Should I use Element or Slack?

Use Element if you need end-to-end encrypted chat you can self-host, federate with other organizations, or run air-gapped; use Slack if you want an easy, low-learning-curve tool with 1.7 million weekly active app integrations, Slackbot AI, and paid plans from $7.25/user/month billed annually.

Is Element cheaper than Slack?

Yes if you self-host — Element's Community edition is free under AGPL-3.0, while Slack's paid plans start at $8.75/user/month ($7.25 billed annually). Element's paid Enterprise and Sovereign tiers have no published prices, and Enterprise starts at 100 users.

Can Slack replace Element?

Partly — Slack covers team chat, calls, and external messages with a larger integration ecosystem, but the Slack listing data shows no self-hosting, air-gapped deployment, or federation between independently run servers. Organizations that chose Element for those reasons will not find them in Slack.

Is Element end-to-end encrypted?

Yes — Element offers end-to-end encrypted chat, voice, and video built on the Matrix open protocol. The Slack listing data does not describe end-to-end encryption, and Slack's DLP and legal holds sit on its custom-priced Enterprise+ tier.

Does Slack have a free plan?

Yes — Slack's Free plan includes 90 days of message history, up to 10 app integrations, 1:1 meetings, external messages, and basic AI features. Element's free Community edition is self-hosted and intended for evaluation and non-professional deployments.

Element vs Slack (2026)

By Noahlast updated October 23, 2026

Verdict: Choose Element if you need end-to-end encrypted, self-hosted chat that can federate with other organizations' servers or run fully air-gapped; NATO, UN agencies, and several European governments are among its users. Choose Slack if you want the easier tool, with a low learning curve, 1.7 million weekly active app integrations, Slackbot AI, and published plans from $7.25/user/month billed annually. The deciding factor is hosting and control: Element lets you own the server, but its paid tiers start at 100 users and have no published price.

Element

Matrix-based, end-to-end encrypted team chat client with a free AGPL community edition and paid Enterprise/Sovereign hosting for regulated organizations.

Pricing: Free
License: Open core

Best for government, defense, and enterprise organizations that need self-hosted, end-to-end encrypted chat with the option to federate across organizational boundaries

Visit element.io Read our review

Slack

Channel-based team messaging platform with a free tier and paid plans from $8.75/user/month, owned by Salesforce.

Pricing: Free tier · paid from $8.75/mo
License: Freemium

Best for teams that need organized, searchable chat with channels, quick huddles, and workflow automation, from small teams on the free tier up to large enterprises needing compliance controls

4.7/5 on Capterra (24,182 reviews)

Visit slack.com Read our review

Which should you choose?

Choose Element if…

wins 3/6 use cases

You need to self-host team chat, including fully air-gapped installs with no internet dependency (Sovereign)
You need end-to-end encrypted chat, voice, and video
You want to message other organizations on their own servers through Matrix federation
You want a free AGPL-3.0 edition to evaluate or run for non-professional use
You work in government or defense, where Element counts NATO, UN agencies, and European militaries among its users

Choose Slack if…

wins 3/6 use cases

You have fewer than 100 users and want a published paid plan: Pro at $7.25/user/month billed annually
You depend on third-party integrations, with 1.7 million apps actively used with Slack each week
You want built-in AI, including the Slackbot personal agent on Business+ at $15/user/month billed annually
You want Workflow Builder automation, Canvas documents, and Lists in the same tool as your chat
You need data loss prevention, information barriers, and legal holds (Enterprise+)

