Free tools for cold email agencies
These free tools are small calculators, generators and checkers for outbound work. Each one runs in your browser and shows the result as you type, with no sign-up and no email gate. Use them to check a draft, plan a campaign or put a number on your replies.
All free tools
What the tools help with
Checkers
Paste a draft or a subject line and see what to fix before it goes to a list.
Generators
Starting points for cold emails, replies and out-of-office messages that you edit into your own words.
Calculators
Turn your own numbers, like replies and cost per lead, into a figure you can plan around.
Where to go next
A tool gives you a quick answer. For the full setup behind it, follow the step-by-step cold email guides, and for examples and timing advice, read the Revbound cold email blog.
Once the replies come in, Revbound handles them. It collects replies from Instantly, Smartlead, Email Bison, PlusVibe, SendKit and ArcSend in one inbox, sorts them with AI, and books the meeting on Cal.com or Google Calendar when a lead picks a time. If you are comparing reply tools, see Revbound as a Master Inbox alternative.
| Section | Format | Use it when |
|---|---|---|
| Blog | Explainers with examples and templates | You want the reasoning and copy to adapt |
| Guides | Numbered steps for one setup | You know the goal and want the clicks |
| Free tools | Calculators, generators and checkers in the browser | You need a draft or a number right now |
Questions about the tools
Are the Revbound tools free?
Yes. Every tool on the Revbound tools page is free to use, with no account, no sign-up and no email address needed to see the result.
Can I use the results in my own campaigns?
Yes. Copy any draft, subject line or number from a Revbound tool into your sequencer or your plan. Edit the wording so it sounds like your team before you send it.
Do the tools work on a phone?
Yes. Every Revbound tool page is built to work on a phone screen as well as a desktop browser, with the inputs and the result on the same page.
What is Revbound?
Revbound is a reply inbox for cold email agencies. It pulls replies from your sending tools into one inbox, sorts them with AI, answers interested leads with free times from your calendar and books the meeting.
How much does Revbound cost after the free tools?
The free tools stay free. Revbound itself costs $49, $99 or $149 a month depending on the plan, with the AI included, and starts with a 3-day free trial.
From a number to booked meetings
Connect a sequencer and a calendar. Three days free, every feature on.