Make any draft sound like you.
NEO is a free writing editor that flags machine-sounding phrases, learns the fingerprint of your real writing, and helps you edit AI drafts into your own voice. Everything happens in your browser — your text never leaves your device.
Open the editor — free, no signup
100% localNo accountSuggestions, never silent rewrites
What NEO does, step by step
1. Teach NEO your voice (2 minutes, once)
Paste 150+ words of writing that's genuinely yours — old emails, posts, essays. NEO measures how you actually write: sentence length, rhythm, contraction habits, punctuation, vocabulary variety. From then on, every draft is checked against your standard instead of a generic one. The profile is stored only on your device.
2. Paste your draft
An AI draft, a blog post, an email — anything. Your work autosaves locally from the first keystroke, so an accidental tab close never loses it.
3. See what's flagged — and why
NEO highlights the words that make writing feel machine-made: "delve," "leverage," "seamless," "in the realm of," and dozens more. Every flag comes with plain alternatives — click to replace, or dismiss terms you actually like. Code and URLs are never touched.
4. Set your audience
General, Academic, or Casual. This changes which terms get flagged and what counts as a comfortable sentence length — formal connectors are perfectly fine in academic prose.
5. Run a Natural pass
One click sweeps the whole draft at the boldness you choose. It swaps flagged terms for varied plain alternatives and splits overlong sentences — only at natural grammatical points, never mid-thought, and never by injecting canned filler phrases. The diff opens automatically so you see every change.
6. Check the voice match
NEO compares your draft's numbers against your own profile — "you: 14.2 words avg · draft: 23.8" — and says plainly when something is unlike your samples. It measures numbers, not meaning: a compass, not a judge.
7. Review every change, then ship it
A word-by-word diff shows exactly what changed. Restore the original in one click if you don't like where it went. What leaves NEO is writing you've seen, shaped, and approved.
Why it's private
The editor runs entirely in your browser. No accounts, no servers, no uploads — your drafts and your voice profile live on your device and nowhere else. That's not a setting; it's how the tool is built.