Top 6 Open-Source Alternatives to Slik

Product categories

Business & Commerce CMS CRM Communication Email Address Verification Email Delivery Email Finder Email Marketing Email Marketing Platforms Email Verification Productivity Sales

Summary

The top open-source alternatives to Slik are Totum, clearout.io, and Zoho CRM. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Totum Landing Page
1

Totum

Business database for non‑programmers
Pricing:
- Open Source
#Productivity #Predictive Analytics #Email Marketing
clearout.io Landing Page
2

clearout.io

Clearout Email Finder & Email Verification Service - Drive sustainable business growth by expanding your reach, lowering hard bounces, and improving deliverability rates.
Pricing:
- Open Source
- Freemium
- Free Trial
- $21.0 (3000 Credits)
#Web App #Email Marketing #CRM 7 social mentions
Zoho CRM Landing Page
3

Zoho CRM

Omnichannel CRM for Businesses of all sizes
Pricing:
- Open Source
- Freemium
- Free Trial
- $14.0 / Annually ($14 USD/monthly on Annual Subscription.)
#CRM #Productivity #CMS 1 social mentions
monday CRM Landing Page
4

monday CRM

monday sales CRM is a customizable customer relationship management software for every business with support for unlimited leads and accounts and prepaid plans.
Pricing:
- Open Source
- Free
- Free Trial
#Business & Commerce #Communication #CRM
Mailgun Landing Page
5

Mailgun

A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.
Pricing:
- Open Source
#Email Delivery #Transactional Email #Email Marketing 11 social mentions
Ricochet Landing Page
6

Ricochet

Anonymous instant messaging for real privacy
Pricing:
- Open Source
#Communication #Sales #Group Chat & Notifications 1 social mentions