# Number Base Converter — 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://number-base.yeezhan.com
Skill definition: https://number-base.yeezhan.com/skill/SKILL.md
API documentation: https://number-base.yeezhan.com/api/docs

## What this tool does
Convert between decimal, hex, binary and octal.

## Typical user problems
- Quick base conversion for debugging.

## Parameters
- from_base: enum, required. 源进制
- value: string, required. 数值

## 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