Head to head · Coding · updated Oct 17, 2026
Open WebUI vs llama.cpp
Open WebUI scores 98 to llama.cpp's 97 on public evidence for run LLMs locally, and they rank #2 and #3 there. Both are free to start. Numbers below are the same public signals the ranking uses, recomputed nightly — nothing here is sponsored.
Open WebUI
Self-hosted ChatGPT-style web interface for Ollama and OpenAI-compatible backends.
+ Multi-user accounts, RAG, and tool plugins make it a full private ChatGPT replacement.
− Docker-only deployment and a licence change in 2025 that restricts branding removal.
llama.cpp
C/C++ inference engine for LLMs that runs quantized GGUF models on CPUs and GPUs.
+ The engine underneath Ollama, LM Studio, and most local tooling, with the widest hardware support.
− Building and tuning flags yourself is a chore compared with wrappers.
Side by side
public evidence| Open WebUI | llama.cpp | |
|---|---|---|
| Evidence score / 100 | 98 | 97 |
| GitHub stars | 155,940 | 131,447 |
| Hacker News stories, 30d | 2 | 28 |
| Release-feed mentions, 30d | 0 | 15 |
| Last activity | 0 days ago | 0 days ago |
| Pricing | Open source · Free self-hosted | Open source · Free |
| Platforms | web, linux, mac, windows | mac, windows, linux, cli, api |
| Maker | Open WebUI | ggml (Georgi Gerganov) |
Which one?
Pick Open WebUI if
- you want the stronger public evidence (98 vs 97)
- you need it on web
Best for teams hosting a shared private chat UI.
Pick llama.cpp if
- you need it on api, cli
Best for developers who want maximum control over local inference.