Your comments should sound like you wrote them.
Voice Profile is the Pro feature that teaches HitReplAI your sentence rhythm, vocabulary, and default tone so post-aware rewrites stop sounding generic.
Start free. Upgrade to Pro for Voice Profile and unlimited comments.
The Problem
Generic AI can polish a sentence, but it usually erases the person behind it.
That is costly in comments. People remember a specific voice, not another smooth reply that could fit under any post.
Great insight! Distribution truly is the cornerstone of successful product strategy. The most innovative products without effective distribution channels simply cannot achieve their full market potential.
Nobody writes like that. Not me, not you, not anyone who sounds real.
Voice Profile extracts the patterns that make your comments recognizable.
The same draft. Two completely different people.
Draft: "I agree with your point about distribution being more important than the product."
Great insight! Distribution truly is the cornerstone of successful product strategy. The most innovative products without effective distribution channels simply cannot achieve their full market potential. Appreciate you sharing this perspective.
- ✗Starts with a compliment
- ✗Could be written by anyone
- ✗Sounds like LinkedIn PR
This is what happens when you skip distribution.
Shipped a product. Months went by. Thought it would market itself.
The thing about distribution — it's not a later problem. It's the problem.
- ✓Matches your sentence rhythm
- ✓Uses your vocabulary
- ✓Sounds like you wrote it
From early users
"The before/after blew me away. It actually captured how I write — short, direct, no buzzwords."
— Founder, 3k LinkedIn followers (name withheld until permission obtained)
Upgrade when the free workflow clicks
Includes Voice Profile. $9.99/mo or $69/yr.
Cancel anytime · 5 free comments/day on free tier — no card required to start
Eight signals. One fingerprint.
Most AI tools have one style. Voice Profile extracts yours. What each signal means in depth →
Sentence rhythm
Short and punchy vs. long and winding. Your default rhythm is an identity signal — it tells readers who you are before they read the words.
e.g. "It worked. Took 6 months. Mostly word of mouth." vs a flowing paragraph
Contractions
"you're" vs. "you are." Whether you use contractions consistently signals formality and where you're from.
e.g. "It's not a distribution problem" vs "It is not a distribution problem"
Formality level
Casual, professional, or the mixed register most practitioners naturally use. Always-formal reads corporate. Always-casual reads junior.
e.g. "Shipped 40 units. Distribution is hard, yo." vs "We achieved initial traction"
How you open
Direct, contextual, or question-based. Most people use 3–5 signature openers without realizing it.
e.g. "Distribution comes first." (direct) vs "Most founders optimize product first." (contextual)
Your actual phrases
The 3 sentence starters only you use consistently. "The thing about..." or "Worth noting:" or "This is what happens when..."
e.g. If you always open with "The thing about X is..." that opener appears in every enhanced comment.
Your word DNA
5 words only you reach for consistently. Not fancy — specific. "Shipped" instead of "launched." "Scrappy" instead of "lean."
e.g. If you write "shipped" in every post, the AI uses "shipped" — not "deployed" or "launched".
What to never say
Words and phrases that aren't in your vocabulary. "Leveraging synergies." "Cornerstone." If the AI uses a word you never use, it's not your voice.
e.g. If "game-changer" never appears in your writing, it won't appear in your enhanced comments.
How you break lines
One-liners vs. dense blocks vs. bullet-point style. Your default structure tells readers who you are before they read the content.
e.g. "Distribution is hard. Most founders skip it. They shouldn't." vs a 5-sentence block
The Extraction Process
3 steps. 2 minutes. Then your writing is locked in.
Click HitReplAI icon → My Voice tab → "+ Add voice profile"
Anything you've written on LinkedIn. Real comments you actually made.
3 seconds. Green dot confirms it's active. Done.
Here's what gets extracted from real posts:
{
"avg_sentence_length": "short",
"uses_contractions": true,
"formality": "casual",
"preferred_sentence_start": "direct",
"common_openers": ["This is", "The thing about", "Worth noting"],
"vocabulary_fingerprints": ["shipped", "founder", "scrappy", "real", "building"],
"avoid_patterns": ["game-changer", "leveraging"],
"paragraph_style": "one_liner"
}Your writing style is personal. We keep it that way.
Voice Profile is stored entirely in Chrome's sync storage on your device. We never see it.
hra_voice_profile lives in chrome.storage.sync. Never touches our servers.
Chrome's sync layer moves it between your machines. We're not in the middle.
Open popup, clear profile. Gone instantly. No database entry to delete.
We store exactly one thing server-side: whether your device ID has an active Pro subscription. Your writing fingerprint is not part of that.
Frequently asked questions
How many posts do I need to paste?▾
2 minimum, 5 maximum. More samples = better fingerprint. The system extracts patterns from what it has.
Does my writing profile get stored on your servers?▾
No. It lives in Chrome's built-in sync storage (chrome.storage.sync). We never receive it. Only your device ID and subscription status are on our servers.
Can I have different profiles for different topics?▾
Not yet. One profile per browser account. If you want to test a different style, you can clear and re-extract anytime.
What if I change how I write?▾
Clear the profile in the popup and extract again. Takes 3 seconds. Your new posts will be analyzed from scratch.
Start free. Upgrade when voice matters.
Use the extension first. Pro unlocks unlimited rewrites and Voice Profile when you want every comment to sound like you.
Add to Chrome — Free