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Kling.to

Self-hosted email marketing with full data ownership

Details

External ID
46667519
Source
HN
Company
—
Product
Kling.to
Website domain
kling.to
Launched
Jan. 18, 2026
Cohort
—
Upvotes
10
Upvotes percentile
0.5006587615283268
Tags
—
Fetched at
Sept. 7, 2026, 9:25 p.m.
Updated at
Sept. 7, 2026, 9:25 p.m.

Description

I'm Caesar, and I built kling.to because I believe marketing automation should be accessible to everyone without sacrificing data ownership.Kling is a self-hosted email marketing platform that lets you run campaigns, build automation workflows, segment audiences, and track attribution while keeping full control of your customer data. It deploys via Docker and uses MongoDB with BullMQ for job scheduling.Core capabilities: - Visual workflow builder for abandoned cart recovery, win-back campaigns, and post-purchase sequences - Multi-channel messaging (email, SMS, WhatsApp, push notifications) - Last-touch and multi-touch attribution tracking - Customer segmentation with purchase history and engagement data - Template management with personalization variables - Real-time deliverability monitoring (sent, delivered, opened, clicked, bounced)I started this project because existing marketing automation tools either lock you into their infrastructure or cost too much for small teams. We're giving businesses the choice to self-host and own their data.The platform is built for e-commerce stores, engineering-led teams, and privacy-conscious organizations that want control over their marketing stack.I'd value feedback on: - Architecture choices (MongoDB + BullMQ for job scheduling) - Deliverability infrastructure for self-hosted setups - Automation workflow UX and trigger logic - Attribution model implementationDemo video: https://youtu.be/hbFjX525AwA Website: https://kling.toHappy to answer questions about the technical implementation or deployment process.

Enrichment

Theme
ai crm and sales automation
Vertical
Marketing
Function
Vertical SaaS
Audience
B2B
AI stance
Not AI
Project type
Commercial product
Normalized one-liner
self-hosted email marketing platform
Manually corrected
False

Could you build this?

Partial Basic email campaign builders and recipient lists are vibe-codeable, but a full Klaviyo-like automation platform requires high-throughput event ingestion, resilient workflow state machines, and dynamic segmentation.

What it would actually take: A production-grade marketing automation engine requires an event ingestion pipeline (e.g., Kafka or Redis Streams paired with ClickHouse) to process high-frequency e-commerce tracking events and evaluate dynamic segmentation queries. The marketing automations require a durable workflow orchestrator (such as Temporal or BullMQ state machines) to manage branching conditions, delay timers, and retries. Additionally, it requires integration with high-volume SMTP/SES pipelines with strict bounce/complaint handling and deliverability tracking.

Discussion

2 comments analyzed.

Concerns raised: Limited core capabilities beyond basic automation workflows, Attribution tracking not useful in isolation without broader platform integration, Basic personalization (first name only) insufficient for serious marketers, Deliverability metrics need filtering for non-human interactions

Feature requests: Proper templating language for advanced personalization, Support for more automation use cases beyond abandoned cart and win-back, Non-human interaction filtering in deliverability reports

Competitors

Other products that read as similar to this one — 42 launches clear the similarity bar, closest 8 shown.

Attention rank: #26 of 43 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).

Launched 79 days after the earliest competitor.

Other launches for this product

Same idea, different domain

Nobody's really built a vertical saas tool for Insurance yet.