Best Knock Alternatives
Updated February 2026
Knock
Customer engagement infrastructure for product-led growth
Looking for alternatives to Knock? We found tools across 4 categories that offer similar functionality. The top-rated alternatives include Folderly (5.0★) , AhaSend (5.0★) , and Dropcontact (5.0★).
Knock vs Top Alternatives
| Tool | Rating | Reviews | Pros | Cons |
|---|---|---|---|---|
|
Knock
|
★★★★★ | 3 | 13 | 2 |
Folderly
|
★★★★★ | 48 | 17 | 0 |
AhaSend
|
★★★★★ | 3 | 0 | 0 |
Dropcontact
|
★★★★★ | 9 | 13 | 1 |
Waitlist API
|
★★★★★ | 7 | 0 | 0 |
OneSignal
|
★★★★★ | 6 | 0 | 0 |
Best Email marketing Alternatives to Knock
Folderly
Make the inbox your only destination folder
AhaSend
Blazing Fast, Pay-as-You-Go Transactional Email APIs
Dropcontact
Enrich all your B2B contacts
Waitlist API
Quick and easy waitlist with built in referral.
OneSignal
The most widely used customer engagement solution
Ariyh
3 min practical marketing tips based on research
Warmy.io
Auto all-in-one tool to make your Email Channel Reliable
Userlist
Email automation for sophisticated product marketers
Emailee
Say goodbye to your boring email signature
ZEPIC
Personalized WhatsApp & Email AI campaigns that convert.
Sendinblue
Email, SMS, Chat, CRM, appointment scheduling and more, all-in-one platform to help you grow your business through bu...
Klenty
Send personalized emails at scale.
Scribe
Email signatures marketing on auto-pilot
Marketing Examples
Short, sweet, practical marketing
EmailOctopus
Email marketing for less.
Email Testing By Inbox Pirates
Preview, Analyze & Test emails with one click.
MailKing by cloudHQ
Helping your productivity, 1 click at a time.
Maileroo
Email Delivery Made Simple
Seamailer
Send emails that land in the inbox and bring results
Draft Alpha
The ultimate AI assistant for content creators.
Reach from SalesStream.ai
Simplest Email & SMS campaign builder for business owners
TOPOL.io
Beautiful emails, made easy
SENDUNE (formerly Send With SES)
The EASIEST platform for transactional and marketing emails.
Outfunnel
Marketing automation that drives revenue
GETitOUT
Generate marketing texts & websites like a pro
Laudspeaker
Open source cross channel marketing and messaging platform
EcoSend
The climate conscious email marketing platform.
pipl.ai
AI-powered cold email automation without breaking the bank.
KleverList
Simplified WooCommerce Customer Sync
MeowMail
Send Emails like Social Media, with 98% Inbox Deliverability
Best Marketing automation platforms Alternatives to Knock
Folderly
Make the inbox your only destination folder
AhaSend
Blazing Fast, Pay-as-You-Go Transactional Email APIs
Dropcontact
Enrich all your B2B contacts
Waitlist API
Quick and easy waitlist with built in referral.
OneSignal
The most widely used customer engagement solution
Ariyh
3 min practical marketing tips based on research
Warmy.io
Auto all-in-one tool to make your Email Channel Reliable
Userlist
Email automation for sophisticated product marketers
Emailee
Say goodbye to your boring email signature
ZEPIC
Personalized WhatsApp & Email AI campaigns that convert.
Sendinblue
Email, SMS, Chat, CRM, appointment scheduling and more, all-in-one platform to help you grow your business through bu...
Klenty
Send personalized emails at scale.
Scribe
Email signatures marketing on auto-pilot
Marketing Examples
Short, sweet, practical marketing
EmailOctopus
Email marketing for less.
Email Testing By Inbox Pirates
Preview, Analyze & Test emails with one click.
Ever Efficient AI
AI-Powered Solutions for Optimal Efficiency and Growth.
MailKing by cloudHQ
Helping your productivity, 1 click at a time.
Maileroo
Email Delivery Made Simple
Seamailer
Send emails that land in the inbox and bring results
Draft Alpha
The ultimate AI assistant for content creators.
Reach from SalesStream.ai
Simplest Email & SMS campaign builder for business owners
TOPOL.io
Beautiful emails, made easy
SENDUNE (formerly Send With SES)
The EASIEST platform for transactional and marketing emails.
Outfunnel
Marketing automation that drives revenue
GETitOUT
Generate marketing texts & websites like a pro
Laudspeaker
Open source cross channel marketing and messaging platform
EcoSend
The climate conscious email marketing platform.
pipl.ai
AI-powered cold email automation without breaking the bank.
KleverList
Simplified WooCommerce Customer Sync
Best Unified API Alternatives to Knock
AhaSend
Blazing Fast, Pay-as-You-Go Transactional Email APIs
liteLLM
One library to standardize all LLM APIs
LastMile AI
AI developer platform for engineering teams
APIPark
✨#1 Open Source AI Gateway & API Developer Portal
Keywords AI
Unified developer platform to build software with AI
Merlin Unified API
One Super API for all AI models (with 90% less error rates)
Nylas
Integrate inbox, calendar, and meetings into your app
DeepAI
Easily build the power of AI into your applications
ToolSDK.ai
5000+ MCP servers AI tools, 1 line of code
Langchain
LangChain’s suite of products supports AI development
Eden AI
Seamlessly Merging the Top AI APIs into One
Best AI Infrastructure Tools Alternatives to Knock
Folderly
Make the inbox your only destination folder
liteLLM
One library to standardize all LLM APIs
LastMile AI
AI developer platform for engineering teams
APIPark
✨#1 Open Source AI Gateway & API Developer Portal
Keywords AI
Unified developer platform to build software with AI
Merlin Unified API
One Super API for all AI models (with 90% less error rates)
Nylas
Integrate inbox, calendar, and meetings into your app
Ever Efficient AI
AI-Powered Solutions for Optimal Efficiency and Growth.
DeepAI
Easily build the power of AI into your applications
ToolSDK.ai
5000+ MCP servers AI tools, 1 line of code
Langchain
LangChain’s suite of products supports AI development
Eden AI
Seamlessly Merging the Top AI APIs into One
Frequently Asked Questions
What are the best alternatives to Knock?
The top-rated alternatives to Knock include Folderly, AhaSend, Dropcontact. These tools offer similar functionality in categories like Email marketing, Marketing automation platforms, Unified API.
How many alternatives to Knock are there?
There are 50 alternatives to Knock listed on FactCheckTool, spanning 4 categories.
What is the highest-rated alternative to Knock?
Folderly is the highest-rated alternative to Knock with a rating of 5.0/5 based on 48 reviews.
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