Best Local & open-source LLMs tools: Run AI models privately on your own PC

Local & open-source LLMs

Ranked by an evidence score built from public, verifiable facts (pricing, free tier, docs, platforms, open source, update activity). Hands-on testing is coming. How we test.

Top 3

#1
Jan

Open-source desktop ChatGPT alternative that runs models offline.

Free tier Open source 100/100 · evidence
#2
llama.cpp

C/C++ LLM inference engine behind many local tools.

Free tier Open source 95/100 · evidence
#3
Ollama

Run open LLMs locally with one command.

Free tier Open source 85/100 · evidence
Budget pick
Open WebUI

Self-hosted ChatGPT-style UI for Ollama and APIs.

Free tier Open source 85/100 · evidence
Local / open-source pick
Jan

Open-source desktop ChatGPT alternative that runs models offline.

Free tier Open source 100/100 · evidence

Comparison

ToolPricingFree tierScore
JanFree, open sourceYes100
llama.cppFree, open sourceYes95
OllamaFree, open sourceYes85
Open WebUIFree, open sourceYes85
LM StudioFreeYes70

Head-to-head