Unicode Spoofing Checker

Substituting a letter with an identical-looking character from another alphabet. Cyrillic а, е, о and р are visually indistinguishable from Latin a, e, o and p in most fonts, so a domain or filename can look exactly right while pointing somewhere else entirely. This flags every character that is not what it appears to be.

Usually because of characters a word processor inserted silently: curly quotes, en and em dashes, non-breaking spaces, or a soft hyphen. They are legitimate but frequently unwanted in code, URLs, CSV files and passwords, where they cause failures that are effectively invisible on screen.

Domain names and links in an email you were not expecting, anything pasted into a terminal, and text arriving from an unknown source. Also invisible characters — zero-width spaces and joiners — which are a common way to slip content past a naive filter and are impossible to see by looking.

Yes, because the file never leaves your device. The password is applied inside the browser tab and nothing crosses the internet, so neither the document nor the password can be seen by anyone else.

No. It removes a password only when you type the correct one. It is meant for your own files that you open often, not for getting into documents you are not allowed to read.

Yes. Every security tool on the site is free, with no account, no trial and no limit on use. Nothing is added to your document apart from the change you asked for.

No. The work happens inside this browser tab, and nothing is uploaded. That is the whole point for sensitive papers: a redacted or protected file should not pass through a stranger’s server first.

Sign PDF places an image of your signature on the page, much like signing a printout. Many everyday agreements accept this, but some official filings need a certified digital signature, so check what the other party requires.