8 Best Email Permutator Tools To Find Anyone's Email in 2025

You need accurate email addresses, before you hit “Send” through your marketing campaign software. In this guide, that is exactly what we’ll cover – the best email permutators to help you find and verify email addresses.

We’ll cover the following topics.

By the end of this expert guide, you’ll become proficient in picking the right tool for your needs, understanding completely how permutators work and how to maximize their efficiency.

What is an Email Permutator?

An email permutator is a sales and marketing tool that finds possible email addresses given limited information. You provide details about the person you want to contact, such as first name, last name, and business domain. The email permutator then creates a variety of permutations (combinations). 

Examples of email permutations include:

How Email Permutators Work

The tool “guesses” a person’s email address using common combinations. This means that they aren’t necessarily correct, but are possible email addresses.

Fact: Rob Ousbey made the world's first email permutator as a Google Sheet for email outreach purposes. There is also an interactive version that requires a Gmail account, a Rapportive plugin, and access to his permutator spreadsheet to use it.

8 Top Email Permutator Tools 

We’re going to explore the 5 best email permutator tools. You can use these tools to grow your email list subscribers and for cold outreach. 

Many of the email permutators listed below include advanced features that help boost your email marketing ROI by delivering newsletters and offers to verified inboxes.

The best email permutators help you find email addresses of the most relevant people in your industry that could turn into valuable leads, while protecting people’s privacy rights at the same time.

1. Bookyourdata

Bookyourdata email permutator

One of the most powerful and accurate tools is BookYourData. It offers an email permutator that will guess and validate emails quickly – with a solid 97% accuracy guarantee. You can customize it to get more segmented lists. It will also make email extraction easier and give marketers only useful emails to work with.

Best Features

  • Gives you real-time verification
  • Offers the option for custom list generation
  • has access to over 100 data filters
  • Tools like bulk lookup and prospector
  • Credits do not expire

Pros

  • 97% accuracy (high for B2B outreach)
  • Gives free integration for CRM with API access
  • CCPA and GPDR compliance
  • offers free trial credits
  • Great customer support

Cons

  • Limited integration with some email marketing platforms
  • More B2B-focused
  • Involves a slight learning curve
  • No unlimited subscription model is available
  • Higher per-lead costs for small campaigns

Pricing

  • Pay-as-you-go model (no need for subscription)
  • Pricing may vary based on validated leads (no expiration on credits)

Rating

  • G2: 4.9/5 (304 Reviews)
  • Capterra: 4.9/5 (38 Reviews)

What Sets BookYourData Apart for Email Permutation?

It is accurate and flexible. Plus, it offers a user-friendly interface for targeted campaigns.

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2. Findymail

Findymail email permutator

Findymail is also an excellent tool for email finding and permutation. It has a 95% accuracy for email verification, which means your marketers will most likely have valid emails for campaigns.

Best Features

  • Offers integrated email finding and verification capabilities
  • Has a user-friendly interface
  • New users get free credits (for free leads)
  • Features for data analysis
  • Email permutation and validation together

Pros

  • High accuracy of data output
  • Simple setup and easy to use
  • Free trial credits are available
  • Faster customer service
  • Intuitive process of email permutation

Cons

  • Subscription-only model
  • Limited integrations for CRM
  • There’s no pay-as-you-model
  • Lack of advanced analytics (but only for entry-level plans)
  • Might be costly for small teams

Pricing

  • Basic ($49)
  • Starter ($99)
  • Business ($249)

Rating

  • G2: 4.8/5 (44 Reviews)
  • Capterra: 4.4/5 (8 Reviews)

Why Your Company Should Use Findymail?

It is good if you want a straightforward tool that is simple and easy to use. So, your experienced and new marketers can use it seamlessly.

3. Metric Sparrow Email Permutator+

Metric Sparrow email permutator

Metric Sparrow has a no-cost model with its email permutator tool. You can use it to generate multiple email combinations and the no-cost model will make it ideal if you’re on a tight budget. It’s good for basic email permutation but without validation features.

Best Features:

  • You get free access to unlimited permutations
  • Can generate up to 46 combinations per input
  • Quick and simple interface
  • Easy manual entry features
  • Customization as an open-source tool

Pros

  • It is free of charge (entirely)
  • A high range of permutation
  • User-friendly
  • No registration needed
  • Good for quick and basic email guesses

Cons

  • Requires a manual search process
  • Lacks email verification/validation
  • No CRM or even marketing tool integration
  • Limited customer support
  • Only suitable for small-scale users

Pricing

  • Free for all

Rating

  • G2: N/A
  • Capterra: N/A

Why is Metric Sparrow a Top Emai Permutator Tool?

