What are the minimum VPS requirements for Open WebUI?

Open WebUI minimum requirements in the RunOnVPS dataset are RAM 2 GB, CPU 1 vCPU, disk 10 GB. Values marked Estimated were not published as complete hardware requirements by the checked source.

What VPS tier does RunOnVPS suggest for Open WebUI?

RunOnVPS suggests the 4 GB RAM tier as a starting point. This is our own sizing suggestion derived from the recommended RAM (4 GB), not an official provider recommendation.

Does Open WebUI support Docker?

The checked dataset records Docker support for Open WebUI as: Yes.

Does Open WebUI need a GPU?

Open WebUI GPU requirement: Optional. See the source notes on this page for workload-specific exceptions.

Automation / AI / Dev

Open WebUI on VPS

Self-hosted AI platform and chat interface for Ollama and OpenAI-compatible APIs with built-in RAG

See requirements View on GitHub

GitHub stars: ~157k (2026-10-24)
License: Open WebUI License (BSD-3-based with branding clause)
Docker: Yes
GPU: Optional

Requirements

Minimum and recommended VPS specs

Badges are attached to each value. An estimate is never presented as an official project requirement.

Open WebUI hardware requirements
Resource	Minimum	Recommended
RAM	2 GB Estimated	4 GB Estimated
CPU	1 vCPU Estimated	2 vCPU Estimated
Disk	10 GB Estimated	Not stated Not stated

Disk figures describe the application footprint recorded in the dataset. Personal media, documents, backups and other user data can require substantially more storage.

RunOnVPS sizing suggestion

Suggested VPS tier

4 GB RAM tier

This is our sizing suggestion, derived from Open WebUI’s recommended RAM of 4 GB. It is not an official requirement and it does not guarantee that every workload, plug-in set or media library will fit comfortably.

Affiliate link placeholder — no provider selected

This placeholder intentionally has no URL or affiliate ID in the Day 2 build.

Deployment

Docker & GPU

Docker support: Yes

GPU: Optional

Check the source notes below before assuming a GPU, transcoding workload or machine-learning feature is included in the baseline deployment.

Commercial alternative

What it can replace

ChatGPT

Open WebUI is catalogued here as a self-hosted alternative to ChatGPT. Feature parity varies, so compare your required workflow before migrating.

Add it to a multi-app VPS estimate →

Source check

Important notes

官方未标明最低硬件配置: official Quick Start docs state the :slim image idles at about 300 MiB RAM and explicitly say that figure is not a minimum requirement; estimates are based on the default Docker (:main) deployment (main image download 1.62 GB per official docs). GPU optional: only relevant for bundled Ollama/CUDA images or local embedding/speech; the UI itself works against external APIs. License: v0.6.6+ uses the Open WebUI License (branding may not be removed for deployments over 50 users per 30 days unless contributor permission or Enterprise license; code up to v0.6.5 remains BSD-3). GitHub stars 156587 on 2026-10-24.

Data source: https://docs.openwebui.com/

Project repository: https://github.com/open-webui/open-webui

Keep comparing