Check and score every message
before you send
Mail. Messages. No AI slop.
Presend is a gate, not an assistant. It stands in front of Send in Gmail, Outlook, Slack, Mail and Messages and stops the ones you'd regret — leaked secrets, wrong recipients, AI-slop, off-voice tone — then rewrites in your voice. Add any check you want in plain English. Rules run locally.
This is Presend's real rule engine, the same code the extension runs. Nothing you type here leaves this page.
Trusted by professionals at
ShopifyShopifyGitHub Actions
for your email and messages.
Every message runs your checks before it leaves, the way every commit runs CI: built-in rules, a hard send-guard, approvals, rewrites in your voice, and any check you write yourself. In Gmail, Outlook, Slack and the rest.
Pre-Send Safety Net
Local rules catch leaked secrets & PII, wrong recipients, broken links, and AI-slop the moment before you hit send — zero AI cost, zero latency.
Send-Guard
Real risks don't just get flagged — the send is blocked until you confirm. A gate, not a warning banner you'll dismiss by day two.
Voice & Slop Scoring
AI scores your email 0-100 for authentic voice and AI-generated content, so you catch the drafts that read like a machine wrote them.
Voice-Preserving Rewrite
One click strips AI-slop while keeping your voice — More Me, Shorter, Less AI. Your email stops sounding like ChatGPT, not more like it.
Your Own Checks
Describe any check in plain English — 'don't let me sound passive-aggressive', 'always include a next step'. It runs at send time, only on your mail.
Custom Actions
Build multi-step check workflows with webhooks, conditions, MCP connectors, and AI prompts. Like GitHub Actions, but for email policy.
Local & Private
Layer-1 rules run in your browser. No Gmail API scopes means no restricted-scope OAuth and no annual security audit — and your text never leaves without your key.
Analytics Dashboard
Track check volume, rewrite rates, voice scores, and risky sends caught over time. All data persisted — no more restarting from zero.
Built for every email moment.
Pre-Send Safety Net
Voice Scoring
Scored against your own sent messages, not a generic model. One click rewrites it back into your voice.
Send-Guard
Blocks sendYour Own Checks
Custom Actions
NEWAnalytics Dashboard
NEWThe average professional sends 40 emails a day.
Each one is a reputation decision.
Presend doesn't just catch typos. It catches the email that leaks your client's data, the reply-all to 500 people, the draft that sounds like ChatGPT wrote it. Every. Single. Time.
Presend in a minute.
AI-sounding lines, leaked keys, missing attachments and messages that need a manager's yes: caught before Send, then fixed in your own voice.
Three steps.
Zero friction.
Install the Extension
Add Presend to Chrome in one click. It works silently inside Gmail and Outlook — no new app to learn.
Write Your Email
Compose as usual. Presend watches in the background and runs 10+ checks the moment you're about to send.
Review & Send Perfectly
See your voice score, slop score, and any findings. One-click rewrite to fix issues. Send with confidence.
Wall of Love
From leaked API keys to accidental reply-alls — hear how Presend saved their day.
“Presend caught a leaked API key in an email I was about to send to a client. That alone justified the install.”
Sarah Chen
Engineering Lead, Fintech Startup
“The voice scoring is wild. I type an email, it tells me 'this sounds 40% like AI slop' and I'm like... fair enough. The rewrite button actually fixes it.”
Marcus Rivera
VP Sales, SaaS Company
“I used to spend 5 minutes re-reading every important email. Now I just hit send and Presend catches everything before it goes out.”
Emily Watson
Account Executive, Enterprise
“I wrote a personal check in plain English — 'never let me send without a clear next step'. It's caught me a dozen times. Feels custom-built for how I write.”
David Kim
Product Manager, Tech Co
“We rolled it out to the whole sales team. The custom rules feature lets us enforce compliance — no PII in emails, mandatory disclaimers. Saves us from legal nightmares.”
James Liu
Director of Sales Ops
“It's not another AI assistant trying to write my emails. It just quietly stops the bad ones from going out. That's exactly what I wanted and nothing more.”
Aisha Patel
Founder & CEO
“The send-guard literally blocked me from firing off a reply with a client's private data in it. It made me confirm first. That one save paid for the year.”
Tom Bradley
Customer Success Lead
“I accidentally CC'd 'all@company' on a sensitive email once. Never again. Presend's external recipient warning has saved me at least 5 times already.”
Rachel Nguyen
HR Director
Simple pricing.
No surprises.
Free
Perfect for trying Presend
- 10 AI checks / month
- Unlimited local rule checks
- Voice & slop scoring
- Every compose box on the web
Pro
For professionals who send daily
- Unlimited pre-send checks
- All built-in rules
- Voice & slop scoring
- Voice-preserving rewrites
- Your own checks (plain English)
- Send-guard (block on risk)
- BYOK (bring your own key)
- Gmail, Outlook, Slack, LinkedIn, X
- Personal analytics
Organisation
For teams that need shared rules
- Everything in Pro
- Org-wide custom rules
- Custom Actions pipeline
- Webhook integrations
- Full analytics dashboard
- Cloud-persisted data
- Priority support
- SSO (coming soon)
Questions?
Answers.
Presend processes email content locally in your browser and via secure API calls. We never store, log, or train on your email content. Body text is hashed for analytics — the actual content is never saved on our servers.
Email intelligence
insights & guides.
Stop sending emails you'll regret.
Presend stands in the compose window and stops the sends you'd regret — leaked secrets, wrong recipients, AI-slop — blocks the risky ones until you confirm, and rewrites in your voice. All from a tiny browser extension.