Best VPS for Flowise in 2026
Flowise is a drag-and-drop LLM flow builder. Find the best VPS for hosting your AI chatbots and workflows. We tested the top 5 VPS providers to find which one delivers the best performance and value for running Flowise.
Hetzner is the Best VPS for Flowise
With competitive pricing starting at $4.15/mo, excellent performance, and European data centers, Hetzner offers the best value for hosting Flowise.
Get Hetzner VPS →What is Flowise?
Flowise is an open-source low-code tool for building customized LLM orchestration flows and AI agents. Its drag-and-drop UI makes it easy to create chatbots, document loaders, vector store integrations, and multi-step AI chains without deep coding knowledge.
Self-hosting Flowise on a VPS keeps your AI workflows private and gives you full control over connected data sources. A VPS with reliable uptime ensures your chatbots and AI agents stay available around the clock.
Self-hosting Flowise on a VPS gives you full control over your data, better performance, and lower long-term costs compared to managed solutions. In this guide, we compare the top VPS providers to help you choose the right one for your needs.
Minimum Server Requirements for Flowise
| Resource | Minimum | Recommended |
|---|---|---|
| RAM | 2 GB | 4 GB |
| CPU | 2 vCPU | 2+ vCPUs |
| Storage | 20 GB | 40+ GB NVMe |
| OS | Ubuntu 22.04+ | Ubuntu 24.04 LTS |
Top 5 VPS Providers for Flowise Compared
We deployed Flowise on each provider and measured startup time, response latency, and resource usage. Here are the results:
| Provider | RAM | CPU | Storage | Price | Rating | Action |
|---|---|---|---|---|---|---|
| Hetzner Top Pick | 4 GB | 2 vCPU | 40 GB NVMe | $4.15 | Visit Hetzner → | |
| Hostinger | 4 GB | 2 vCPU | 50 GB NVMe | $3.99 | Visit Hostinger → | |
| DigitalOcean | 4 GB | 2 vCPU | 50 GB NVMe | $12.00 | Visit DigitalOcean → | |
| Vultr | 4 GB | 2 vCPU | 55 GB NVMe | $12.00 | Visit Vultr → | |
| Railway | Flex | Flex | Flex | $5.00+ | Visit Railway → |
Architecture Overview
A typical Flowise deployment on a VPS uses Docker for easy management and Nginx as a reverse proxy:
Flowise Deployment Architecture
How to Set Up Flowise on a VPS
Step 1: Provision your VPS
Choose your VPS provider (we recommend Hetzner for the best value), select an Ubuntu 24.04 LTS image, and configure your SSH keys. Most providers have this ready in under 2 minutes.
Step 2: Install Flowise with Docker or npm
SSH into your server, install Docker and Docker Compose, and pull the Flowise container image. Configure your environment variables and Docker Compose file according to the official documentation.
Step 3: Configure chatflows and API access
Set up Nginx as a reverse proxy with SSL certificates from Let's Encrypt. Point your domain to the server IP, and your Flowise instance will be accessible via HTTPS.
Frequently Asked Questions
What is Flowise used for?
Flowise is used to build AI chatbots, RAG pipelines, and LLM-powered applications with a visual drag-and-drop interface.
How much RAM does Flowise need?
Flowise itself needs 2 GB minimum. With connected services and vector databases, 4 GB is recommended.
Can I embed Flowise chatbots on my website?
Yes. Flowise provides embed widgets and API endpoints to integrate chatbots into any website.
Is Flowise free to self-host?
Yes. Flowise is MIT-licensed open source software. Self-hosting is completely free.
How does Flowise compare to Dify?
Flowise focuses on LLM chain building with a visual editor. Dify offers a broader platform with more enterprise features.