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Free tools for Slack developers

Slack Block Kit
templates.

Good messages make the next step obvious. Start with a thoughtful layout, make it yours, and ship the JSON.

Build a message with AIAlready have JSON? Preview it ↗

17 useful starting points.
Real Slack components.
No account. No strings attached.

Copy, customize, ship

17 templates

Engineering

Deployment notification

Keep deployments readable with service, version, environment, and links to the evidence. Includes success, failure, and rollback variants.

Block Kit JSON3 variants
Engineering

CI build notification

Surface failed checks with the branch, commit, failing job, and a direct link to the build.

Block Kit JSON2 variants
Engineering

Pull request review

Ask for a focused code review with the change summary, author, size, and review deadline.

Block Kit JSONReady to customize
Engineering

Release announcement

Announce a release with a concise changelog, rollout status, and full release notes.

Block Kit JSONReady to customize
Engineering

Application error alert

Turn an exception into an actionable alert with impact, frequency, ownership, and a trace link.

Block Kit JSONReady to customize
Incidents and operations

Incident alert

Coordinate an incident with severity, customer impact, an owner, and the next update time.

Block Kit JSON3 variants
Incidents and operations

Scheduled maintenance

Communicate a maintenance window with exact times, affected services, and expected customer impact.

Block Kit JSON2 variants
Incidents and operations

Security alert

Route a security finding to its owner with severity, affected scope, and a safe investigation link.

Block Kit JSONReady to customize
Customers and revenue

New customer signup

Welcome a new account with plan, acquisition source, and the right customer owner.

Block Kit JSONReady to customize
Customers and revenue

Payment received

Share a successful payment with amount, currency, invoice, and subscription context.

Block Kit JSONReady to customize
Customers and revenue

Payment failed

Make a failed payment actionable with the reason, next retry, and customer follow-up owner.

Block Kit JSONReady to customize
Customers and revenue

Subscription cancellation

Record a cancellation with effective date, revenue impact, and a concise customer reason.

Block Kit JSON2 variants
Team workflows

Approval request

Present a decision with the requester, cost, deadline, and explicit approve or decline actions.

Block Kit JSONReady to customize
Team workflows

Daily metrics digest

Summarize the day with key metrics, comparison periods, and a brief explanation of what changed.

Block Kit JSONReady to customize
Team workflows

Customer support ticket

Escalate a support ticket with customer impact, priority, ownership, and the response deadline.

Block Kit JSONReady to customize
Team workflows

Customer feedback

Share a customer insight with the original quote, product area, and research context.

Block Kit JSONReady to customize
Team workflows

Onboarding welcome

Welcome a teammate with a short first-day checklist, a named buddy, and useful starting links.

Block Kit JSONReady to customize
More than a message draft

Slack Block Kit examples
you can actually use.

Each template includes editable fields, a rendered preview, complete message JSON, screen-reader fallback text, and a curl example. These are structured Block Kit payloads for your Slack integrations, with headers, fields, context, and actions.

From example to your integration

  1. Choose a template and the variant that fits your event.
  2. Replace the sample values and links with your own.
  3. Check validation, then copy or download the JSON.
  4. Send it from your application with a Slack incoming webhook or the Slack Web API.

Templates work independently of Fryll. Interactive buttons need your Slack app to handle their actions; generating the layout does not implement the workflow.

01 / FIND A STARTING POINTBrowse all 17 templates →02 / BRING YOUR OWN JSONPreview & validate →03 / DESCRIBE YOUR MESSAGEGenerate with AI →

Independent tools by Fryll. Not affiliated with or endorsed by Slack.