ASCII-Cleantext

Cleans text from special characters, zero-width characters and converts to pure ASCII

Why is ASCII text cleaning needed?

This tool removes invisible and problematic characters from texts that can cause errors in data processing, APIs or import/export operations:

Zero-Width Characters: Invisible Unicode characters (U+200B, U+FEFF, etc.) that falsify text comparisons
Typographic Characters: Replaces "quotation marks", dashes – and other variants with ASCII equivalents
Unicode Normalization: Optionally converts special characters (é, ñ, ä) to ASCII (e, n, a/ae)
Whitespace Cleaning: Normalizes NBSP, thin spaces and other whitespace variants

Use cases: Database import, CSV/JSON processing, email texts, API requests, code snippets, legacy systems (ASCII-only support)

Input & Highlights

Preview with highlights (problem areas in yellow):

Cleaned ASCII Text

Removes zero-width characters, replaces typographic variants, normalizes NBSP→SPACE, optionally removes/converts diacritics and converts to pure ASCII.