Slack Pro

Run a small private team chat with channels, threads, files, and search

NOT REALLY · consider alternatives
price $8.75/mo per seatsubscription / year $105estimated build time closest consolation build: one sittingreplaced by 0 people

A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Slack Pro, run a small private team chat with channels, threads, files, and search. The hard boundary is existing team network, integrations, push delivery, enterprise controls, and global reliability, plus network, moderation, and communication infrastructure.

Build verification: not recorded. How we judge buildability

What you give up

  • existing team network, integrations, push delivery, enterprise controls, and global reliability
  • network effects
  • native mobile apps
  • video and voice infrastructure
  • enterprise moderation and discovery

Why people still pay

People still pay for Slack Pro because community software is valuable when members are already there and the operator does not have to own realtime reliability and abuse response. The recurring cost buys realtime delivery, notifications, abuse handling, search, media, permissions, mobile clients, backups, and community operations, not just the visible interface.

Your build guide

The stack, security requirements, and agent rules for a focused replacement.

Before you start

  • Docker
  • PostgreSQL
  • public HTTPS deployment
  • email provider
  • object storage for attachments
01
Use Next.js 15, TypeScript, PostgreSQL, Drizzle ORM, WebSockets, and Docker Compose.
02
Model the inputs, state transitions, and outputs named in this online communities and team communication prompt; keep source IDs and timestamps.
03
Interface for this online communities and team communication workflow: a local web page with input, progress, review, and export views.
engineering roadmap

Implementation plan

1

Phase 1, architecture and data

Use Next.js 15, TypeScript, PostgreSQL, Drizzle ORM, WebSockets, and Docker Compose. Model the inputs, state transitions, and outputs named in this online communities and team communication prompt; keep source IDs and timestamps.

2

Phase 2, implement

Implement spaces, channels, topics, replies, reactions, mentions, profiles, roles, and invitations.

3

Phase 3, implement

Add moderation queues, reports, blocks, rate limits, attachment limits, and an audit log.

4

Phase 4, review and output

Add owner-controlled retention, account deletion, backup, restore, and health checks. Provide email digests, browser notifications, search, pinned content, and member export.

5

Phase 5, recovery and acceptance

Add moderation queues, reports, blocks, rate limits, attachment limits, and an audit log. Verify this invariant with a saved fixture: A removed post must not reappear from a delayed notification; permission checks must apply to every read and write. State the practical limit: existing team network, integrations, push delivery, enterprise controls, and global reliability.

the pro prompt
Build me a focused online communities and team communication workflow for the personal core of Slack Pro. Requirements:

- Use Next.js 15, TypeScript, PostgreSQL, Drizzle ORM, WebSockets, and Docker Compose. Model the inputs, state transitions, and outputs named in this online communities and team communication prompt; keep source IDs and timestamps.
- Paid product context: Run a small private team chat with channels, threads, files, and search. Build only this DIY scope: Run a small private team chat with channels, threads, file sharing, and search, and keep membership and moderation under the owner's control.
- Implement spaces, channels, topics, replies, reactions, mentions, profiles, roles, and invitations.
- Add moderation queues, reports, blocks, rate limits, attachment limits, and an audit log.
- Add owner-controlled retention, account deletion, backup, restore, and health checks.
- Use a local web page with input, progress, review, and export views. Required input or access: Docker; public HTTPS deployment.
- Recovery: Add moderation queues, reports, blocks, rate limits, attachment limits, and an audit log.
- Acceptance: with one labelled sample, show the input, saved intermediate state, and exported result; verify this invariant: A removed post must not reappear from a delayed notification; permission checks must apply to every read and write.
- Out of scope: existing team network, integrations, push delivery, enterprise controls, and global reliability; network effects. Keep this a personal, inspectable workflow.
- Include a README with setup, a sample input, required keys or permissions, data location, and the supported scope.