Element vs Slack: feature comparison

Feature	Element	Slack
Starting price	Yesfree Community edition (self-hosted)	Yesfree plan; Pro $8.75/user/mo ($7.25 billed annually)
Free tier	Partialself-hosted, for evaluation and non-professional use	Partial90-day message history, 10 app integrations
Published paid pricing	NoEnterprise and Sovereign require a sales quote	PartialPro and Business+ published; Enterprise+ custom
Paid plan for small teams	NoEnterprise starts at 100 users	YesPro from $7.25/user/mo (billed annually)
Platforms	Yesweb, Windows, macOS, Linux, iOS, Android	Yesweb, Windows, macOS, Linux, iOS, Android
License	PartialAGPL-3.0 Community; proprietary paid tiers	Noproprietary
Self-hosting	YesCommunity edition; air-gapped installs on Sovereign	No
End-to-end encryption	Yeschat, voice, and video	Unknown
Cross-organization messaging	YesMatrix federation between separately run servers	Partialexternal messages inside Slack
Audio and video calls	YesElement Call, included in Community	YesHuddles; group meetings from Pro
AI features	Unknown	Yesbasic AI on Free; Slackbot agent on Business+
App integrations	Unknown	Yes1.7 million weekly active apps; 10 on Free
Workflow automation	Unknown	YesWorkflow Builder; AI workflow generation on Business+
SSO	YesSSO/LDAP on Enterprise (100-user minimum)	Yesmultiple SAML configurations on Enterprise+
Compliance controls	Yesaudit logging and retention policies (Enterprise)	YesDLP, information barriers, legal holds (Enterprise+)
External rating (Capterra)	Unknown	Yes4.7/5 from 24,182 reviews
Learning curve	Partialmoderate	Yeslow

Element vs Slack: pricing

Every tier both tools publish, as we last checked them — not just the entry price.

Element

CommunityFree, AGPL-3.0-licensed self-hosted edition with Element Call included; intended for evaluation and non-professional deployments.Free
EnterprisePriced per seat/month, from 100 users; proprietary Element Server Suite Pro with SSO/LDAP, audit logging, retention policies, and autoscaling. Exact per-seat rate requires contacting sales.Custom
SovereignPriced per deployment for fully air-gapped, offline-capable installs aimed at government and defense customers. Requires contacting sales.Custom

Verified September 14, 2026Latest pricing

Slack

Free90-day message history, up to 10 app integrations, 1:1 meetings and external messages, basic AI features.Free
ProUnlimited message history, unlimited app integrations, group meetings and external messages, basic AI capabilities. $7.25/month billed annually.$8.75/mo
Business+Advanced AI including the Slackbot personal agent, AI workflow generation, and enterprise search, on top of everything in Pro. $15/month billed annually.$18/mo
Enterprise+Enterprise-grade AI, multiple SAML configurations, data loss prevention, information barriers, legal holds, unlimited workspaces. Contact sales.Custom

Verified September 14, 2026Latest pricing

Element vs Slack pricing: which costs less?

Element costs less only if you self-host the free AGPL-3.0 Community edition, while Slack's paid plans start at $8.75/user/month ($7.25 billed annually) and Element's paid Enterprise tier has no published price and starts at 100 users.

Slack Free keeps 90 days of message history and up to 10 app integrations. Slack Pro costs $8.75/user/month ($7.25 billed annually) with unlimited history and apps, Business+ costs $18 ($15 billed annually), and Enterprise+ is custom-priced. Element Community is free but intended for evaluation and non-professional deployments, and Element Community needs your own Synapse homeserver. Element Enterprise is priced per seat per month from 100 users through sales, and Sovereign is priced per deployment. A 20-person company cannot buy Element Enterprise, while Slack Pro would cost it $145/month billed annually.

Is Element more private than Slack?

Element has the stronger documented privacy model, with end-to-end encrypted chat, voice, and video, self-hosting, and fully air-gapped Sovereign deployments, while the Slack listing data describes compliance controls rather than end-to-end encryption.

Element's Enterprise tier adds SSO/LDAP, audit logging, retention policies, and autoscaling on a hardened Synapse Pro homeserver, and Element counts NATO, UN agencies, and several European governments and militaries among its users. Slack reserves multiple SAML configurations, data loss prevention, information barriers, and legal holds for its custom-priced Enterprise+ tier rather than Business+. Slack has been owned by Salesforce since 2021.

Which is easier to use, Element or Slack?

Slack is easier to use, with a low learning-curve rating against Element's moderate rating, and Capterra reviewers consistently praise Slack's ease of use across 24,182 reviews.

Slack organizes work into searchable channels and adds Huddles, Canvas documents, Lists, and Workflow Builder in one interface. Element's Community edition requires running and maintaining your own Synapse homeserver, and Element's dual AGPL and commercial licensing can confuse organizations unsure which terms apply.

Can Element replace Slack?

Yes for organizations whose priority is encrypted, self-hosted, or federated chat, but the Element listing data shows no equivalent to Slack's 1.7 million-app integration ecosystem, Workflow Builder, or Slackbot AI.

