Automate Document Workflows, Faster

Send smarter, deliver faster with a local document engine

Generate personalized LaTeX PDFs from templates and CSV data, then automatically deliver them to your entire audience by email. Open-source, runs on your machine.

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Relay Dashboard screenshot

Built with Modern Open-Source Technologies

Next.js
React
Prisma
Node.js
Docker
Tailwind
PostgreSQL
TypeScript
LaTeX
AWS SES

Why Choose Us

We are Leading in Document Automation
with High-Performance Tools

We are constantly keeping pace with modern open-source standards.

Dynamic PDF Generation

Compile beautifully formatted LaTeX templates instantly. Just map your CSV data and generate unforgeable PDFs at scale.

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Local First & Secure

Your data never leaves your machine. Connect your own AWS SES or SMTP server and retain 100% data sovereignty over your email lists.

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Batch Email Dispatch

Our decoupled Node.js background worker flawlessly queues and dispatches thousands of emails while you monitor the progress in real-time.

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Our Features

Experience the Difference
with Relay

We excel in delivering an open-source solution that matches enterprise needs.

RelaySaaS PlatformsManual Scripts
Zero Monthly SaaS Fees
Complete Data Privacy
Dynamic PDF Generation
Visual Template Editor
Automated Dispatch Queue

Frequently Asked Questions

Find answers to common questions about setting up and using Relay.

What do I need to run Relay?

Just Node.js and Docker (for LaTeX). Relay is fully self-hosted and incredibly lightweight.

Can I use my own SMTP server?

Yes, Relay supports any standard SMTP server or direct integration with Resend/AWS SES.

Is it really free?

Yes, Relay is 100% open-source and free to use forever. You only pay your email provider for the emails you send.

Are the PDFs customizable?

Absolutely. Relay uses a robust LaTeX engine, allowing pixel-perfect precision and dynamic variables pulled straight from your CSV.