blitz.cloud docs
How to deploy Docker images, GitHub projects, one-click apps and managed databases on blitz.cloud, the hosting platform run by BlitzWorks in Germany.
blitz.cloud hosts apps under an address you own, like photos.lena.blitz.cloud. Today you can run any public Docker image from Docker Hub, build any public GitHub project from its source, or install one of the apps in the App Store, give it a managed database, and get HTTPS without setting anything up.
New here? Start with getting started. If you want to know whether something works yet, what's live is the honest list.
Getting started with blitz.cloud
Create a free blitz.cloud account, claim your address and put your first app or Docker image online. No credit card, no terminal needed.
Deploy a Docker image on blitz.cloud
Run any public Docker Hub image on blitz.cloud with HTTPS, environment variables and persistent storage. Requirements, ports and what can go wrong.
Deploy a GitHub project on blitz.cloud
Point blitz.cloud at a public GitHub repository and it builds the code and puts it online with HTTPS. How the build works, which port is used and what fails.
App Store - one-click open-source apps on blitz.cloud
The 13 open-source apps you can install in one click on blitz.cloud, what each one needs, and which ones don't run on the platform yet.
Managed databases on blitz.cloud - PostgreSQL, MariaDB, Redis
Create managed PostgreSQL 17, MariaDB 11.4 or Redis (Valkey 8) databases on blitz.cloud, connected to your app automatically and backed up every night.
Database backups and restore on blitz.cloud
blitz.cloud copies every database off-site every night and keeps 7 nights on the free plan. How restore works, and what is not backed up yet.
Addresses, subdomains and HTTPS on blitz.cloud
How your blitz.cloud address and app subdomains work, the naming and rename rules, automatic Let's Encrypt certificates, and the status of custom domains.
App status, logs and troubleshooting on blitz.cloud
What Starting, Online, Needs attention and Paused mean on blitz.cloud, how live logs work, and how to fix the usual reasons a Docker image won't start.
Environment variables and persistent files on blitz.cloud
Set encrypted environment variables for your apps on blitz.cloud and keep files across restarts with persistent storage. Limits and what isn't backed up.
blitz.cloud plan limits - apps, memory, storage and databases
Exact limits of the blitz.cloud free plan: 15 apps, 2 GB memory, 10 GB storage, 1 database. How memory is reserved per app, CPU, and what is not limited.
Account security on blitz.cloud - passkeys, 2FA and sessions
Sign in to blitz.cloud with email, GitHub or Google, and protect the account with passkeys, authenticator app codes and per-device session sign-out.
Put your first app online today.
Free plan, no credit card, no waiting list.
Create a free account