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PRODUCT

Every capability your team needs. Built so your whole team can use them.

Template authoring, event-driven automation across five channels, segmentation, analytics, and pre-send quality checks — in one platform. The same system serves the marketer who writes the message and the engineer who wires the integration.

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8 categories

Smart Suggester

Turn templating from a syntax problem into a selection problem. Eight categories, schema-aware variables, live preview.

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3 trigger types

Flows

Build automated sequences triggered by real business events, branching across every channel you send on. Visual canvas, version history.

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4 send types

Campaigns

Immediate, scheduled, recurring, and event-triggered sends with A/B testing, qualification filters, and rate limits.

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20 filter operators

Segmentation & Analytics

Visual rule builder with 20 filter operators and live match counts. Cohort retention, funnel analysis, and custom reports.

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5 stages

Inspect

Five-stage email quality pipeline — static analysis, external resources, spam scoring, vendor rendering, visual diff.

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AI Assistant

Synapse Chat reads your template, applies edits, explains errors, and writes NLT from plain-English descriptions.

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Built into the platform, not bolted on.

Cross-cutting capabilities available on every plan.

Test/live isolation

Fully separated environments on every plan, including Free. Build in test with real sends to verified addresses, then clone to production in one click.

15 providers detected

Sender domains

SPF, DKIM, and DMARC configured in minutes. DNS provider auto-detected, one-click setup for Cloudflare, automated verification.

Developer experience

REST API, a published browser SDK, scoped API keys with granular permission levels, webhooks, and a dead letter queue inspector.

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NLT

Synapse’s foundational templating language. Plain-English syntax designed alongside the Smart Suggester — readable by marketers, reviewable by compliance, expressive enough for engineers.

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See every capability working together.

Free tier — every feature available from the first send. No credit card required, no feature paywalls.

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