It is entirely cost-free which means you can use it for a high range of email permutations (up to 46 combinations per input) without spending a dime.

4. Voila Norbert – Email Finder

Voila Norbert email permutator

This one is also known for its accuracy but one of the features that stands out is that it offers multiple integrations. It can tune in with multiple CRM and marketing tools. Plus, it also has the option for individual lookups along with bulk searches.

Best Features

  • Bulk email search
  • It supports integration of social media and CRM
  • Real-time verification of email is facilitated
  • Syncing of social profiles to amplify outreach
  • Email permutations are customizable

Pros

  • Multi-usage of the integration with the CRM and marketing tools
  • Free credits for trial users
  • Easy-to-use interface
  • High accuracy in permutations of the email and validation
  • Advanced email search

Cons

  • The subscription model is not expansive
  • Does not offer a pay-as-you-go pricing model
  • The usage of credits is limited to users during a trial
  • Expensive in terms of pricing when it is frequently used
  • Accuracy of the Doman lookup is poor

Pricing

  • Valet ($49)
  • Butler ($99)
  • Advisor ($249)
  • Counselor ($499)

Rating

  • G2: 4.7/5 (72 Reviews)
  • Capterra: 4.6/5 (28 Reviews)

Why Use Voila Norbert's Email Permutator Tool?

It might be a bit pricey for more modest campaigns, but it does give you several bulk email lookups and validations. Most importantly, it integrates well into a huge list of marketing tools and CRMs.

5. UpLead

Uplead email permutator

One of the most popular email finder tools is UpLead, which comes with real-time verification features. You can benefit significantly due to the 95% accuracy rate. In addition, it has lead generation tools with amazing technographic data.

Best Features

  • Integrates with the popular CRM systems
  • Highlty accurate email finder
  • Technographic data insights
  • Real-time email verifications
  • Comprehensive Lead generation tools

Pros

  • Solid 95% accuracy rate
  • Free trial
  • Simple yet intuitive interface
  • Comprehensive tools for market research
  • Subscription options for varying needs

Cons

  • Only 5 credits for trial users
  • Doesn’t practice transparent pricing with the Professional Plan
  • Absence of flexible payment options
  • Limited to monthly subscriptions
  • Costly for small companies and teams

Pricing

  • Free Trial with 5 Credits (7 Days)
  • Essentials ($99)
  • Plus ($199)
  • Professional (custom pricing)

Rating

  • G2: 4.7/5 (779 Reviews)
  • Capterra: 4.6/5 (76 Reviews)

Will UpLead Be a Smart Email Permutator Choice?

It has a high accuracy rate, a rare feature in even the most popular and successful email permutation tools. And it also offers real-time verification for the emails you lookup to save time.

6. Hunter.io

Hunter.io

Hunter.io is suitable for finding and confirming professional emails in different industries, including for SaaS lead generation purposes. You can use the email finder, validation, and verification tools in the same platform.

Best Features

  • You can do domain searches for company-wide emails
  • Also has bulk email verification facilities
  • Integrates with top-rated CRMs
  • Offers API access for easier custom integrations
  • Email verification has a higher accuracy rate

Pros

  • Free trial for users
  • Quick and efficient email validation
  • Flexible API (very useful for developer)
  • Good for B2B campaigns
  • Simple user features for bulk searches

Cons

  • Only offers a subscription pricing model
  • Expensive for small companies and teams
  • Higher tier pricings unlock CRM integrations
  • No pay-as-you-go model
  • Limited free credits for trial users

Pricing

  • Free ($0)
  • Starter ($34/month)
  • Growth ($104/month)
  • Business ($349/month)

Rating

  • G2: 4.4/5 (554 Reviews)
  • Capterra: 4.6/5 (631 Reviews)

Why You Can Choose Hunter.io for Email Permutation?

While the monthly plans might be better suited for larger campaigns, you can quickly lookup and verify emails in bulk.

7. Snov.io

Snov.io

This email permutator tool comes with a long list of email marketing tools, which begin with an email finder. This is highly suitable for marketing professionals and particularly the experts specializing in “email marketing” becaus it also has lead generation and verification features.

