Growth · alternatives · 2026
24 alternatives to Send Sleuth
Bulk validate emails in Google Sheets
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Send Sleuth launched in 2022; newer entries below may have overtaken it.
- 1
An add-on for email verification directly on Google Sheets
2018 · its alternatives →
- 2
A Google Sheets add-on for bulk email verification
2018 · workspace.google.com · its alternatives →
- 3
ValidSheet▲103Validate emails in bulk inside Google Sheet using API
2023 · victrays.com · its alternatives →
- 4
Verify up to 230K email addresses directly in Google Sheets
2020 · workspace.google.com · its alternatives →
- 5
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Remove hard bounces and email traps from your email lists
2016 · emaillistverify.com · its alternatives →
- 7
The first free and accurate email verification service
2020 · gmass.co · its alternatives →
- 8
The top tool for checking mail address authenticity
2023 · email-verifier.convertinsight.com · its alternatives →
- 9
sendsheets ▲171send personalized emails with google sheets
2024 · sendsheets.com · its alternatives →
- 10
Verify your email list and improve deliverability ✅
2018 · voilanorbert.com · its alternatives →
- 11
Cleanmails - Unlimited email verification
Jan 2026 · its alternatives →
- 12SE
SendSimple App is Email addon for Google Workplace. Send bulk personalised emails via Gmail, Amazon SES, sendgrid and more - It's easy to use - start today!
2021 · sendsimple.app · its alternatives →
- 13
Verify emails instantly in bulk syntax, MX, disposable more
2025 · verify.udecode.net · its alternatives →
- 14
Validates email addresses, checks deliverability
2022 · outscraper.com · its alternatives →
- 15
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- 17
Validate email lists with reliable accuracy
Nov 2025 · sanitizeemail.com · its alternatives →
- 18
Instant Email Verification – Real, Reachable & Secure
2025 · validate.email · its alternatives →
- 19
- 20
Hi HN – Kristyna here. I built this free, online email validator and would love to share it with you. What it checks: - Syntax – Confirms correct proper email format. - Domain & DNS – Verifies the domain exists and resolves. - MX records – Verifies the domain can receive mail. - SMTP handshake (optional) – Checks the mail server accepts the recipient (no message is sent). - Disposable domains – Flags temporary inbox providers that can hurt deliverability lists. - Common typos – Catches mistakes and suggests fixes. How it works: Paste an email > click Validate > get a clear result with…
Feb 2026 · sidemail.io · its alternatives →
- 21
Scrubby▲42Complete risky email validation tool with 98% accuracy
2025 · scrubby.io · its alternatives →
- 22
Verify your email list before you hit send
Aug 2026 · mailercloud.com · its alternatives →
- 23
Mailerio▲30Keep your lists clean with email validation tool
2025 · mailerio.com · its alternatives →
- 24
Affordable, accurate email-verification tool
Nov 2025 · verified.email · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →