Open-source email infrastructure that works. REST API, SMTP relay, campaigns, contact management, and real-time webhooks self-hosted or managed on bytesend.cloud.

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Cloud

The fastest way to get started is the managed cloud at bytesend.cloud. No infrastructure to manage just sign up, verify a domain, and start sending.

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Self-Hosting

ByteSend is fully self-hostable under the AGPL-3.0 license.

git clone https://github.com/NodeByteLTD/ByteSend.git
cp docker/prod/.env.example docker/prod/.env
# fill in your values
docker compose -f docker/prod/compose.yml --env-file docker/prod/.env up -d
docker compose -f docker/prod/compose.yml --env-file docker/prod/.env exec web pnpm db:migrate-deploy

Full setup guide (reverse proxy, TLS, firewall, SMTP relay): docs.bytesend.cloud/self-hosting/overview

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Tech Stack

Framework	Next.js 15 (App Router)
Language	TypeScript
Database	PostgreSQL + Prisma
Cache	Redis
Email delivery	AWS SES
Auth	NextAuth.js v5
Monorepo	Turborepo + pnpm

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Development

pnpm install
cp .env.example .env   # fill in values, then symlink: ln -s ../../.env apps/web/.env
pnpm dev               # starts app at http://localhost:3000
pnpm db:migrate-dev    # run migrations

See docs.bytesend.cloud/get-started/local for the full local setup guide.

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Contributing

1. Fork the repo and create a feature branch
2. Commit with Conventional Commits
3. Open a pull request against main

Please check existing issues before opening a new one.

See also:

• Contributing Guide
• Code of Conduct
• Security Policy
• Support

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License

ByteSend is licensed under the GNU Affero General Public License v3.0 (AGPL-3.0).

See LICENSE for full details.