16 best email guessing tools: These guessers predict addresses

16 best email guessing tools: These guessers predict addresses

When you have little information to go off, it can be difficult to find—or predict—someone's email address. Luckily, many businesses use similar email formatting, allowing professional email addresses to be predicted.

Email guessing tools output a list of possible likely variations for getting in touch with an individual.

To help you find the right email guesser tool, we’ll cover the following:

  • What is an email guessing tool?
  • Common features of an email guesser
  • 3 best email guessing tools
  • 3 best email finders with email guessers built-in
  • 5 free email finder tools for generating leads
  • 5 sales management tools that help you find new prospects

To start, let’s cover what an email guesser is, what they do, why you could benefit from one, and how it’s different from other email finder tools.

What is an email guessing tool?

An email guessing tool—or email guesser—will determine potential email variations for a contact. Input a first name, last name, and domain into the email guesser tool, and it will output all potential email variations, based on common email patterns used by that—and other—companies.

There are a few different terms for an email guessing tool, including email guesser, email syntax checker, and email format checker. All of these tools serve the main function of predicting potential email address variations, allowing you to connect with prospects when you can’t authenticate their email address.

But there are a number of other email finding tools out there! To help you differentiate between them, we explain what each type of email finder tool is below:

  • Email finder: Find and collect valid email addresses when you input a professional’s name, job title, company, domain, and other identifying information.
  • Email extractor: Find and extract email addresses from website domains using an automated tool, saving these manual efforts.
  • Email checker: Verify and validate email addresses to check the authenticity of emails, increasing your email delivery and response rate.

Common features of an email guesser

The main feature of an email guessing tool is email guessing and prediction; the user will input a first name, last name, and domain, and the tool will predict potential email address variations. These tools commonly have a number of additional features that enhance the tools ability to accurately predict email addresses.

Below are some of the main features email guessing tools have:

  • Email guesser: Guesses potential professional and business email variations when given a first name, last name, and domain.
  • Domain email pattern lookup: Guesses potential email patterns that a company will use, and determine the most likely variation.
  • Misspelled domain detection: Detects potentially misspelled email addresses and suggests modifications to clean up your lead lists.
  • Syntax validation: Automatically detects and corrects syntax errors found in email addresses, ensuring your emails deliver properly.
  • Domain validation: Identify email addresses with inactive or invalid domains that are known for spam and abuse.

It’s important to note that many comprehensive email finder tools that have an email verifier of some kind do not have an email guessing tool. In most cases, any tool with an email verification tool does not use an email guesser, as it would be unnecessary if emails are validated when being collected.

If you want verified email addresses, see our comparison of the best email checker tools.

3 best email guessing tools

Email guessers predict potential email patterns, based on what a company or domain is currently using, or based on standard email formats used by businesses. The following are some of the best email guessing tools to help you predict email addresses of contacts you wish to connect with.

While the tools below are exclusively email guessing tools, there are some more comprehensive email finder tools that feature email guessing capabilities.

1. Email Address Guesser

Cost: Free

Availability: Web browser

The best thing about it: Easily find Gmail and iCloud email address formats

A browser tool that lets you input a first name, last name, and choose between Gmail or iCloud, and it will output potential email variations for that contact. Extremely easy to access and free to use.

2. Ads for Carts Email Guesser Tool

Cost: Free

Availability: Web browser

The best thing about it: Free to use browser tool that lets you get potential email variations in seconds

This browser tool makes it extremely easy to guess prospect email addresses. Simply input a person's first name, last name, and company domain. The tool will output potential variations that you can then copy and use as part of your outreach.

3. GitHub Cheetar Email Guesser

Cost: Free

Availability: Software

The best thing about it: Python-tool that generates and checks potential email address variations

A python-based tool that will generate and validate email addresses according to data input to the system, such as a name, birth year, and domain. The tool will then predict a number of potential variations.

3 best email finders with email guessers built-in

If you are looking for greater capabilities, you should look towards an email finder tool. If an email guesser is still important to you, there are a few email finder tools that still offer email guessing functionality. Make sure to also check out our constantly updated list of email finder tools.

