Use the free Remove Invisible Characters below: your data never leaves your browser — all work happens on your device, and nothing is uploaded to any server.
The characters you cannot see
Some characters are invisible by design. A zero-width space is a real character that takes up no width. A soft hyphen only appears when a word breaks across lines. A byte-order mark sits at the start of a file and never displays. Bidirectional control characters steer text direction without showing anything themselves. You cannot see any of them, but software can, and they cause surprising failures.
Invisible characters arrive through copying and pasting. Text copied from a web page, a PDF, a chat app or a word processor often carries hidden characters with it. They also arrive through files saved in different encodings, and through text generated by tools that insert markers for their own bookkeeping.
Problems they cause
An invisible character inside a word breaks search: the word looks right but does not match. Inside a password or a code it causes silent failures, because the typed version and the pasted version differ by a character nobody can see. Inside a URL or an email address it breaks the link. Inside a name it creates a duplicate record that looks identical to the original.
Writers hit the problem when a document behaves oddly: a word refuses to spellcheck, a find-and-replace misses an obvious match, or a text comparison reports a difference between two lines that look the same. Developers hit it when a string comparison fails for no visible reason, or when a build breaks on a file that looks clean.
How this tool works
Paste your text and press Clean invisible characters. The tool removes zero-width spaces and joiners, soft hyphens, byte-order marks, bidirectional controls, word joiners, and control characters that have no business being in ordinary text. Ordinary spaces, line breaks and tabs are kept, because those are visible formatting you probably want.
Just as important, the tool reports what it found. It lists each invisible character by its Unicode code point, like U+200B, together with how many times it appeared. That turns a mystery into a diagnosis: you learn exactly which hidden character was in your text and how often, which helps you find the source.
Common uses
Use it on any text you copied from somewhere else before you paste it into a final document, a form, a code editor or a database. Use it when a password or a code copied from a message does not work even though it looks right. Use it when two strings look identical but a computer insists they differ.
Editors use it to clean manuscripts assembled from many sources. Support teams use it to clean text a customer pasted into a ticket. Students use it when an essay copied from notes behaves strangely in a plagiarism checker or a submission form.
What it keeps and what it removes
The tool keeps normal spaces, tabs and line breaks, and all visible letters, digits and punctuation. It removes only characters that are invisible or control characters: the zero-width family, direction controls, the soft hyphen, the byte-order mark and the old ASCII control codes. Nothing visible is ever deleted, so the cleaned text reads exactly like the original.
One caution: a soft hyphen is sometimes intentional in typeset text, where it marks a legal break point inside a long word. If you are preparing text for professional typesetting and you want those break points, clean a copy rather than the original.
Tips
If the same invisible character keeps appearing, find its source. Text copied from a particular app or website often carries the same marker every time. Cleaning at the source, or pasting as plain text, saves repeated cleanup later.
For passwords and codes, the safest habit is to type them by hand rather than pasting. When pasting is unavoidable, run the text through this cleaner first and check the report. A single reported character explains a failure that could otherwise waste a long time.