# Invisible Character Cleaner — 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://invisible-char-clean.yeezhan.com
Skill definition: https://invisible-char-clean.yeezhan.com/skill/SKILL.md
API documentation: https://invisible-char-clean.yeezhan.com/api/docs

## What this tool does
Strip zero-width chars, BOM and soft hyphens; turn smart quotes and full-width spaces into plain ASCII.

## Typical user problems
- Copy-pasted text carries zero-width joiners, BOMs and curly quotes that break regexes, diffing, compilers and LLM prompts — none of them visible in an editor.

## Parameters
- normalize_spaces: enum, optional. 空格归一化

## 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