AI Text Cleaner is a browser-based tool for removing hidden characters, unusual whitespace, and unwanted Markdown formatting from text drafts. Its primary function is to scan pasted content for invisible Unicode codepoints and formatting residue commonly found in AI-generated text from writing assistants such as ChatGPT, Claude, and Gemini. The tool prepares raw drafts for publishing by cleaning them into plain, standardized text that can be pasted into content management systems, email marketing platforms, and internal wikis without layout disruption. The tool operates entirely in the client-side browser during free scans, meaning draft text is never uploaded to external servers. It detects over 60 hidden Unicode codepoints, including zero-width spaces, narrow no-break spaces (U+202F), byte order marks, zero-width joiners, and non-breaking spaces. It also strips Markdown markers such as asterisks, header hashes, blockquotes, and list indicators. The free tier handles invisible character removal and Markdown stripping locally, while the optional Pro tier provides rewriting functionality to address statistical sampling traces in the text. A 50 percent discount is offered on annual Pro plans. The workflow consists of three steps: pasting raw text into the workspace, reviewing detailed counts of detected invisible characters and formatting markers, and then cleaning the text or running a rewrite. The tool provides granular character scanning without altering the original content until the user initiates the cleaning action. Users can access the tool at its dedicated website and use it for tasks such as standardizing spacing, removing markup debris, and ensuring copy meets publishing standards across various platforms.