Text Cleaner

Text that comes from elsewhere is rarely clean. Copied from a PDF it drags along double spaces and hard line breaks, from the web it brings HTML remnants and smart quotes, from foreign systems come invisible zero-width characters that nobody sees but that mess everything up. The text cleaner is the washing machine for exactly this junk.

The largest area is the cleaning operations. Collapse multiple spaces, remove extra blank lines, trim lines, strip HTML tags, throw out URLs, email addresses and phone numbers, remove special characters while keeping the umlauts. Each operation toggles individually, so you run exactly the cleaning your text needs and not one that throws away too much.

Typography is its own chapter. The cleaner corrects quotation marks into the German form, replaces hyphen sequences and three dots with the right characters and normalizes Unicode to the NFC form, so that identical-looking characters are also stored identically. Broken umlauts that arrived as ae, oe or ue can be converted back - especially useful for text from systems that disliked umlauts.

The invisible culprits get their own tool. Zero-width characters and other hidden control characters are removed, duplicate lines can be struck and lines sorted alphabetically. This is the kind of tidying you can barely manage by hand because you cannot even see the characters.

Find and replace goes beyond simple text replacement. Alongside normal replacing, the cleaner supports regular expressions, so you can also target patterns instead of fixed strings - all numbers, all bracketed expressions, all lines with a certain start. For anyone who knows regex, this is the fastest way through complex transformations.

Case is a dedicated area: all caps, all lowercase, capitalized sentence starts, or converted into programming styles like camelCase, snake_case and kebab-case. A diff view finally shows you what changed between input and result, so no cleaning secretly breaks something.

Everything runs in your browser; your text never leaves your device. No signup, no transmission, no data collection. Whether you clean an address list, declutter text from a PDF or knock a CSV column into shape - the text cleaner does in seconds what by hand would be half an hour of stubborn clicking.