# CSV to JSON / JSON to CSV — yeezhan.com
> One-time pay-per-task emergency tool to make your file ready for submission.
> No credits, no balance. One payment unlocks one task result, valid for 24 hours.

Tool domain: https://csv-json.yeezhan.com
Skill definition: https://csv-json.yeezhan.com/skill/SKILL.md
API documentation: https://csv-json.yeezhan.com/api/docs

## What this tool does
Convert between CSV and JSON — proper header handling, no silent data loss.

## Typical user problems
- Data lives in CSV but your API needs JSON, or vice versa. Spreadsheet export produces CSV; your code imports JSON. Convert properly with header handling.

## Parameters
- direction: enum, required. 转换方向
- delimiter: enum, optional. CSV 分隔符

## Pricing
- Watermarked preview: free, no login required
- Final clean output: $0.99 one-time per task
- Require login (email/phone OTP) to complete payment
- Result available for download 24 hours after payment

## Limitations
- Max input 20 MB
- Flat objects only (nested JSON flattened to dot notation)