CRM & Sales

Sales pipelines, customer relationship management, and revenue workflows.

Open ranking →

Open/source-visible picks

Health-first ToolVitals score, then adoption

01

Twenty Top Pick

The open alternative to Salesforce, designed for AI.

OSI-approved OSS

53.7k stars Active 100

02

Erxes

Experience Operating System (XOS) that unifies marketing, sales, operations, and support — run your core business seamlessly while replacing HubSpot, Zendesk, Linear, Wix and more.

OSI-approved OSS

4k stars Active 99

03

Open Mercato

AI‑supportive CRM / ERP / Business application framework — built to power R&D, operations, and growth. It’s modular, extensible, and designed for teams that want strong defaults with room to customize everything. Better than Django, Retool and other alternatives - and Enterprise Grade!

OSI-approved OSS

1.5k stars Active 95

Proprietary targets

Replacement targets, not open-tool picks

01

Close CRM

CRM built for inside sales teams

Active 93

02

Salesforce

Cloud-based CRM platform for sales, service, marketing, and more.

Active 93

03

Advising App

AI-powered conversational assistant and recruitment CRM for student success teams.

Active 92

4 tools are on Evidence Watch.

Customer Support

Helpdesks, customer support, ticketing, and live chat tools.

Open ranking →

Open/source-visible picks

Health-first ToolVitals score, then adoption

01

Chatwoot Top Pick

Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬

OSI-approved OSS

34.8k stars Active 98

02

Frappe Helpdesk

Modern, streamlined customer service software.

OSI-approved OSS

3.3k stars Active 90

03

LibreDesk

Open source, self-hosted omnichannel customer support desk. Live chat, email, and more in a single binary.

OSI-approved OSS

2.7k stars Active 88

Proprietary targets

Replacement targets, not open-tool picks

01

InteraOne

Open source end-to-end customer support and sales automation.

Warning 85

02

There There CLI

CLI tool for the There There helpdesk.

Critical 56

03

KoalaQA

AI-powered customer support community for self-service and AI answers.

Warning 54

1 tool is on Evidence Watch.

Event Management

Tools for planning and running events, conferences, hackathons, registration, ticketing, CFPs, scheduling, and speaker workflows.

Open ranking →

Open/source-visible picks

Health-first ToolVitals score, then adoption

01

Pretix Top Pick

Ticket shop application for events.

OSI-approved OSS

2.5k stars Active 82

02

Events Tracker

CRM and calendar to track events, promoters, artists, venues, and related entities.

OSI-approved OSS

23 stars Warning 78

Booking & Reservations

Tools for booking shared spaces, resources, rentals, or appointments and managing reservations, availability, and rental workflows.

Open ranking →

Open/source-visible picks

Health-first ToolVitals score, then adoption

01

QloApps Top Pick

QloApps is a Free and Open-source hotel management and reservation system to take a hotel business online. QloApps offers a Property Management System (PMS), a Booking Engine, and an attractive Hotel Website. Elevate hotel operations with QloApps to streamline processes and provide an enhanced experience for both hoteliers and guests.

OSI-approved OSS

14.1k stars Warning 67