Best Features

  • Lead generation tools available
  • Customizable API access
  • Quick searches through browser extensions
  • CRM and marketing tool integrations
  • Real-time email verification options

Pros

  • Convenient and affordable for small teams and comapnies
  • Browser extension makes it easier to streamline searches
  • Free plan with basic features and options
  • Email marketing and automation tools with simple integrations
  • Excellent customer support

Cons

  • Limited options and features on free plan
  • Lower accuracy than other email permutator tools
  • Bulk actions are very limited on low-tier plans
  • Advanced tools restricted to high-tier plans
  • Little or no CRM integrations on entry-level plans

Pricing

  • Trial: $0 per month with 50 credits
  • Starter: $30 per month with 1,000 credits 
  • Pro (5K Credits): $75 per month for 10,000 email addresses
  • Pro (20K Credits): $142 per month for 40,000 email addresses 
  • Pro (50K Credits): $277 per month for 100,000 email addresses 
  • Pro (100K Credits): $544 per month for 200,000 email addresses 

Rating

  • G2: 4.6/5 (427 Reviews)
  • Capterra: 4.5/5 (212 Reviews)

Why is Snov.io a Good Choice?

It is a good choice because it’s versatile and affordable. It focuses on email marketing and therefore, it is a great tool for boosting your email campaigns. Also, it integrates with lead generation tools for more comprehensive campaign results.

8. RocketReach

Rocketreach

RocketReach is another powerful search engine for email finding – and verification. It can find emails through social profile information and help the marketers find accurate emails. It has a solid accuracy rating as well and offers quicker real-time results.

Best Features

  • Uses social profile information for contact searches
  • Sales tool and CRM integrations
  • Lookups for both email and phone
  • Easier targeting due to customizable and advanced filters
  • Multiple formats with extra options

Pros

  • Accurate contact information through social profiles
  • Bulk email lookup
  • Social outreach-focused
  • Comprehensive export options (higher flexibility)
  • Easy integration with platforms like LinkedIn

Cons

  • Free credits are very limited
  • Enterprise plans cost more
  • There’s no pay-as-you-go model (only subscriptions)
  • No free verification
  • Bulk research is limited on starter plans

Pricing

  • Essentials $39/month
  • Pro $99/month
  • Ultimate $249/month
  • Custom team plans with set packages as well

Rating

  • G2: 4.5/5 (760 Reviews)
  • Capterra: 4.1/5 (133 Reviews)

What Makes RocketReach Stand Out as an Email Permutation Tool?

It stands out for one simple reason – it’s reliable and accurate because it uses social profile integration. That way, you can go for personalized outreach through valid and useful email addresses.

How to Use an Email Permutator

Finding someone’s email address is tricky if you don’t have all their details or access to their professional network. Fortunately, email permutators come to the rescue. Sales and marketing people often use them for outbound lead gen and cold outreach.

In general, there are three steps that you need to follow if you want to get the most of an email permutator tool.

  1. Provide Basic Details

The first thing you should do is collect all the relevant contact details you can find. This means getting two pieces of information for each prospect:

Name: Try to get all names – first, middle, and last.

Domain: The company domain is usually the same as the website URL, e.g.  ibm.com.

  1. Add The Data To Your Email Permutator

Once you’ve gathered all the info, next you need to add it to your chosen tool. The email permutator then generates a wide range of permutations. For example, if you add the name “John Smith” with a company domain of “permutator.com”, you’ll get combinations that look something like this:

  1. Verify Your Email Address

Now you’ve got a lot of combinations, you need to do the final, most important step of the process – email verification. An email verification tool helps you find valid and active addresses among many combinations. 

A bulk email verifier saves time if you have a large email list to check. Simply insert all your data and wait for the results. The tool extracts valid email addresses using a range of filters and procedures. Bookyourdata is one of the best tools on the market, delivering fast and accurate results.

Finding reliable email permutations is just the beginning. You also need to build a strategy to actually reach out to your ideal contacts. Our guide on effective ways to find someone's email address gives you a great number of ideas on how you can improve your email outreach.

Another thing to think about is how your prospects are interacting with your messages via email and how you could personalize it. One good approach in making your message stand out would be referring to a post that they liked on social media. It could also be some sort of incentives or referrals to a blog or YouTube video related to their interest. It is best if the send-out emails aren't some standard copy sent to everybody.

Free vs. Paid Email Permutators – What’s the Difference?

Do you want to choose a free email permutator tool or a paid one? Well, how you want to use determines the answer.

Free Email Permutators

Free email permutators are easy to access and offer basic features. They are simple to use, normally requiring just the name and domain to generate a list of possible combinations.

Free tools usually have some serious drawbacks, including:

  • Accuracy: Free permutators rely mainly on simple algorithms that cannot guarantee accuracy
  • Integration: No integrating with any CRM or any other marketing tool
  • No Real-time Verification: Misses out on high accuracy levels
  • Bulk Processing: Most of the free email permutators will not even let you have a solution to process in bulk

Paid Email Permutators

Paid email permutators would always ask for subscription to access their service. Very often this service is associated with real-time email validation facilities, hence higher accuracy in terms of result delivery. This would mean that third-party tools are not a prerequisite for your service and saves a lot of effort and time.

