← All tools

AI text cleanup · Free · In your browser

Em Dash Remover

Paste text and strip em dashes, smart quotes, and invisible watermark characters in one pass - grammar-aware, so it swaps dashes for the right punctuation instead of blindly deleting them.

An em dash remover is a free tool that replaces or deletes em dashes (-) and other AI-tell punctuation, turning machine-formatted text back into clean, natural prose.

Cleanup rules ▾

Paste your draft

Drop an AI draft on the desk - or pull a sample manuscript:

0 words · 0 chars

cut removed kept added

- / 100

AI-tell score

Paste text to scan

Margin notes

    🔒 Runs entirely in your browser - open DevTools → Network and you'll see zero requests. Works offline.

    No upload No signup Works offline Network requests this session: 0

    The short version

    How to use it

    1. Type or paste your text into the box (or try an example).
    2. Choose how dashes are replaced and which marks to clean.
    3. Copy the cleaned result, or open the diff to review each change.

    Private by design

    There is no server and no upload. Everything runs with plain JavaScript on your device, so you can safely work with confidential or unpublished text. Open your browser's DevTools Network tab while you use it and you'll see zero requests - and it keeps working with your connection turned off.

    Related reading

    In the margin

    Frequently asked questions

    Does removing em dashes bypass AI detection? +

    No - and that isn’t the point. Swapping punctuation doesn’t reliably fool detectors, and chasing that is a losing game. This tool is for editing quality: it removes the mechanical em-dash habit so your writing reads like a person wrote it.

    What does it do besides em dashes? +

    It also normalizes smart/curly quotes to straight ones (or vice versa), strips zero-width and other invisible characters, and flags common AI tells so you can fix cadence and clichés by hand.

    Is my text uploaded or stored anywhere? +

    No. Everything runs in your browser with plain JavaScript - your text is never uploaded, stored, or logged. Open your browser’s DevTools Network tab while you use it and you’ll see zero requests. The tool also works offline.

    Related tools

    🔬Before/After Diff ViewerCompare original vs cleaned text with per-change accept/reject.👻Invisible Character InspectorSee and strip hidden zero-width, watermark and bidi characters.🫀Human-Voice / AI-Tell ReportFlag cadence, clichés and patterns that make a draft read like AI.“”Straight-to-Curly QuotesAdd correct curly quotes, apostrophes and proper dashes for publishing.

    Margin note

    Every tool here runs 100% in your browser. Open DevTools → Network while you use one and you'll see zero requests - your text never leaves your device. Prefer the deep dives? Read the writing on Penluma.