Open-source PythonAnywhere alternatives

Coolify is an open-source, self-hostable alternative to Heroku, Vercel and Netlify. It manages servers, applications and databases on hardware you control, and the only requirement is SSH access, so a VPS, a bare-metal machine or even a Raspberry Pi can serve as a target. Your configuration stays on your own servers, and if you stop using Coolify the resources it deployed keep running.

Applications can be built from GitHub, GitLab, Bitbucket or Gitea using Nixpacks, Railpack, a Dockerfile, Docker Compose or a prebuilt image. Hundreds of one-click services and managed-style databases come with persistent storage and generated credentials. Deployments can run on every push, create pull-request previews, call webhooks and roll back to retained images. Custom domains, automatic HTTPS, reverse proxies and health checks cover networking, while logs, container terminals and resource monitoring help with operations.

Backups, scheduled tasks, secrets, environment variables and notifications are built in, and resources can be managed through the dashboard, an API, a CLI or MCP, with team-based access controls. Coolify is Apache-2.0 licensed and built mainly with PHP; a hosted Coolify Cloud option exists for people who prefer not to run the control plane themselves.

Dokploy is an open-source, self-hostable platform as a service that simplifies deploying and managing applications and databases. It is positioned as an alternative to Heroku, Vercel and Netlify, and it runs on a VPS you control, installed with a single command.

It can deploy apps in languages such as Node.js, PHP, Python, Go and Ruby, create and manage MySQL, PostgreSQL, MongoDB, MariaDB, libsql and Redis databases, and schedule database backups to external storage. Docker Compose is supported natively, and multiple nodes can be clustered with Docker Swarm or managed as remote servers. One-click templates cover open-source apps such as Plausible, PocketBase and Cal.com, Traefik handles routing and load balancing, and live monitoring shows CPU, memory, storage and network usage per resource.

A CLI and API allow automation, and notifications about deploy success or failure can go to Slack, Discord, Telegram or email. The license is listed as 'Other', so check the repository terms before redistribution. For people who want to skip installation there is a hosted Dokploy Cloud.

Dokku is a Docker-powered platform as a service that you install on your own server. It is billed as the smallest PaaS implementation around and as an open-source alternative to Heroku, helping you build and manage the full lifecycle of applications, from building them to scaling them.

Installation uses a bootstrap script that you run on a fresh server, after which you set a global domain and add your SSH key to the dokku user, then create apps and deploy to them. Topics refer to buildpack-based builds, containers, and scheduler support for Docker, Kubernetes and Nomad. The project has documentation, a blog, community chat on Discord, Slack and IRC, GitHub Discussions, and a Pro offering listed on the site.

Dokku is MIT licensed and written in Go and shell, with sponsors and backers supporting its development. It suits developers who like the Heroku workflow but want to run it on their own VPS for less cost or more control.

CapRover is a deployment platform and web server manager that you install on your own server. It lets you run applications written in NodeJS, Python, PHP, ASP.NET, Ruby and Go, as well as databases like MariaDB, MySQL, MongoDB and Postgres, and apps such as WordPress, without needing deep Docker or nginx knowledge. It is often called a Heroku alternative.

Under the hood it uses Docker Swarm for containerization and clustering, nginx with a customizable template for load balancing, Let's Encrypt for free HTTPS certificates, and NetData for monitoring. You work through a web GUI for convenience or a CLI for automation and scripting. The project emphasizes that there is no lock-in: if you remove CapRover, your apps keep working. It targets developers who do not want to spend days setting up servers, builds, certificates and proxy configuration.

CapRover is written in TypeScript on Node.js, and its license is listed as 'Other' on GitHub, so confirm the terms. It is self-hosted software with no vendor service involved, and it suits small teams and solo developers running several apps on their own VPS.

Piku is an open-source, minimalist platform-as-a-service for people who like the git push deployment workflow popularized by Heroku but want to run it on their own hardware. It was inspired by Dokku and is designed to work on very small machines, including ARM boards such as the Raspberry Pi, as well as ordinary Ubuntu or Raspbian servers and cloud VMs.

You deploy by pushing to a git remote on your server. Piku reads a Procfile to learn which processes to run and uses environment settings to configure each app, with Python and Node.js applications among the supported kinds. The project documents several install paths, including cloud-init and manual setup, and offers a command line interface, a roadmap, examples and a discussion forum. The maintainers describe the project as stable.

Piku is released under the MIT license and is meant to be self-hosted; there is no managed cloud version. It suits hobbyists, small teams and edge deployments that want a lightweight way to host apps without running Kubernetes or a full container platform.