Data format toolkit
Reshape, validate & compare
without leaving the tab.
Convert, format, validate and diff JSON, CSV and XML — entirely in your browser. Nothing is uploaded.
Pricing
Free for one-off conversions. Pro for daily use.
Occasional use is free, forever. If you're converting files at work every day, Pro pays for itself in the first ten minutes you save.
Free
For occasional, one-off conversions.
- Convert, validate, format, diff, JSONPath
- Files up to 256 KB
- One file at a time
- Runs entirely in-browser
Pro
For daily conversions and larger files.
- Everything in Free
- Files up to 25 MB
- Batch upload — convert 100 files at once
- No ads, saved presets
- Priority support
API
For scripts, pipelines and internal tools.
- Everything in Pro
- REST API with your own key
- 10,000 conversions / month
- Webhook + CLI available
- Team seats (add-on)
API
Convert from your scripts and pipelines.
Same conversions as the browser tool, available over a simple REST API. Ideal for backends, CLIs, and internal tools.
Recast API — early access
The API is in private beta. You’ll get a personal key, 10,000 conversions per month, support for all six modes (JSON ↔ CSV, JSON ↔ XML, Flatten / Unflatten), and webhooks.
POST /v1/convert
Authorization: Bearer rk_live_••••••••
Content-Type: application/json
{
"mode": "json2csv",
"input": "[{\"id\":1,\"name\":\"Ada\"}]",
"options": { "delimiter": ",", "excel_bom": true }
}
Planned endpoints: /v1/convert,
/v1/me,
/v1/usage