Element covers chat, voice, and video, including Element Call, on web, Windows, macOS, Linux, iOS, and Android, the same platform list as Slack. Teams under 100 users cannot buy Element Enterprise and would have to self-host the Community edition, which Element positions for evaluation and non-professional deployments. Large organizations can move to Element Enterprise, but they will need a sales conversation to learn the per-seat price.

Strengths and weaknesses

Element

Pros

Matrix federation allows cross-organization encrypted messaging without shared infrastructure.
Community edition is fully free and AGPL-licensed for self-hosting.
Sovereign tier supports fully air-gapped deployments with no internet dependency.
Native apps cover web, Windows, macOS, Linux, iOS, and Android.

Cons

Enterprise and Sovereign pricing is not published; both require contacting sales.
Enterprise tier only becomes available from a 100-user minimum, limiting its use for small teams.
Self-hosting the Community edition requires running and maintaining your own Synapse homeserver.
The dual AGPL/commercial licensing model can be confusing for organizations unsure which terms apply to their use case.

Slack

Pros

Organized, searchable channel-based messaging that scales better than a flat group-chat model.
Huge third-party integration ecosystem, including native Salesforce CRM and Google Drive integration.
Built-in Huddles provide quick audio/video calls without a separate meeting tool.
AI-powered search, summarization, and workflow automation available on Business+.

Cons

Free tier's 90-day message history is limiting for active teams.
Advanced compliance features (SAML, DLP, legal holds) require the custom-priced Enterprise+ tier.
Per-user pricing adds up for larger teams, especially at the $18/user/month Business+ tier.
Some advanced AI features are gated behind Business+ rather than included in Pro.

Which fits your use case?

Use case	Pick	Why
Government or defense agency that needs chat with no internet dependency	Element	Element Sovereign supports fully air-gapped, offline installs; the Slack listing data shows no self-hosted option.
Startup of 15 people that wants unlimited message history	Slack	Slack Pro gives unlimited history at $7.25/user/month billed annually, while Element Enterprise starts at 100 users.
Organizations that need to message partners running their own servers	Element	Matrix federation lets a self-hosted Element server exchange encrypted messages with users on other organizations' servers.
Team that runs on third-party integrations and no-code automation	Slack	Slack connects to 1.7 million weekly active apps and includes Workflow Builder; the Element data lists neither.
Large enterprise that needs legal holds and data loss prevention	Slack	Slack Enterprise+ includes DLP, information barriers, and legal holds; Element Enterprise lists audit logging and retention policies instead.
Privacy-focused team that wants end-to-end encrypted calls	Element	Element encrypts chat, voice, and video end to end; the Slack listing data does not describe end-to-end encryption.

Neither a match?

Both lists carry verified pricing and honest weaknesses for every option.

4 alternatives to Element 5 alternatives to Slack

Popular comparisons

Element vs Slack: migration FAQ

Should I use Element or Slack?: Use Element if you need end-to-end encrypted chat you can self-host, federate with other organizations, or run air-gapped; use Slack if you want an easy, low-learning-curve tool with 1.7 million weekly active app integrations, Slackbot AI, and paid plans from $7.25/user/month billed annually.
Is Element cheaper than Slack?: Yes if you self-host — Element's Community edition is free under AGPL-3.0, while Slack's paid plans start at $8.75/user/month ($7.25 billed annually). Element's paid Enterprise and Sovereign tiers have no published prices, and Enterprise starts at 100 users.
Can Slack replace Element?: Partly — Slack covers team chat, calls, and external messages with a larger integration ecosystem, but the Slack listing data shows no self-hosting, air-gapped deployment, or federation between independently run servers. Organizations that chose Element for those reasons will not find them in Slack.
Is Element end-to-end encrypted?: Yes — Element offers end-to-end encrypted chat, voice, and video built on the Matrix open protocol. The Slack listing data does not describe end-to-end encryption, and Slack's DLP and legal holds sit on its custom-priced Enterprise+ tier.
Does Slack have a free plan?: Yes — Slack's Free plan includes 90 days of message history, up to 10 app integrations, 1:1 meetings, external messages, and basic AI features. Element's free Community edition is self-hosted and intended for evaluation and non-professional deployments.