# Element vs Slack (2026)

By Noah — last updated & pricing verified 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.

**Choose Element if:** 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:** 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+)

## At a glance

|  | Element | Slack |
| --- | --- | --- |
| Pricing | Free | Free tier · paid from $8.75/mo |
| License | Open core | Freemium |
| Best for | government, defense, and enterprise organizations that need self-hosted, end-to-end encrypted chat with the option to federate across organizational boundaries | 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 |
| Ratings | — | Capterra 4.7/5 (24,182 reviews) |

## Feature comparison

| Feature | Element | Slack |
| --- | --- | --- |
| Starting price | Yes (free Community edition (self-hosted)) | Yes (free plan; Pro $8.75/user/mo ($7.25 billed annually)) |
| Free tier | Partial (self-hosted, for evaluation and non-professional use) | Partial (90-day message history, 10 app integrations) |
| Published paid pricing | No (Enterprise and Sovereign require a sales quote) | Partial (Pro and Business+ published; Enterprise+ custom) |
| Paid plan for small teams | No (Enterprise starts at 100 users) | Yes (Pro from $7.25/user/mo (billed annually)) |
| Platforms | Yes (web, Windows, macOS, Linux, iOS, Android) | Yes (web, Windows, macOS, Linux, iOS, Android) |
| License | Partial (AGPL-3.0 Community; proprietary paid tiers) | No (proprietary) |
| Self-hosting | Yes (Community edition; air-gapped installs on Sovereign) | No |
| End-to-end encryption | Yes (chat, voice, and video) | Unknown |
| Cross-organization messaging | Yes (Matrix federation between separately run servers) | Partial (external messages inside Slack) |
| Audio and video calls | Yes (Element Call, included in Community) | Yes (Huddles; group meetings from Pro) |
| AI features | Unknown | Yes (basic AI on Free; Slackbot agent on Business+) |
| App integrations | Unknown | Yes (1.7 million weekly active apps; 10 on Free) |
| Workflow automation | Unknown | Yes (Workflow Builder; AI workflow generation on Business+) |
| SSO | Yes (SSO/LDAP on Enterprise (100-user minimum)) | Yes (multiple SAML configurations on Enterprise+) |
| Compliance controls | Yes (audit logging and retention policies (Enterprise)) | Yes (DLP, information barriers, legal holds (Enterprise+)) |
| External rating (Capterra) | Unknown | Yes (4.7/5 from 24,182 reviews) |
| Learning curve | Partial (moderate) | Yes (low) |

## 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

- Pro: Matrix federation allows cross-organization encrypted messaging without shared infrastructure.
- Pro: Community edition is fully free and AGPL-licensed for self-hosting.
- Pro: Sovereign tier supports fully air-gapped deployments with no internet dependency.
- Pro: Native apps cover web, Windows, macOS, Linux, iOS, and Android.
- Con: Enterprise and Sovereign pricing is not published; both require contacting sales.
- Con: Enterprise tier only becomes available from a 100-user minimum, limiting its use for small teams.
- Con: Self-hosting the Community edition requires running and maintaining your own Synapse homeserver.
- Con: The dual AGPL/commercial licensing model can be confusing for organizations unsure which terms apply to their use case.

### Slack

- Pro: Organized, searchable channel-based messaging that scales better than a flat group-chat model.
- Pro: Huge third-party integration ecosystem, including native Salesforce CRM and Google Drive integration.
- Pro: Built-in Huddles provide quick audio/video calls without a separate meeting tool.
- Pro: AI-powered search, summarization, and workflow automation available on Business+.
- Con: Free tier's 90-day message history is limiting for active teams.
- Con: Advanced compliance features (SAML, DLP, legal holds) require the custom-priced Enterprise+ tier.
- Con: Per-user pricing adds up for larger teams, especially at the $18/user/month Business+ tier.
- Con: 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. |

## 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.

## Neither a match?

- 4 alternatives to Element: https://findalternative.to/element
- 5 alternatives to Slack: https://findalternative.to/slack

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