Zero-Width Space Steganography, encodes/decodes hidden messages as non printable/readable characters.

PromptShield sanitizer that applies safe, deterministic fixes to text based on detected prompt-injection threats such as invisible characters, markdown smuggling, and BOM artifacts.

An asciidoctor.js treeprocessor extension that injects zero-width spaces into inline monospace content with punctuation, to give renderers opportunities to create line breaks.

Rapidly down-converts AsciiDoc to Markdown. Often used to prepare an AsciiDoc README for npm packaging.

Convert Khmer text between legacy font encodings (Limon, ABC, Baidok, ...) and Khmer Unicode.

日本語(CJK)のタイトルを自然な位置で折り返す。@vercel/og や Satori に1行で寄生する wrap ユーティリティ＋フォント自動サブセットOGP生成。

Remove AI-provider watermarks from text, images, and documents. Powered by Rust.

ZWT (Zero Width Text) encoder and decoder

글·문서에 눈에 보이지 않는 문자(제로폭·태그·방향제어·PUA)가 숨어 있는지 검사합니다. 문체로 AI를 추정하지 않고 파일에 실제로 있는 코드포인트만 봅니다. 클로드 코드 스킬.

Zero-width character steganography library for JavaScript and TypeScript.

AI safety & input validation for LLM applications. Protect against prompt injection, jailbreaks, PII leaks, and credential exposure with 225+ detection patterns.

MCP server: fast unicode/whitespace/encoding cleanup before LLM input. NFKC, zero-width strip, control strip, smart-punctuation conversion, emoji strip. Built for Claude Desktop, Cursor, Cline, Windsurf, and Zed.

Sanitize text crossing the LLM trust boundary: Unicode prompt-injection defense, NFKC normalization, credential redaction, reasoning-tag stripping. Stream-aware, zero deps, ESM-first.

Renderer-agnostic wrappable text following the Unicode Line Breaking Algorithm

CLI tool that diffs what humans see vs what AI agents process

Find and remove hidden Unicode watermark carriers from text files. Streams any size, preserves every byte it does not delete, never touches visible text.

Detect and remove invisible Unicode characters: zero-width spaces, bidi controls, variation selectors, tag characters. Knows which ones are safe to strip and which carry meaning.

Embed hidden UTF-8 strings inside any text using invisible Unicode characters. Two codecs: variation-selector (Invisible) and zero-width 2-bit packed (ZeroWidth).

Encodes and decodes bytes to a zero width space string.

a fast, non-dependent tool/library to detect, decode, and remove hidden ai watermarks, steganography, invisible characters, homoglyphs, and even byte anomalies from any text.