Best Free Email Lookup Tool | Find Emails Free

Three Free Ways to Look Up Emails

Whether you need one email or one hundred thousand, Mailsfinder has the right tool for your workflow.

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Free Single Lookup

Look up any professional's email with just their name and company. Get verified results instantly — your first credits are on us.

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Free Bulk Lookup

Upload a CSV of names and domains. Get verified emails back in minutes. Free credits included on every new account.

Start Bulk Lookup

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Free API Access

Test our email lookup API with free credits. 200ms response time, JSON output, and easy integration with your tools.

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How Free Email Lookup Works

Our free tier uses the same 99% accurate verification engine as our paid plans. No accuracy downgrade.

01

input

Input Data

Provide a name and company domain — single or bulk CSV upload.

02

database

Multi-Source Search

We query premium data providers and public records in real-time.

03

verified_user

SMTP Verification

Multi-step SMTP handshake, MX record check, and pattern analysis.

04

analytics

Confidence Score

Verified result with accuracy score, ready for your CRM or outreach tool.

Free Doesn't Mean
Limited

Most "free" email tools give you 10-50 lookups. Mailsfinder's free credits let you actually test at scale. When you're ready to grow, our $49/mo plan gives you 10K credits.

1

Upload Your Prospect List

Drop your CSV file with names and domains into our secure dashboard.

2

Automated Finding & Verification

Our engine processes thousands of rows in minutes with real-time SMTP verification.

3

Download & Launch Campaigns

Export verified leads ready for Instantly, Smartlead, Lemlist, or any outreach tool.

Why Mailsfinder Is the Best Free Email Lookup Tool

Same enterprise-grade accuracy on free and paid plans. The only difference is volume.

100K

Credits/Month

99%

Verified Accuracy

$0.001

Cost Per Email

200ms

API Latency

Feature	Mailsfinder	Hunter	Snov.io	Apollo
Credits (at ~$99/mo)	100,000	2,000	5,000	Unlimited*
Cost Per Email	$0.001	$0.024	$0.020	$0.01
Verification Method	Real-time SMTP	Pattern-based	7-tier SMTP	Database Only
Bounce Rate	<1%	~5-10%	~3-5%	Variable

Built for Growth Engineers

A simple, powerful API that turns a name and domain into a verified lead. Programmatic outreach at its most efficient.

api

Native REST

JSON responses for easy parsing. 200ms latency.

bolt

n8n & Make

Pre-built blocks for low-code automation.

sync

Zapier

Connect 5,000+ apps in seconds.

security

GDPR Ready

Compliance-first data sourcing.

cURL Request

curl --request POST \

--url https://api.mailsfinder.com/v1/find \

--header 'Authorization: Bearer YOUR_KEY' \

--data '{

"full_name": "Sarah Johnson",

"domain": "salesforce.com"

}'

Transparent Pricing. No Hidden Fees.

100K verified emails for $99/mo. That's $0.00099 per credit.

Pro

$49 /mo

10,000 credits (finder + verifier)

check_circle Single & Bulk Finder
check_circle Email Verification
check_circle CSV Export
check_circle CRM Integrations

Select Pro

Who Uses Mailsfinder's Free Email Lookup?

groups

SDRs & BDRs

Build hyper-accurate prospect lists for personalized outreach that converts at 2-3x industry average.

campaign

Agencies

Scale lead generation for multiple clients without burning your domain reputation. Unlimited team members.

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Founders

Find decision-makers at target accounts in minutes. Close your first 10 customers faster.

code

Growth Engineers

Automate data enrichment flows using our high-throughput API with 200ms latency.

Frequently Asked Questions

Is Mailsfinder's email lookup really free? expand_more

Yes. When you sign up for Mailsfinder, you receive free credits immediately — no credit card required. You can use these credits to find and verify professional email addresses with the same 99% accuracy as our paid plans. There are no hidden fees, no trial expirations, and no strings attached.

How many free email lookups do I get? expand_more

You get enough free credits to thoroughly test the platform and see real results. This includes single lookups, bulk CSV uploads, and API calls. When you're ready to scale, upgrade to Pro for 10,000 credits per month at just $49/mo.

Is the free version as accurate as paid plans? expand_more

Yes, absolutely. Free and paid credits use the exact same 99% accurate SMTP verification engine. Every email lookup goes through our proprietary multi-step process including SMTP handshake, MX record checks, and pattern analysis. There is zero accuracy downgrade on the free tier.

What happens when my free credits run out? expand_more

When your free credits are used up, you can upgrade to our Pro plan at $49/mo for 10,000 credits or the Agency plan at $99/mo for 100,000 credits. Both plans include all features — single finder, bulk finder, email verification, CSV export, and integrations. We also offer a Lifetime plan with 300K credits that never expire for $249 one-time.

How does Mailsfinder compare to other free email lookup tools? expand_more

Most free email lookup tools deliver 80-85% accuracy because they rely on stale databases or pattern guessing. Mailsfinder uses real-time SMTP verification to achieve 99% accuracy — even on the free tier. We also offer bulk CSV uploads and API access with free credits, which most competitors restrict to paid-only plans.

Stop Settling for Inaccurate
Free Email Tools.

Mailsfinder gives you free credits with the same 99% accuracy that powers 5,000+ growth teams. Start your free lookup today.

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The Best Free Email Lookup Tool in 2026