Free
$0forever
- 5 drafts a day
- Free AI models
- Comments, replies and messages
- All tones and custom instructions
- Rewrite in Bangla
Sandbox Smartbot · Chrome extension
Reply on LinkedIn in seconds. In your voice.
One click drafts a thoughtful comment, reply or message based on what the other person actually said. You review it, tweak it if you like, and press Send.
Free: 5 drafts a day, no card needed. Nothing is ever posted or sent without you.
SK
Sarah KhanHead of People · now
Loved your post on trust. Do you also work with teams on this? We're growing fast and it's getting harder.
✎ Draft with Sandbox
Message to Sarah Khan
Thank you, Sarah. Yes, I do. Fast growth is exactly when trust gets tested. Would a short call next week help? I can share what's worked for teams at your stage.
FriendlyProfessionalShortFollow-up
Insert into LinkedIn
Show up in every conversation, without the hours
Replies are where relationships, clients and opportunities start. The Smartbot makes sure you never leave one hanging.
⚡
Seconds, not minutes
Click once and get a reply that picks up the exact point the person made. No more staring at an empty box.
💬
Comments and messages
Works on post comments, replies to comments on your own posts, and LinkedIn direct messages.
🎯
Sounds like you
Plain, warm, human language. No "Great post!", no robotic phrases. Correct capitals and punctuation every time.
🎚
Pick the tone
Friendly, professional, short, follow-up, polite decline or thank you. Or type what you want it to say.
🛡
You stay in control
It never posts, likes, sends or clicks by itself. You read every draft and press LinkedIn's own button.
🌍
Any language
It answers in the language of the conversation, and one tap rewrites it in Bangla.
How it works
Set up in two minutes.
Click into a box
Open any comment, reply or message box on LinkedIn. A small Draft with Sandbox button appears.
Get a draft
It reads the post or the conversation on your screen and writes a reply. Change the tone or ask for another version.
Insert and send
One tap puts it in the box. Edit if you like, then press LinkedIn's Post or Send.
Simple pricing
Start free. Upgrade when replying becomes part of your day.
Pro
$19/ month
- 50 drafts a day, enough for every comment and message
- Premium AI (Claude) for sharper, more natural drafts
- Everything in Free
- Email support
Premium
$39/ month
- Unlimited drafts (fair use, 300 a day)
- Premium AI (Claude)
- Everything in Pro
- Priority support on WhatsApp
Prices in US dollars, billed monthly by invoice. Upgrade from your account page; your plan switches on as soon as the invoice is paid. Cancel any time. Sandbox content-service clients get the Smartbot included.
Get it in two minutes
The extension is in early access, so it installs from a download instead of the Chrome Web Store for now.
1. Create your free account
- Sign in with LinkedIn. It only confirms who you are; Sandbox never posts for you.
- On your account page, press Create a connection key and copy it.
2. Add it to Chrome
- Download the extension (.zip) and unzip it (right-click → Extract All).
- Open
chrome://extensions, switch on Developer mode (top right), click Load unpacked and pick the unzipped folder. - Click the Sandbox icon in Chrome, paste your key and press Connect.
Questions
Is it safe for my LinkedIn account?
It only reads what's on your screen when you click the button, and writes a draft. It never posts, likes, sends, follows or clicks for you, so you stay within LinkedIn's rules.
Do you see my password?
No. You sign in with LinkedIn's official login, and the extension connects with a key you can remove at any time.
What happens when I hit the daily limit?
The extension tells you, and you can upgrade from your account page. Your allowance resets every day at midnight UTC.
Does it work on other browsers?
It works on Chrome and on Chromium browsers such as Edge and Brave that can load Chrome extensions.
Can it write in my voice?
It writes in plain, natural language and follows what you ask. Sandbox content-service clients also get drafts in their own brand voice.
How do I pay?
We email a Payoneer invoice in US dollars. Pay by card or bank transfer, and your plan switches on.