Sites like Slack

01 · Entity

About Slack

Slack slack.com

Slack | AI Work Platform & Productivity Tools

Boost productivity and save time with Slack‌ — ‌the AI work platform for managing projects, automating workflows, and connecting teams securely. Start working smarter today.

Wikidata: web-based instant messaging service

Top 1K · #292 English 8 technologies Crawled Nov 6, 2026

Visit Slack

Summary by Claude

Slack is a cloud-based team messaging app where workplace teams communicate in channels and direct messages, share files, and automate workflows with integrated apps and AI assistants.

Who it’s for

Businesses and work teams

Business model

Freemium subscriptions

• team communication software
• team chat channels
• direct messaging
• workflow automation
• app integrations
• huddles and video calls
• AI assistant Slackbot
• file sharing
• enterprise collaboration

02 · Embedding space

Competitor map

Each alternative by how close its vector is to Slack’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
   larksuite.com Top 10K English

   Lark | Productivity Superapp for Chat, Meetings, Docs & Projects

   Lark is a productivity superapp for teams. Get chat, docs, meetings, workflow automations & AI for free all in one place.

   • Google Search Console
   • Google Workspace
   • HubSpot
   • Zendesk
   • Google Tag Manager
   • Intercom

   0 say larksuite.com is a good alternative to Slack 0 say larksuite.com isn’t a real alternative to Slack

   Comment
   Very close cos 0.914
2. 02
   ClickUp clickup.com Top 10K

   ClickUp™ | Maximize productivity • Software, AI, and humans converge

   Our mission is to make the world more productive. To do this, we built the everything app for work - Tasks, Docs, Goals, and Chat.

   • Google Search Console
   • Google Workspace
   • HubSpot
   • OneTrust
   • Amazon Route 53
   • Zendesk

   0 say ClickUp is a good alternative to Slack 0 say ClickUp isn’t a real alternative to Slack

   Comment
   Very close cos 0.910
3. 03
   monday.com Top 10K English

   The AI Workspace for People & Agents | monday.com

   Get more work done with AI agents that work side by side with your people. Execute, manage, and operate together on one AI Workspace to drive business results.

   • Google Search Console
   • Google Workspace
   • Zendesk
   • Adobe
   • Apple Business
   • Canva

   0 say monday.com is a good alternative to Slack 0 say monday.com isn’t a real alternative to Slack

   Comment
   Very close cos 0.910
4. 04
   Salesforce salesforce.com Top 1K German

   Salesforce: Das führende CRM mit KI | Salesforce DE

   Salesforce ist das führende CRM mit KI. Es hilft Unternehmen, sich auf völlig neue Weise mit Kund:innen zu vernetzen, indem es die Daten, Apps und Agents zusammenbringt, die das Unternehmen am Laufen halten.

   • Google Search Console
   • Google Workspace
   • HubSpot
   • OneTrust
   • Akamai
   • Akamai Bot Manager

   0 say Salesforce is a good alternative to Slack 0 say Salesforce isn’t a real alternative to Slack

   Comment
   Very close cos 0.907
5. 05
   telegram.org Top 1K

   Telegram Messenger

   Fast. Secure. Powerful.

   • Google Search Console
   • Bootstrap
   • Google Cloud DNS
   • nginx

   0 say telegram.org is a good alternative to Slack 0 say telegram.org isn’t a real alternative to Slack

   Comment
   Very close cos 0.896
6. 06
   Smartsheet smartsheet.com Top 10K English

   The Execution Hub for Enterprise Work | Smartsheet

   Smartsheet is the Execution Hub where people and AI get work done together, with the governance and visibility enterprises need.

   • Google Search Console
   • Amazon Route 53
   • Adobe
   • Apple Business
   • Atlassian
   • Canva

   0 say Smartsheet is a good alternative to Slack 0 say Smartsheet isn’t a real alternative to Slack

   Comment
   Close cos 0.891
7. 07
   DingTalk dingtalk.com Top 10K

   钉钉，AI时代工作方式

   钉钉（Ding Talk）是阿里巴巴集团打造的企业级智能移动办公平台，引领未来新一代工作方式，将陪伴每一个企业成长，是数字经济时代的企业组织协同办公和应用开发平台，是新生产力工具。

   • Google Search Console
   • GlobalSign
   • Microsoft 365
   • Tailwind CSS
   • Tengine

   0 say DingTalk is a good alternative to Slack 0 say DingTalk isn’t a real alternative to Slack

   Comment
   Close cos 0.891
8. 08
   tawk.to Top 10K English

   tawk.to - Free Live Chat Software for Your Website

   One free inbox for all your customer channels. Live chat, ticketing, knowledge base, AI assist, and CRM — all in one place. Trusted by 6M+ businesses.

   • Google Search Console
   • Google Workspace
   • Amazon SES
   • Atlassian
   • Cloudflare
   • Cloudflare DNS

   0 say tawk.to is a good alternative to Slack 0 say tawk.to isn’t a real alternative to Slack

   Comment
   Close cos 0.893
9. 09
   Notion notion.com Top 10K English

   The AI workspace that works for you. | Notion

   Build Custom Agents, search across all your apps, and automate busywork. The AI workspace where teams get more done, faster.

