Sites like Zimbra

01 · Entity

About Zimbra

Zimbra zimbra.com

Open Standards | Low-Risk Alternative | Data Sovereignty | Zimbra

Zimbra: A Cloud-Hosted Collaboration Software and Email Platform That Integrates With Proprietary Business Solutions

Wikidata: collaborative software suite

Top 10K · #3,726 English 16 technologies Crawled Nov 6, 2026

Visit Zimbra

Summary by Claude

Zimbra Collaboration is an email server and web client suite with calendar and collaboration tools, deployable on-premises, in private cloud, or via hosting partners, built on open-source and open standards.

Who it’s for

Enterprises, governments, service providers

Business model

Software licenses and support subscriptions

• email and collaboration software
• email server
• webmail client
• on-premises email
• shared calendar
• data sovereignty
• hosted email for service providers
• Microsoft Exchange alternative

02 · Embedding space

Competitor map

Each alternative by how close its vector is to Zimbra’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

1. 01
   SlideShare slideshare.net Top 1K English

   Client Challenge

   American hosting service, owned by Scribd, for professional content including presentations, infographics, documents, and videos

   • Fastly
   • Google Search Console
   • Google Workspace
   • Amazon Route 53

   0 say SlideShare is a good alternative to Zimbra 0 say SlideShare isn’t a real alternative to Zimbra

   Comment
   Close cos 0.889
2. 02
   Fastmail fastmail.com English

   Email and calendar made better | Fastmail

   Fast, private email hosting for you or your business. More productive, lightning fast, simple and built to save you time.

   • Cloudflare
   • Fastmail

   0 say Fastmail is a good alternative to Zimbra 0 say Fastmail isn’t a real alternative to Zimbra

   Comment
   Close cos 0.883
3. 03
   Zoom zoom.com Top 1K English

   One platform to connect | Zoom

   Modernize workflows with Zoom's trusted collaboration tools: including video meetings, Zoom Chat, VoIP phone, webinars, whiteboard, contact center, and events.

   • Google Search Console
   • Google Tag Manager
   • Adobe
   • Amazon SES
   • Apple Business
   • Atlassian

   0 say Zoom is a good alternative to Zimbra 0 say Zoom isn’t a real alternative to Zimbra

   Comment
   Close cos 0.880
4. 04
   Infomaniak SA infomaniak.com Top 10K English

   Control your data governance with an independent cloud. Solutions hosted in the heart of Europe, designed to protect your confidentiality.

   • Google Search Console
   • Apple Business
   • Atlassian
   • Gatsby
   • Mailgun
   • React

   0 say Infomaniak SA is a good alternative to Zimbra 0 say Infomaniak SA isn’t a real alternative to Zimbra

   Comment
   Close cos 0.881
5. 05
   Nextcloud nextcloud.com Top 10K English

   Nextcloud - Open source content collaboration platform

   The most popular open source content collaboration platform for tens of millions of users at thousands of organizations across the globe

   • Google Search Console
   • jQuery
   • PHP
   • WordPress
   • Amazon SES
   • Apache HTTP Server

   0 say Nextcloud is a good alternative to Zimbra 0 say Nextcloud isn’t a real alternative to Zimbra

   Comment
   Close cos 0.874
6. 06
   Tuta tuta.com English

   Tuta: Turn ON privacy for free with secure emails, calendars & contacts | Tuta

   Tuta guarantees your data stays private for free & without ads. Quantum-resistant encryption makes Tuta the best secure technology solution to protect your privacy.

   • Astro
   • Amazon Route 53

   0 say Tuta is a good alternative to Zimbra 0 say Tuta isn’t a real alternative to Zimbra

   Comment
   Close cos 0.873
7. 07
   Zebra zebra.com Top 10K English

   Zebra: The World’s Foundation for Intelligent Operations | Zebra

   Zebra powers intelligent operations to digitise, automate, and enhance your processes with mobile computers, scanners, printers, RFID, and more.

   • Fastly
   • Google Search Console
   • Adobe Experience Manager
   • Adobe Experience Platform Tags
   • Atlassian
   • Azure DNS

   0 say Zebra is a good alternative to Zimbra 0 say Zebra isn’t a real alternative to Zimbra

   Comment
   Close cos 0.867
8. 08
   Zuora zephr.com Top 10K English

   Zephr: AI Paywalls for Media and Publishers | Zuora

   Zephr lets media and publishing teams build and test dynamic paywalls without engineering, targeting offers by reader behaviour. See how Zephr works.

   • Google Search Console
   • Google Tag Manager
   • HubSpot
   • jQuery
   • nginx
   • PHP

   0 say Zuora is a good alternative to Zimbra 0 say Zuora isn’t a real alternative to Zimbra

   Comment
   Close cos 0.866
9. 09
   Miro miro.com Top 10K English

   AI Innovation Workspace | Miro

   Speed up product development from ideation to launch. Align teams, break tool silos, and ship what customers need in one AI-powered visual platform.

   • Google Fonts
   • Google Search Console
   • Google Tag Manager
   • Salesforce
   • Adobe
   • Apple Business

   0 say Miro is a good alternative to Zimbra 0 say Miro isn’t a real alternative to Zimbra

   Comment
   Close cos 0.867
10. 10
    One one.com Top 10K English

    Domains, Hosting, Websites & Email in One Place | one.com UK

    Everything you need to get your business online: domain, hosting, AI website builder and email. Hosting from £1.99/mo with a free domain for a year.

