# CaptionCleaner
> Clean, format, and audit social media captions in real-time. An 18-step client-side pipeline that strips AI artifacts, invisible characters, smart quotes, and broken formatting. 100% private — no data ever leaves your browser.

## Core
- [Caption Cleaner](https://captioncleaner.devbuildtool.com/): Real-time 18-step caption cleaning engine with platform-aware formatting, hashtag audit, and truncation preview
- [About](https://captioncleaner.devbuildtool.com/about): Project background, data privacy, and GDPR compliance

## Platform Guides
- [Instagram](https://captioncleaner.devbuildtool.com/help/instagram): Paragraph spacing (Braille Pattern Blank fix), 2,200 character limit, hashtag optimization (3–5 recommended), non-clickable links
- [Twitter/X](https://captioncleaner.devbuildtool.com/help/twitter): 280-character limit, link shortening (23 chars via t.co), emoji counting (2 chars each), hashtag limits
- [LinkedIn](https://captioncleaner.devbuildtool.com/help/linkedin): 3,000-character allowance, professional long-form posts, preview truncation (210 mobile / 300 desktop), hashtag etiquette
- [TikTok](https://captioncleaner.devbuildtool.com/help/tiktok): 4,000-character descriptions, 90-character overlay truncation, SEO keyword strategy, hashtag limits

## All Cleaning Steps
- BOM Removal: Strips Byte Order Marks (U+FEFF)
- AI Artifact Removal: Removes zero-width spaces (U+200B), word joiners (U+2060), directional markers, soft hyphens from ChatGPT, Claude, and Gemini
- Non-Breaking Space Normalization: Converts U+00A0, U+2007, U+202F to standard spaces
- Smart Quotes Normalization: Curly quotes to straight quotes (toggleable)
- Dash Normalization: En-dash/em-dash to hyphens (toggleable)
- Ellipsis Normalization: Typographic ellipsis to three periods
- Trailing Whitespace Removal: Prevents Instagram paragraph collapse
- Leading Whitespace Removal: Cleans indentation artifacts
- Multiple Space Collapse: Condenses extra spaces (preserves double-space after punctuation optionally)
- Tab to Space Conversion: Tabs become single spaces
- Excessive Blank Line Collapse: Limits consecutive blank lines (configurable: 1 or 2)
- Platform Line Break Injection: Invisible Braille blanks (U+2800) for Instagram/TikTok (toggleable method: braille/dot/zwsp)
- Hashtag Detection & Validation: Audits for broken chars, duplicates, emoji adjacency
- Hashtag Count Warnings: Platform-specific optimal ranges
- Hashtag Relocation: Moves all hashtags to bottom (off by default)
- Emoji Spacing Check: Ensures proper spacing around emojis
- URL Detection & Flagging: Platform-specific clickability warnings
- Character Count & Limits: Platform-aware counting with truncation preview

## Blog
- [AI Text Cleaner for Instagram](https://captioncleaner.devbuildtool.com/blog/ai-text-cleaner-instagram): Remove ChatGPT, Claude, and Gemini invisible artifacts from captions
- [Copy Paste Cleaner for Social Media](https://captioncleaner.devbuildtool.com/blog/copy-paste-cleaner-social-media): Strip hidden formatting from Word, ChatGPT, and Google Docs
- [Instagram Caption Copied from Word](https://captioncleaner.devbuildtool.com/blog/instagram-caption-copied-word): Fix broken Word caption formatting (curly quotes, nbsp, em-dashes)
- [Remove Smart Quotes from Instagram Captions](https://captioncleaner.devbuildtool.com/blog/remove-smart-quotes-instagram): Fix curly quote issues that break formatting
- [Clean Up Instagram Caption](https://captioncleaner.devbuildtool.com/blog/clean-up-instagram-caption): One-click removal of hidden characters and spacing fixes
- [Invisible Characters Instagram](https://captioncleaner.devbuildtool.com/blog/invisible-characters-instagram): Why paragraph breaks disappear and how Braille blanks fix it
- [Caption Formatting Guide](https://captioncleaner.devbuildtool.com/blog/caption-formatting-guide): Character limits and formatting best practices across all platforms

## FAQ
- [Frequently Asked Questions](https://captioncleaner.devbuildtool.com/faq): Paragraph breaks, AI artifacts, character counts, URL behavior, and privacy

## Technical
- [llms-full.txt](https://captioncleaner.devbuildtool.com/llms-full.txt): Full technical documentation with architecture, pipeline internals, platform config, and implementation details
- [Robots](https://captioncleaner.devbuildtool.com/robots.txt): Crawling rules