Voice · Free · In your browser
Build a private style profile from your own writing, then flag where a new draft stops sounding like you - all stored locally on your device.
A voice/style memory learns the measurable habits of your writing (sentence length, favorite words, punctuation) and compares new drafts against them.
Paste a few things you actually wrote to start your fingerprint.
🔒 Stored only in this browser (IndexedDB). Nothing is uploaded.
No voice profile yet.
A style check needs to know how you write. Build a profile from a few of your own samples, or try a demo to see the whole loop first.
Paste a draft - or try a sample. We check it against your saved voice.
0 words · 0 sentences
Sounds-like-you
Paste a draft to scan
Your voice
You vs. this draft
Recent match scores
🔒 Your samples and drafts never leave your browser - profiles live in IndexedDB on this device. Open DevTools → Network and you'll see zero requests. Works offline.
Privacy receipt
0 network requests made for profiling. Your data lives only in this browser's IndexedDB - export it for a backup, or wipe it here at any time.
The short version
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.
In the margin
A profile of the measurable habits that make your writing yours - typical sentence length, vocabulary, punctuation rhythm. Comparing a draft to it shows where the text drifts, which is handy for spotting AI-inserted or ghost-edited passages.
Entirely in your browser’s local storage on this device. Nothing is uploaded, and you can clear it at any time.
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.
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.