dashboard, a code review tool, or an analytics platform, understanding the GitHub API JSON response format is essential. Below are real examples of the repository and pull request objects returned by the GitHub API.
{
"id": 123456789,
"name": "awesome-project",
"full_name": "alexj/awesome-project",
"owner": {
"login": "alexj",
"id": 1234567,
"type": "User"
},
"private": false,
"stargazers_count": 1842,
"language": "TypeScript",
"topics": ["typescript","api","open-source"],
"license": { "key": "mit", "name": "MIT License" },
"default_branch": "main",
"created_at": "2023-01-15T10: 00: 00Z"
}{
"number": 142,
"state": "open",
"title": "feat: add dark mode support",
"user": { "login": "contributor99" },
"body": "Adds dark mode. Closes #138",
"labels": [
{ "name": "enhancement", "color": "84b6eb" }
],
"commits": 3,
"additions": 456,
"deletions": 89,
"changed_files": 12,
"created_at": "2024-08-10T14: 00: 00Z"
}Link header contains next/prev URLs, not the response body. Individual resource objects like repos and PRs are always returned complete.X-RateLimit-Remaining response header tells you how many requests remain.2024-08-10T14:00:00Z). Parse with new Date(str) in JavaScript or datetime.fromisoformat() in Python.The most frustrating part of working with JSON isn't writing it — it's debugging it. A single trailing comma, an empty field without a value, or a key without quotes causes your entire JSON to fail silently. JSON Studio's json auto fix trailing comma engine and json empty field error fix tool handle all of these automatically.
{"a":1,} — The most common JSON error. Valid in JavaScript, illegal in JSON. Auto-fixed in one click.{"name": ,} — Every key must have a value. Auto-fix replaces empty values with null.{'name': 'Alex'} — JSON requires double quotes. Single quotes are JavaScript-only syntax.{name: "Alex"} — All keys must be quoted in JSON. Auto-fix adds quotes around bare keys.// comment or /* block */ — JSON has no comment syntax. Auto-fix strips all comments.null.{"a":1 "b":2} — Auto-fix detects adjacent values with no separator and inserts commas.{ and [ brackets and appends the closing characters.{
"name": "Alex Johnson",
"email": "alex@example.com",
"role": "admin",
}{
"name": "Alex Johnson",
"email": "alex@example.com",
"role": "admin"
}The OpenAI API JSON format follows a consistent chat completion structure used by GPT-4o, GPT-4, and compatible APIs like Anthropic and Mistral. After loading any API response, use JSON Studio's built-in json schema inference tool to automatically extract field names, types, and structure — no manual work needed.
choices array contains one or more response objects. Each has a message with role and content, and a finish_reason explaining why generation stopped.prompt_tokens, completion_tokens, and total_tokens. Essential for cost monitoring — multiply total_tokens by the model's per-token price.{
"id": "chatcmpl-9xKjLMNOP",
"object": "chat.completion",
"model": "gpt-4o",
"created": 1724000000,
"choices": [{
"index": 0,
"message": {
"role": "assistant",
"content": "JSON is a lightweight data format..."
},
"finish_reason": "stop"
}],
"usage": {
"prompt_tokens": 24,
"completion_tokens": 58,
"total_tokens": 82
}
}