AltCatalog
Catalog Local LLM runners LM Studio

Alternatives to LM Studio

Desktop app for local LLMs with a friendly UI

Alt Score

Alt Score · 85

How this alternative ranks. How it works →

Verified coverage 90%83
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

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#3 of 7 in Local LLM runners

LM Studio ranks #3 of 7 in Local LLM runners, with an Alt Score of 85. It is licensed under Proprietary (closed source); lms CLI and TypeScript SDK are MIT, free from Free and available on Windows, macOS and Linux. 11 of 12 checklist rows are verified against a public source.

Most compared with LocalAIJanllama.cpp
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Who it's for

Developers and technically curious users who want to run LLMs on their own hardware instead of calling a cloud API, for privacy, offline use, or cost reasons.

What you get

A desktop app with a model library for discovering and downloading open-weight LLMs (GGUF and Apple MLX formats), a built-in chat UI for interacting with them, and a local inference server that exposes an OpenAI-compatible API. Runs on Windows, Mac, and Linux, with all inference happening on-device.

How it works

You download a model through LM Studio's built-in catalog, then either chat with it directly in the app or start the local server so other apps and scripts can call it over HTTP using the OpenAI API format.

Why people leave LM Studio

Dashed reasons are sourced facts; the rest are opinions. Vendors can dispute.

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Ranked alternatives

Ordered by Alt Score. Click any score to see the breakdown.

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01

Self-hosted OpenAI-compatible API for local models.

MIT LinuxmacOS
Alt Score

Alt Score · 96

How this alternative ranks. How it works →

Verified coverage 90%96
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Not a real alternative? Flag it
02
Jan

Open source local-first ChatGPT alternative.

Apache-2.0 WindowsmacOSLinux
Alt Score

Alt Score · 93

How this alternative ranks. How it works →

Verified coverage 90%92
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Not a real alternative? Flag it
03

The reference C++ inference engine for GGUF models.

MIT WindowsmacOSLinux
Alt Score

Alt Score · 81

How this alternative ranks. How it works →

Verified coverage 90%79
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Not a real alternative? Flag it
04

Run open-weight models locally with one command.

MIT macOSWindowsLinux
Alt Score

Alt Score · 78

How this alternative ranks. How it works →

Verified coverage 90%75
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Not a real alternative? Flag it
05

Local chatbot runner from Nomic.

MIT WindowsmacOSLinux
Alt Score

Alt Score · 70

How this alternative ranks. How it works →

Verified coverage 90%67
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Not a real alternative? Flag it
06

Self-hosted chat UI for local and API models.

Open WebUI License (BSD-3-Clause-based with branding restriction) LinuxWindowsmacOSWeb
Alt Score

Alt Score · 66

How this alternative ranks. How it works →

Verified coverage 90%62
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Not a real alternative? Flag it

Feature comparison

Rows come from the Local LLM runners checklist (16 rows). Human-verified cells only. ? means the value has not been verified.

Comparing LM Studio LocalAI × Jan × llama.cpp × Ollama × GPT4All ×
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Open WebUI
Local LLM runners checklist LM StudioLocalAIJanllama.cppOllamaGPT4All
Pricing model
Starts at
License
Platforms
GGUF model support
GPU acceleration
OpenAI-compatible API server
Built-in model library
Chat UI included
CLI
Multi-modal (vision) support
Quantization options
Runs fully offline
Open source
Model fine-tuning
Hardware requirements shown
verified pending unknown (?) Click any cell to view its source or propose a value
Sources & verification 16

Every fact and feature listed for LM Studio is verified against its own pages. Each alternative is sourced on its own page.

FAQ

Yes. LocalAI, Jan and llama.cpp have a free tier or are fully free. Free-tier limits in the comparison table are verified and dated.

LocalAI, Jan and llama.cpp — every license claim links its source.