SlackMock is an offline, pixel-faithful Slack simulator. Design a workspace in minutes, walk the client through it live, and capture sign-off as a portable file — no Slack license, no admin access, no risk to a live workspace.
Free to use · Runs entirely on your machine · Nothing leaves your device
Getting a company "properly set up on Slack" is real work — channel architecture, naming conventions, public vs. private policy, onboarding, and increasingly automation: bots and AI agents posting structured updates into channels. But everyone who does this hits the same wall.
Pre-sales demos and requirements workshops that close scope fast.
Repeatable, branded discovery tooling across many clients.
Design exactly what automated messages look like before writing code.
Sell a rollout or reorg to leadership with something tangible.
Show how your app appears inside a customer's workspace.
Realistic screenshots and demos with no real PII — nothing leaves the device.
Brand the mock with the prospect's company, logo, and real team names. Show them their Slack after you implement. Tailored demos win.
Walk the channel structure live and capture decisions visually. The exported JSON becomes the spec everyone agreed to.
Mock the messages your bots, Workflows, and AI agents will post — format, channel, cadence — and get the look approved before you build the integration.
Show employees the new workspace before rollout. Generate onboarding screenshots from a safe, realistic environment.
Export several competing channel taxonomies and compare them side by side with the client.
Realistic Slack visuals for proposals, docs, and case studies — no real data, fully offline.
Set the workspace name and logo, add people with photos, lay out channels and group DMs. Or let Claude do it from a one-line brief.
Walk the client through it in the native app. Switch users to show what each role sees.
Save the whole workspace to a JSON file. Portable, version-controllable, and diffable.
Turn the approved file into the real workspace via Slack's APIs — channels, members, and starter messages.
Fill in a short brief — company name, team roles, channels you need, any bots or automations — and paste it to Claude. You get back a complete, ready-to-import SlackMock workspace in one response.
No back-and-forth. No manual JSON. One message from you, a full demo from Claude.
See how it worksNo network calls. Use the client's real org details safely — nothing leaves the machine. Demos work with no Wi-Fi.
Zero setup cost per demo and zero risk to a live workspace. No admin access required.
Each workspace is one file — reusable, diffable for before/after reorgs, and templatable into industry starter packs.
Reads as a real product in a client meeting — not "a website" — and screenshots cleanly.
SlackMock starts as a demo tool. The roadmap turns it into a wedge across the whole Slack implementation lifecycle.
Once the JSON is approved, push it to a real Slack workspace via the Admin / SCIM / Conversations APIs. The mock stops being a drawing and becomes the build automation — design and delivery in one artifact.
Pull an existing workspace's structure into a mock, redesign it visually, and present "today vs. cleaned-up." A recurring governance engagement.
Every Slack partner needs discovery and demo tooling. Ship SlackMock as a branded, per-firm pre-sales kit.
Best-practice setups per industry and scenario become a reusable, sellable asset — and a fast start for every engagement.
Download the macOS app, load a sample workspace, and demo in minutes.
Free to use · Build a demo library of reusable workspace configs
SlackMock is finishing up. Join the waitlist and you'll get the app free forever — no strings attached.
We'll reach out as soon as SlackMock is ready. As a waitlister, you'll get the app free forever.
