Which requires less RAM: Dify or Open WebUI?

Open WebUI uses less memory (2 GB) compared to Dify (4 GB).

Which tool is more popular on GitHub: Dify or Open WebUI?

Open WebUI leads with 72,300 GitHub stars versus 0 for Dify.

Can I host both Dify and Open WebUI on the same VPS?

Yes! Combining both applications requires at least 6 GB of RAM plus operating system overhead. A 4GB to 8GB VPS easily accommodates both.

Head-to-Head Technical Benchmark

Dify vs Open WebUI

Technical hardware and popularity breakdown for self-hosting Dify and Open WebUI on cloud VPS servers.

Canonical Comparison URL: /compare/dify-vs-open-webui

Interactive Tool Matchup

Switch Matchup or Select New Apps

Change Candidate A or Candidate B to compare specs against any open-source tool in the directory.

Candidate A

Candidate B

Candidate A

Dify

langgenius/dify

★ 0

Production-grade LLM application development platform blending agentic workflows and RAG pipelines.

Min RAM

4 GB

CPU Cores

2 vCPU

Disk Storage

30 GB

Deploy Dify Docker Compose →

Candidate B

Open WebUI

open-webui/open-webui

★ 72.3k

Feature-rich, self-hosted web interface for Ollama, OpenAI-compatible APIs, and local LLMs.

Min RAM

2 GB

Lower RAM

CPU Cores

2 vCPU

Disk Storage

20 GB

Deploy Open WebUI Docker Compose →

Full Technical Benchmark Breakdown

Specification	Dify	Open WebUI	Advantage
Primary Category	ai-llms	ai-llms	—
Minimum RAM Required	4 GB	2 GB	Open WebUI (2 GB lighter)
GitHub Stars	★ 0	★ 72,300	Open WebUI (+72,300 stars)
GitHub Forks	0	8,900	Open WebUI
License	FOSS	MIT	Open-Source
Primary Language	N/A	Python	—
Docker Image	langgenius/dify-api:latest	ghcr.io/open-webui/open-webui:main	Both Container Ready

Multi-App Server Sizing

Can You Run Both Dify & Open WebUI Together?

Yes! Running both simultaneously requires approximately 9 GB RAM including host OS and Docker daemon buffers. A single standard $6-$10/mo cloud VPS easily hosts both without bottlenecks.

Open VPS RAM Calculator Deploy 9GB VPS ($6.99/mo) →