   • Google Search Console
   • Cloudflare
   • Cloudflare DNS
   • Contentful
   • Marketo
   • Microsoft 365

   0 say Notion is a good alternative to Slack 0 say Notion isn’t a real alternative to Slack

   Comment
   Close cos 0.888
10. 10
    LiveChat livechat.com Top 10K English

    Live Chat Software with AI by Text | LiveChat.com

    Text is live chat software for your website with an AI Agent that answers 24/7. Qualify leads and track sales from chats. Start your free 14-day trial.

    • Google Search Console
    • Google Workspace
    • HubSpot
    • Akamai
    • Apple Business
    • Atlassian

    0 say LiveChat is a good alternative to Slack 0 say LiveChat isn’t a real alternative to Slack

    Comment
    Close cos 0.889
11. 11
    SaleSmartly salesmartly.com Top 10K English

    AI-Powered Omnichannel Customer Engagement Platform | SaleSmartly

    Trusted by 300,000+ businesses. Unify WhatsApp, Telegram, Facebook, Instagram & more in a shared inbox with AI agents, CRM & automation to capture, convert & retain customers.

    • Google Search Console
    • Amazon Route 53
    • Amazon CloudFront
    • Next.js
    • nginx
    • React

    0 say SaleSmartly is a good alternative to Slack 0 say SaleSmartly isn’t a real alternative to Slack

    Comment
    Close cos 0.888
12. 12
    RingCentral ringcentral.com Top 10K English

    RingCentral: The Voice of Your Business

    Power the voice of your business with RingCentral Agentic Voice AI, including AI Receptionist (AIR), AI Virtual Assistant (AVA), & AI Conversation Expert (ACE).

    • Google Search Console
    • HubSpot
    • OneTrust
    • Adobe
    • Adobe Experience Manager
    • Apple Business

    0 say RingCentral is a good alternative to Slack 0 say RingCentral isn’t a real alternative to Slack

    Comment
    Close cos 0.889
13. 13
    CM.com cm.com Top 1K English

    One platform for every customer interaction | CM.com

    Behind every customer moment is a conversation that just works. CM.com connects messaging, marketing, service and payments on one shared context.

    • Google Search Console
    • Apple Business
    • Atlassian
    • Canva
    • Cloudflare
    • Cloudflare DNS

    0 say CM.com is a good alternative to Slack 0 say CM.com isn’t a real alternative to Slack

    Comment
    Close cos 0.888
14. 14
    Rackspace Technology rackspace.com Top 10K English

    Rackspace Technology | Where Enterprise AI runs and outcomes scale

    As a cloud computing services pioneer, we deliver proven multicloud solutions across your apps, data, and security. Maximize the benefits of modern cloud.

    • Apache HTTP Server
    • Google Search Console
    • YouTube embeds
    • Akamai
    • Akamai Bot Manager
    • Apple Business

    0 say Rackspace Technology is a good alternative to Slack 0 say Rackspace Technology isn’t a real alternative to Slack

    Comment
    Close cos 0.885
15. 15
    Messenger messenger.com Top 10K English

    Messenger

    Hang out anytime, anywhere—Messenger makes it easy and fun to stay close to your favorite people

    • Google Search Console
    • Microsoft 365
    • Proofpoint

    0 say Messenger is a good alternative to Slack 0 say Messenger isn’t a real alternative to Slack

    Comment
    Close cos 0.884
16. 16
    Zendesk zendesk.com Top 1K German

    KI-gestützte Serviceplattform | Zendesk

    Mehr als Ticketvermeidung: KI-Agenten lösen Anfragen durchgängig. Verbessern Sie Servicequalität, Geschwindigkeit und Skalierung. Jetzt kostenlos testen.

    • Google Search Console
    • Google Workspace
    • HubSpot
    • OneTrust
    • Amazon Route 53
    • Zendesk

    0 say Zendesk is a good alternative to Slack 0 say Zendesk isn’t a real alternative to Slack

    Comment
    Close cos 0.887
17. 17
    Snowflake snowflake.com Top 10K English

    Snowflake AI Data Cloud

    Snowflake powers AI, data engineering, applications, and analytics on a trusted, scalable AI Data Cloud—eliminating silos and accelerating innovation.

    • Google Search Console
    • Google Workspace
    • Amazon Route 53
    • Adobe
    • Adobe Experience Manager
    • Atlassian

    0 say Snowflake is a good alternative to Slack 0 say Snowflake isn’t a real alternative to Slack

    Comment
    Close cos 0.883
18. 18
    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 Workspace
    • HubSpot
    • OneTrust
    • Adobe
    • Apple Business

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

    Comment
    Close cos 0.883
19. 19
    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

    • Apache HTTP Server
    • Google Search Console
    • Amazon SES
    • Apple Business
    • Bootstrap
    • Font Awesome

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

    Comment
    Close cos 0.882
20. 20
    LinkedIn linkedin.com Top 100 English

    LinkedIn: Log In or Sign Up

    1 billion members | Manage your professional identity. Build and engage with your professional network. Access knowledge, insights and opportunities.

    • Google Search Console
    • Apple Business
    • Atlassian
    • Azure DNS
    • Cloudflare
    • DocuSign

    0 say LinkedIn is a good alternative to Slack 0 say LinkedIn isn’t a real alternative to Slack

    Comment
    Close cos 0.885

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

04 · Fingerprints

Technology

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