Which requires less RAM: Kavita or Open WebUI?

Kavita uses less memory (1 GB) compared to Open WebUI (2 GB).

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

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

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

Yes! Combining both applications requires at least 3 GB of RAM plus operating system overhead. A 4GB to 8GB VPS easily accommodates both.

Head-to-Head Technical Benchmark

Kavita vs Open WebUI

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

Canonical Comparison URL: /compare/kavita-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

Kavita

Kareadita/Kavita

★ 0

Fast, feature-rich digital library server for manga, comics, and ebooks with an OPDS reader.

Min RAM

1 GB

Lower RAM

CPU Cores

1 vCPU

Disk Storage

25 GB

Deploy Kavita 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

CPU Cores

2 vCPU

Disk Storage

20 GB

Deploy Open WebUI Docker Compose →

Full Technical Benchmark Breakdown

Specification	Kavita	Open WebUI	Advantage
Primary Category	media	ai-llms	—
Minimum RAM Required	1 GB	2 GB	Kavita (1 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	kareadita/kavita:latest	ghcr.io/open-webui/open-webui:main	Both Container Ready

Multi-App Server Sizing

Can You Run Both Kavita & Open WebUI Together?

Yes! Running both simultaneously requires approximately 5 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 5GB VPS ($6.99/mo) →