ASCII Text Cleaner

The ASCII Text Cleaner takes messy or mixed-encoding text and strips it down to safe, portable ASCII. It removes or substitutes non-ASCII characters such as smart quotes, em dashes, accented letters, and emoji, fixes inconsistent line endings by normalizing them to a single convention, and collapses irregular whitespace like stray tabs, trailing spaces, and zero-width characters. The result is clean plain text that displays consistently across terminals, editors, and platforms.

Whitespace normalization is a core feature: the cleaner can trim trailing spaces that bloat files and confuse diffs, convert tabs to spaces or vice versa, and remove invisible characters that sneak in when copying from web pages or word processors. Line-ending normalization unifies CRLF and LF so the same text behaves identically on Windows, macOS, and Linux. Together these steps eliminate the subtle inconsistencies that make text fragile when shared.

This tool is a workhorse for developers pasting content into source files, writers preparing plain-text copy, and anyone who needs commit messages, configuration files, or ASCII art free of hidden Unicode. It is the natural companion to an ASCII Validator: where the validator detects problems, the cleaner resolves them. It also pairs with the ASCII Art Analyzer, since cleaning first yields accurate density and character-frequency measurements.

For best results, decide whether you want offending characters removed outright or transliterated to close ASCII equivalents (for example a curly quote becoming a straight quote), since each option suits different goals. Always review the output, because aggressive stripping can drop intentional content like non-English text. After cleaning, run the result through a validator to confirm nothing problematic remains.