    • Google Search Console
    • HubSpot
    • Apple Business
    • Atlassian
    • Mailchimp
    • Mailchimp Transactional

    0 say One is a good alternative to Zimbra 0 say One isn’t a real alternative to Zimbra

    Comment
    Close cos 0.872
11. 11
    mail.com Top 10K English

    Free email accounts | Register today at mail.com

    Email how it is supposed to be: ✔ Free, simple and secure ✔ Manage multiple mail accounts in one place, from any device ✔ Sign up today!

    • Google Search Console
    • Google Tag Manager
    • nginx
    • Meta Business Suite

    0 say mail.com is a good alternative to Zimbra 0 say mail.com isn’t a real alternative to Zimbra

    Comment
    Close cos 0.870
12. 12
    Calendly calendly.com Top 1K English

    Meeting Scheduling Software and AI Meeting Tools | Calendly

    Calendly connects and simplifies all of the work around meetings, from scheduling, payments, and meeting prep to notetaking, contact management, and follow-up.

    • Google Search Console
    • Google Tag Manager
    • HubSpot
    • Adobe
    • Apple Business
    • Astro

    0 say Calendly is a good alternative to Zimbra 0 say Calendly isn’t a real alternative to Zimbra

    Comment
    Close cos 0.866
13. 13
    cloud.microsoft Top 100 English

    Microsoft 365 - Sign into Copilot

    Microsoft 365 includes Word, Excel, PowerPoint, Outlook, Teams, and OneDrive, with Microsoft Copilot built in to help you create, communicate, and summarize information. Formerly Office 365.

    • Google Search Console
    • Azure DNS
    • Azure Front Door
    • Bing Webmaster Tools

    0 say cloud.microsoft is a good alternative to Zimbra 0 say cloud.microsoft isn’t a real alternative to Zimbra

    Comment
    Close cos 0.867
14. 14
    Aruba aruba.it Top 10K English

    Home | Aruba.it

    Italian registrar and Web hosting company

    • Google Fonts
    • Google Search Console
    • Google Tag Manager
    • jQuery
    • Bing Webmaster Tools
    • Cloudflare

    0 say Aruba is a good alternative to Zimbra 0 say Aruba isn’t a real alternative to Zimbra

    Comment
    Close cos 0.869
15. 15
    Jane janeapp.com Top 10K English

    Practice Management Software for Health & Wellness Clinics | Jane

    Jane is an online platform for health and wellness practitioners that makes it simple to book, chart, schedule, bill and get paid.

    • Google Search Console
    • HubSpot
    • PHP
    • WordPress
    • Adobe Fonts
    • Cloudflare

    0 say Jane is a good alternative to Zimbra 0 say Jane isn’t a real alternative to Zimbra

    Comment
    Close cos 0.865
16. 16
    Zimperium zimperium.com Top 10K English

    Zimperium Mobile Security Solutions | Mobile Security for Apps & Devices

    Zimperium is the only mobile security platform purpose-built for enterprise, securing both mobile devices and applications so they can securely access data.

    • Google Analytics
    • Google Fonts
    • Google Search Console
    • Google Tag Manager
    • jQuery
    • PHP

    0 say Zimperium is a good alternative to Zimbra 0 say Zimperium isn’t a real alternative to Zimbra

    Comment
    Close cos 0.864
17. 17
    Red Hat redhat.com Top 1K English

    Red Hat - We make open source technologies for the enterprise

    Red Hat is the world’s leading provider of enterprise open source solutions, including high-performing Linux, cloud, container, and Kubernetes technologies.

    • Google Search Console
    • Mimecast
    • NS1
    • PHP
    • TrustArc
    • Adobe

    0 say Red Hat is a good alternative to Zimbra 0 say Red Hat isn’t a real alternative to Zimbra

    Comment
    Close cos 0.863
18. 18
    ZoomInfo zoominfo.com Top 10K English

    ZoomInfo: The #1 GTM Platform - Sales AI for Lead Generation

    ZoomInfo is the #1 GTM Platform: Marketing and sales AI plus the best B2B data. All-in-one lead generation, prospecting, market intelligence , and ABM software.

    • Google Search Console
    • Google Tag Manager
    • HubSpot
    • Atlassian
    • Brevo
    • Cloudflare

    0 say ZoomInfo is a good alternative to Zimbra 0 say ZoomInfo isn’t a real alternative to Zimbra

    Comment
    Close cos 0.863
19. 19
    IBM ibm.com Top 1K English

    IBM

    For more than a century, IBM has been a global technology innovator, leading advances in AI, automation and hybrid cloud solutions that help businesses grow.

    • Google Search Console
    • NS1
    • Adobe
    • Adobe Experience Manager
    • Adobe Experience Platform Tags
    • Akamai

    0 say IBM is a good alternative to Zimbra 0 say IBM isn’t a real alternative to Zimbra

    Comment
    Close cos 0.863
20. 20
    Bazaarvoice bazaarvoice.com Top 10K English

    Bazaarvoice | The UGC Platform for Authentic Shopper Experiences

    The leading UGC platform for authentic ratings, reviews, visual UGC, and review syndication that powers discovery, shopper trust, and higher ecommerce conversion.

    • Fastly
    • Google Search Console
    • Google Tag Manager
    • New Relic
    • nginx
    • Pantheon

    0 say Bazaarvoice is a good alternative to Zimbra 0 say Bazaarvoice isn’t a real alternative to Zimbra

    Comment
    Close cos 0.865

Ranked by score: the cosine similarity of each site’s vector to zimbra.com’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones Zimbra uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What Zimbra is built with, and what its closest competitors use, from its homepage’s code and its DNS records.