Modern development pipelines continuously interchange configuration files, database exports, and spreadsheet data across JSON, YAML, and CSV. OmniTool Hub provides instant 3-way bidirectional conversion with smart schema detection, nested object flattening, and syntax highlighting.
Key Property Parameters & Specifications
| Data Structure | JSON Representation | YAML Syntax |
|---|---|---|
| Key-Value Object | `{"name": "Dev"}` | `name: Dev` |
| Array / List | `["apple", "banana"]` | `- apple\n- banana` |
| Nested Objects | `{"geo": {"lat": 40}}` | `geo:\n lat: 40` |
| Comments Support | Not supported natively | Supported with `#` |
Implementation Guide & Technical Reference
Flattening Nested Keys for CSV Export
function flattenObject(obj, prefix = '') {
return Object.keys(obj).reduce((acc, k) => {
const pre = prefix.length ? prefix + '.' : '';
if (typeof obj[k] === 'object' && obj[k] !== null && !Array.isArray(obj[k])) {
Object.assign(acc, flattenObject(obj[k], pre + k));
} else {
acc[pre + k] = obj[k];
}
return acc;
}, {});
}Dot-notation column flattening.
Frequently Asked Questions (FAQ)
How does it handle nested JSON objects when converting to CSV?
It automatically flattens nested objects into dot-notation columns (e.g. `user.address.city`) so no relational hierarchy is lost.
Can I choose custom delimiters for CSV output?
Yes. You can select Commas (`,`), Semicolons (`;`), Tabs (`\t`), or Pipes (`|`) for TSV and international CSV compatibility.
Does it validate YAML indentation and syntax?
Yes. Built-in linter diagnostics pinpoint syntax errors and improper indentation levels with line number highlights.
Is there a file size limit?
Because execution runs in local browser memory, datasets containing tens of thousands of rows parse smoothly.