Data

JSON ↔ YAML ↔ CSV Converter

Convert between JSON, YAML, and CSV formats. YAML parsing is powered by js-yaml 4.1.0 — bundled locally, works offline.

● LOCAL ● NO NETWORK ● js-yaml 4.1.0

From

Input

Output

Need to compare two JSON structures directly? Open JSON Diff. Generating TypeScript definitions from JSON payload? Use JSON → TypeScript.

About this tool

What it does

Converts data between JSON, YAML, and CSV formats. JSON parsing uses the browser's native JSON.parse(). YAML parsing and generation uses js-yaml 4.1.0, which is bundled directly in QuikTech — no CDN request is made and the tool works offline. CSV conversion assumes a flat array-of-objects structure.

No data leaves your browser. All conversion runs locally. Input is saved in localStorage for convenience.

YAML enginejs-yaml 4.1.0 (bundled, no CDN)

JSON engineJSON.parse / JSON.stringify (browser native)

Network transferNone

Limitations

CSV: Assumes a flat array of objects with scalar values. Nested objects/arrays are stringified. Type information (numbers become strings) is lost when round-tripping through CSV.
YAML multi-document: Only the first document is converted when the YAML input contains multiple documents separated by ---.