AI Text Cleaner
Max 256 KB · Cleans automatically as you type
AI writing tools have a handful of tells: the overuse of the em-dash, curly “smart” quotes where a plain document would use straight ones, a short list of stock phrases that show up in nearly every response, and, less visibly, stray Unicode characters that don’t render at all but are sometimes embedded as a fingerprint. AI Text Cleaner targets exactly these four things and nothing else — it does not rewrite sentences, change wording, or attempt to detect whether text was AI-written in the first place.
Each of the four operations below is independent and can be switched off:
- Em-dashes. Every em-dash is replaced with either a period or a comma, chosen by looking at the word right after it: a capitalized word reads as a new sentence starting (period), anything else reads as the current clause continuing (comma).
- Curly quotes. Typographic “smart” quotes and apostrophes are converted to their plain, straight equivalents — the kind a fixed-width font or an older system expects.
- Filler phrases. A short, deliberately curated list of stock openers and closers — “Certainly!”, “I hope this helps!”, “Feel free to…”, “It’s important to note that…”, “In conclusion,” and a few others — is stripped out. The list lives as ordinary data in the tool’s source rather than being hardcoded into the cleaning logic, specifically so more phrases can be added later without touching how removal works.
- Invisible characters. Zero-width spaces, joiners, byte-order marks, and the Unicode “tag” character range are deleted outright. None of these render as anything visible, so removing them can’t alter what the text says — only what’s silently embedded inside it.
Paste text into the input field on the left; the cleaned version appears on the right as you type, debounced briefly so it doesn’t reprocess on every keystroke. Because the filler-phrase list favors precision over completeness, a phrase that isn’t on the list will be left alone rather than guessed at — false positives are worse than a missed phrase for a tool meant to run unattended on pasted text.
Examples
- Cleaning up a blog draft written with an AI writing assistant before publishing it, so it reads as plain prose rather than an obvious machine-generated block.
- Stripping filler phrases and stray formatting from an AI-drafted email reply before sending it to a client.
- Removing hidden zero-width characters from AI-generated text pasted into a CMS or spreadsheet, where they can otherwise interfere with search, sorting, or diffing.
Frequently asked questions
Is my text sent to a server?
What counts as a "filler phrase"?
Certainly!, I hope this helps!, and In conclusion,. The list is intentionally short and precise rather than exhaustive, so it won't misfire on a sentence that happens to share a few words with one of these phrases.