$ open in your agent (prompt prefilled, you press enter), copy the prompt or copy AGENTS.md · generated from this app's build plan

share on X ↗

Alternatives to building your own

Rocket.Chat CommunityChannels, threads, files and integrations for up to a hundred concurrent users; MongoDB is the hidden teammate.46kaug 2026open source↗MMattermost Team EditionSlack-shaped chat below 250 users, self-hosted; the subscription disappears and the pager appears.39kaug 2026open source↗ZulipTopic-first team chat with full history and excellent search; fewer drive-by messages survive.26kaug 2026open source↗

all 6 free alternatives to Slack Pro →· no votes, no pay-to-list · just what's real

Slack Pro pricing

planmonthlyannual (per mo)what you get
free$0/workspace$0/workspace90 days of searchable message/file history; up to 10 app integrations; 1:1 huddles; 1:1 Slack Connect
pro$8.75/user$7.25/userUnlimited message/file history and integrations; group huddles; Slack Connect with up to 250 organizationsA limited new-workspace promotion may discount the first 3 monthly-billed months by 50%; standard prices are recorded here.
business+$18/user$15/userUnlimited history/integrations; group huddles; up to 250 Slack Connect organizations; SAML SSO and SCIM; 4-hour support responseStandard prices; temporary acquisition discount excluded.
enterprise+——Enterprise organization, security, compliance and administrationCustom quote.

free tier90-day message/file history; 10 app integrations; 1:1 huddles; 1:1 Slack Connect

billingmonthly + annual

hidden costsA paid plan applies to the whole workspace. Active-member/fair-billing adjustments are prorated; multi-channel guests count as paid members while eligible single-channel guests can be free. The advertised 50%-for-3-months offer is temporary and only for eligible new monthly-billed workspaces.

pricing sources checked 2026-08-12 · pricing source ↗

Questions about Slack Pro

Can you build your own Slack Pro with AI?

A full replacement is not the recommended project. A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Slack Pro, run a small private team chat with channels, threads, files, and search. The hard boundary is existing team network, integrations, push delivery, enterprise controls, and global reliability, plus network, moderation, and communication infrastructure.

What does the Slack Pro build prompt cover?

The prompt starts with this scope: Run a small private team chat with channels, threads, file sharing, and search, and keep membership and moderation under the owner's control. Full-product capabilities excluded from the comparison include: existing team network, integrations, push delivery, enterprise controls, and global reliability; network effects; native mobile apps. Follow the implementation plan and its prerequisites before expanding the build.

How do I use the prompt, AGENTS.md and agent skills?

Start with the Slack Pro prerequisites and stack, then copy the prompt into your coding agent. Save the project rules as AGENTS.md in the project root. Linked skills are optional packages or source instructions for specific tasks; review their current contents and install only those matching the chosen stack. A skill does not supply API credentials or verify the finished app.

How long will this Slack Pro project take?

The catalogue estimate is closest consolation build: one sitting for the limited scope. Setup, integration approvals, debugging, deployment and ongoing maintenance can add time. This is an estimate, not a delivery guarantee.

What would I give up by replacing Slack Pro?

existing team network, integrations, push delivery, enterprise controls, and global reliability; network effects; native mobile apps; video and voice infrastructure; enterprise moderation and discovery. People still pay for Slack Pro because community software is valuable when members are already there and the operator does not have to own realtime reliability and abuse response. The recurring cost buys realtime delivery, notifications, abuse handling, search, media, permissions, mobile clients, backups, and community operations, not just the visible interface.

What price is this guide comparing against?

The recorded Pro plan is $8.75/mo per seat (monthly per user), checked 2026-07-31. Check the linked pricing source before buying. Building your own also has hosting, API and maintenance costs; the recorded amount is not a guaranteed saving.

What can I use instead of building Slack Pro?

Rocket.Chat Community: Channels, threads, files and integrations for up to a hundred concurrent users; MongoDB is the hidden teammate. Mattermost Team Edition: Slack-shaped chat below 250 users, self-hosted; the subscription disappears and the pager appears. Zulip: Topic-first team chat with full history and excellent search; fewer drive-by messages survive. Compare all listed options at https://howtovibecodeit.dev/slack-pro/alternatives. Check each option's license, hosting needs and feature limits.

Every week, more subscriptions die.

New verdicts, new prompts, the week's most-doomed apps.
One email. Unsubscribe in one click.

last week:100 Questions · KINDA1of10 · KINDA1Password · KINDA+1090 more

free forever · no scanner spam · the prompt stays on the site, the deaths come to you

$weekly: what got a verdict, what died.