What it does
Core capabilities at a glance
- LM Studio
- Lmstudio
- Nodejs
Deep dive
The full breakdown - performance, comparisons, and setup
lmstudio-js
lmstudio-js is a local-AI tool - LM Studio TypeScript SDK.
Overview
'lmstudio-js' is LM Studio's official JavaScript client SDK, written in TypeScript. It allows you to
- Use LLMs to respond in chats or predict text completions - Define functions as tools, and turn LLMs into autonomous agents that run completely locally - Load, configure, and unload models from memory - Supports both browser and any Node-compatible environments - Generate embeddings for text, and more!
Open AI's SDK is designed to use with Open AI's proprietary models. As such, it is missing many features that are essential for using LLMs in a local environment, such as:
- Managing loading and unloading models from memory - Configuring load parameters (context length, gpu offload settings, etc.) - Speculative decoding - Getting information (such as context length, model size, etc.) about a model - ... and more
In addition, while 'openai' sdk is automatically generated, 'lmstudio-js' is designed from ground-up to be clean and easy to use for TypeScript/JavaScript developers.
Discuss all things lmstudio-js in #dev-chat in LM Studio's Community Discord server.
lmstudio-js is open-source, written primarily in TypeScript, with 1,674 GitHub stars under the MIT license. It was last updated on 2026-06-08.
Key capabilities
From the project's documentation:
- Supports both browser and any Node-compatible environments
- Generate embeddings for text, and more!
- Managing loading and unloading models from memory
- Configuring load parameters (context length, gpu offload settings, etc.)
- Getting information (such as context length, model size, etc.) about a model
How it fits a local-AI stack
lmstudio-js runs on your own hardware, so pair it with a model and a GPU sized to your needs. Use the VRAM calculator to pick a model that fits your card, and see what you can run for hardware guidance. Related local-AI tools in the directory:
Sources
- Source code & docs: lmstudio-ai/lmstudio-js
- Official website: https://www.npmjs.com/package/@lmstudio/sdk
Stats from GitHub, 2026-06-08.
Frequently asked
Quick answers to common questions
What is lmstudio-js?
lmstudio-js is a other tool for local AI workloads. LM Studio TypeScript SDK
Is lmstudio-js free and open source?
Yes, lmstudio-js has 1,674 GitHub stars and is licensed under MIT. You can self-host it for free on web.
What platforms does lmstudio-js support?
lmstudio-js runs on web.
What hardware do I need for lmstudio-js?
The hardware requirements depend on which models you run. Check our hardware directory for compatible GPUs and systems. lmstudio-js has 1,674 GitHub stars and an active community.
Does lmstudio-js support GPU acceleration?
lmstudio-js's GPU support depends on your specific setup. Check the documentation for details. For the best performance, pair it with an NVIDIA RTX 4090 or 5090.
What are the best alternatives to lmstudio-js?
Popular alternatives include other other tools in our directory. Browse our full collection at /tool for comparisons, community reviews, and benchmark data to find the right fit for your workflow.
How much does lmstudio-js cost?
lmstudio-js is free-open-source. It is completely free and open source to self-host.
Pairs well with
Complementary tools, models, and hardware
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