1. Name2Email

Cost: Free

Availability: Browser extension

The best thing about it: Find email addresses directly within Gmail for extreme convenience

Name2Email lets you find a valid email address by searching a name and domain—all within Gmail. Simply enter the name and domain of the person you are looking for, and Name2Email will provide a number of possible emails to get in contact with that person. Choose the right method of contacting them for best results!

2. Email Matcher

Cost: Free

Availability: Browser extension

The best thing about it: Search a name and domain to quickly get an email address

AmpleMarket's EmailMatcher tool is a Google Chrome extension that helps you find email addresses by inputting an individual's first and last name and a domain. Email Matcher will then find relevant contact details and provide an email address that allows you to reach out to contacts important to your business.

3. LeadGibbon

Cost: $49/mo (1,000 credits) to $199/mo (20,000 credits)

Freemium Offer: Free trial upon sign up

Availability: Web browser

The best thing about it: Find and validate email addresses of targeted prospects

Create your own lead database that your sales team can leverage. Find email addresses from LinkedIn using just one click, and then enrich these emails with more contact details that help you market more directly and effectively.

5 free email finder tools for generating leads

If you want more than an email guesser, you should consider an email finder tool that offers greater functionality. Below are a number of free email finder tools—or tools that offer a free plan option—that will help you generate leads at no cost.

1. Hunter.io

Cost: $0/mo (50 searches) to $399/mo (30,000 searches)

Freemium Offer: 50 searches/mo + 50 verifications/mo

Availability: Web app, Browser extension

The best thing about it: Find emails in seconds and connect with decision-makers that matter

2. GetEmail

Cost: $0/mo (10 credits) to $399/mo (10,000 credits)

Freemium Offer: 10 credits/mo

Availability: Web app

The best thing about it: Find anyone's email within seconds

3. GetProspect

Cost: $0/mo (100 emails) to $399/mo (50,000 emails)

Freemium Offer: 100 emails/mo

Availability: Web app

The best thing about it: Search leads based on specific criteria, and generate and track prospects

4. LeadMine

Cost: $0/mo (10 credits) to $299/mo (2,500 credits) | $2,000+/mo (Enterprise)

Freemium Offer: 10 credits/mo

Availability: Web app, Browser extension

The best thing about it: Find, capture, and export B2B contact information

5. Lusha

Cost: $0/mo (5 credits) to $199/mo (300 credits) | Custom pricing (Enterprise)

Freemium Offer: 5 credits/mo

Availability: Web app, Browser extension

The best thing about it: Find email addresses and phone numbers for prospective leads

5 sales management tools that help you find new prospects

There’s a number of other email finder tools that will help you find valuable leads and integrate them into your sales funnel. These sales management tools find (and in some cases verify) emails addresses, so that an email guessing tool is unnecessary.

1. SellHack

Cost: $5/mo (100 credits) to $99/mo (2,500 credits)

Availability: Web app, Browser extension

The best thing about it: Verified email addresses are ensured with a 100% bounce protection guarantee

2. FindEmails

Cost: $29/mo (1,000 credits) to $99/mo (10,000 credits)

Availability: Web app, Browser extension

The best thing about it: Connect with company decision-makers instantly

3. Skrapp

Cost: $0/mo (150 emails) to $299/mo (50,000 emails)

Freemium Offer: 150 emails/mo

Availability: Web app, Browser extension

The best thing about it: Specialized B2B lead finders and outreach

4. AeroLeads

Cost: $49/mo (1,000 credits) to $499/mo (15,000 credits) | Custom pricing (Enterprise)

Availability: Browser extension

The best thing about it: Connect with decision-makers for high-impact results

5. UpLead

Cost: $0/mo (5 credits) to $399/mo (1,500 credits)

Freemium Offer: 5 credits upon sign up

Availability: Web app, Browser extension

The best thing about it: Find the best leads for your industry by searching social networks and enriching contact details

An email guesser will automate the process of trying all potential email variations, allowing you to attempt to connect to leads that you cannot verify. This saves your team the time of testing out all variations themselves, using standard business patterns to easily generate potential variations.

The main flaw with this method is that only one of the variations will be accurate; by nature, this method has a low delivery rate. To more effectively target leads, you can use an email finder tool that finds authentic email addresses and other contact details.

Once you've found that email address, you'll need a compelling message to send. Use our free cold email templates and strategies to get more hot leads into your sales pipeline.

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