BLOCK-BASED EMAIL TEMPLATES

Blocks your devs lock. Campaigns your marketers ship.

Devs define email blocks in MJML — structure locked, slots exposed. Marketers assemble and edit only what's editable. Output that cannot go off-brand or break in Outlook.

MJML in, clean HTML out. Your templates in git — not our JSON.
FOOTER.MJML · WHAT DEVS LOCK
<mj-section bg="{{token:paper}}">
  <mj-column>
    {{ slot: legal_text }}
    {{ slot: unsub_link }}
  </mj-column>
</mj-section>
v3SYNCED · 12 TEMPLATES
FOOTER · WHAT MARKETERS EDIT
{{ slot: legal_text }}
© 2026 Acme Inc · 100 Main St, Nairobi
{{ slot: unsub_link }}
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structure locked · cannot break
01

Update your footer once. Everywhere.

Blocks sync across every template that uses them. Ship footer v3; twelve templates update — with review, not surprises.

02

Stop spending more time testing than designing.

QA happens once per block version, not once per campaign. Outlook checks are built in, not a $99/mo add-on.

03

Clean HTML into every ESP. No weird padding.

Export tuned per destination — Mailchimp, HubSpot, Klaviyo, Brevo — or serve compiled HTML from the API.

One system. Two roles. Zero round-trips.

BLOCK STUDIODevs write blocks in MJML.Slots and tokens declared in code. Versioned. Lives in the app or in your repo via CLI. The block format is open.
CAMPAIGN BUILDERMarketers assemble, not rebuild.Drag blocks, edit slots, stay inside the brand kit. Accurate mobile and desktop preview. No layout roulette.
DELIVERYServe everywhere. Trust the output.Central storage, versioned. One-click export per ESP, or fetch compiled HTML by ID from the Template API.
PLANNED

Flat. Public. No metering surprises.

Free$0/mo

1 workspace · starter blocks · 3 templates · export with Tuma badge

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Studio$29/mo

Unlimited templates · custom blocks · brand kit · all export targets · no badge

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Agency$99/mo

Client workspaces · white-label · roles & permissions · priority export targets

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