Paid tools also have another more significant advantage over the free ones: the former tend to be updated more frequently, and you receive better customer support. In addition, more features that most paid email permutators do but are not available on the free one include:

  • Automated for efficiency
  • Integration with custom and email marketing CRMs
  • Bulk processing of emails
  • Advanced analytics on delivery, engagement, and more.

Besides permutators, you might also get value from email extractors. For more on email extractors, read this in-depth guide.

Choosing the Right Tool

In general, free email permutators might be okay for individuals who have more time to spend and don’t need to generate so many leads.

For businesses that are looking to grow through email marketing, getting highly accurate email addresses is really important.  

This is because high accuracy lowers the bounce rates and increases engagement. In fact, it can also produce better open rates, click-through rates, and conversion rates. All of that is good for your reputation. We highly suggest using free tools for private or small activities, but investment in high-class email tools is worth making when generating leads for a business.

When to Consider Paid Email Permutator Solutions

You should choose paid email permutator solutions when you require any of the following features:

  • Email verification with high accuracy
  • Advanced analytics
  • API integrations
  • Updates at regular intervals
  • Customer support
  • Integration with CRM systems and email marketing tools
  • Customizable templates

Another feature to consider is whether the permutator is capable of integrating with LinkedIn. That is because in B2B lead generation, more accuracy in permutations and a social media username will be factored into consideration.

8 Best Email Permutator Tools - A Quick Summary

Email permutators take a list of first name, last name, and company domain info and create a list of possible email addresses. Paid tools also include email verification, which can be more accurate, valid, and ready for use.

We compared the best email permutators currently available: Bookyourdaya, Findymail, Metric Sparrow, Voila Norbert, and UpLead.Overall, Bookyourdata returns the most accurate result. It is also using a flexible pay-as-you-go pay structure with no subscription requirement.

Paid permutators differ from free ones by their:

  • efficiency
  • accuracy
  • advanced analytics
  • API integrations
  • bulk processing
  • frequent updates
  • CRM integration
  • email templates
  • customer support

This makes free tools appropriate for private use, while paid ones for business email marketing.

Frequently Asked Questions

Can Email Permutators Guarantee Accurate Email Addresses?

No email permutator tool can ensure a fully accurate deliverability of the email. The reason is that this change can happen anytime-for example, companies might change their format in an email.

However, there are a few tools that provide near-perfect accuracy. Bookyourdata boasts a  97% accuracy level, and UpLead boasts 95% accuracy. To achieve maximum accuracy, you would have to pair your email extractor or permutator with an email validator tool. Some platforms like Bookyourdata contain both features in one; you can generate combinations, then test them to know if they are valid, active, and receiving messages.

If you are using free software, then you must verify the email addresses it generates with a third-party tool.

How Do Email Permutators Differ From Email Verification Tools?

The email permutators give probable email addresses, the validators check whether such addresses are valid, active and can get your message. The email permutator uses some information provided to suggest a permutation of email addresses.

They are essentially useless unless you verify each of them. You could only confirm whether the email relates to a certain person by email verification.

What Are the Legal Considerations When Using Email Permutators?

There are privacy laws, user consent, and personal data use. Companies and individuals using permutation tools must respect the recipient's rights and avoid legal repercussions.

Different data protection laws are in place from region to region, for instance GDPR (the General Data Protection Regulation) in the European Union and CCPA (the California Consumer Privacy Act) in the US. These laws require you get explicit consent before using somebody’s personal information. You must follow these rules when using email permutators. You must also check that you abide by the laws of other countries.

Messaging people cold might be considered spam. Sending unwanted or spam messages might damage your sender reputation. To protect yourself and your business, make sure you follow relevant anti-spam laws, such as the CAN-SPAM Act in the U.S., the ePrivacy Directive in Europe, CASL in Canada, Spam Act 2003 in Australia, and The Law on Regulation of Transmission of Specified Electronic Mail in Japan.

Most laws simply ask you to provide a clear unsubscribe link. Make sure the unsubscribe link is visible in every email.

Some laws ask you to get consent before you use someone’s email address for marketing, so your first message should always ask people to consent to you sending them more messages.

Generate and Validate In One Tool with BookYourData

If you’re looking to expand your email outreach, email permutator tools can be very useful. They allow you to potentially find a lot of new leads and clients. 

But you must make sure you pick the right tool and use it in the right way. Ideally, look for a tool that combines email permutations with email verification, like BookYourData.

Bookyourdata gives you valid and active contacts in seconds. Get 10 free leads now, and see how the right contacts can boost your email marketing efforts!

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