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JavaScript Machine Learning Libraries: TensorFlow.js, Transformers.js & More

Machine learning in JavaScript — neural network libraries, in-browser inference, NLP, numerical tools and LLM SDKs for the browser and Node.js.

29 topics•5 categories•Updated November 2026

Neural Network & ML Libraries

9 entries

Train models in the browser or Node.js.

01TensorFlow.jsMachine learning in JavaScript for the browser and Node.js; last GitHub update June 2026. 02Brain.jsGPU-accelerated neural networks in JavaScript; last GitHub update September 2024. 03SynapticArchitecture-free neural network library for Node.js and the browser; active again in August 2026. GitHub lists 1.1.4 as the latest release, from October 2017, so check its activity before relying on it. 04ml5.jsApproachable machine learning for artists, creative coders and students, built on TensorFlow.js; last GitHub update October 2024. 05ConvNetJSAndrej Karpathy's library for training deep learning models in the browser; its GitHub repository was last updated in January 2023, so treat it as a teaching reference. 06MindFlexible neural networks in JavaScript; last GitHub update July 2026. 07Neuro.jsMachine learning framework for chatbots and assistants with multi-label classification and online learning. 08LimduMachine-learning framework for Node.js with multi-label and online classification; last GitHub update April 2026. GitHub lists v1.0.0 as the latest release, from June 2023, so check its activity before relying on it. 09ml.jsCollection of machine learning libraries for JavaScript.

In-browser & Edge Inference

5 entries

Run pretrained models on-device.

10Transformers.jsRun Hugging Face transformer models in the browser or Node.js. 11ONNX Runtime WebRun ONNX models in the browser with WebAssembly and WebGPU. 12WebLLMRun large language models in the browser with WebGPU. 13MediaPipe SolutionsReady-made on-device machine learning tasks for web, mobile and desktop. 14WebDNNExecute pretrained deep neural networks in the browser; last GitHub update October 2026.

NLP & Numerical Libraries

3 entries

Text processing and scientific computing.

15compromiseInterprets and pre-parses natural language text; the old compromise.cool address redirects here. 16naturalGeneral natural language facilities for Node.js. GitHub lists v8.2.6 as the latest release, from October 2026. 17stdlibStandard library for JavaScript and Node.js with an emphasis on numerical and scientific computing.

LLM Application SDKs

4 entries

Build with hosted and local language models.

18LangChain.jsFramework for LLM applications and agents in JavaScript and TypeScript. 19Vercel AI SDKTypeScript toolkit for AI applications and agents. 20OpenAI Node SDKOfficial OpenAI client library for JavaScript. GitHub lists v7.45.1 as the latest release, from October 2026. 21Anthropic TypeScript SDKOfficial Anthropic client library for TypeScript.

JavaScript ML Runtimes

1 entries

ML in the browser and Node.

22Transformers.jsRun transformers in the browser.

Related Pages

7 entries

Neighbouring pages on this site.

23JavaScript FrameworksJavaScript frameworks and runtimes. 24JavaScript IDEsJavaScript IDEs and editors. 25Machine Learning FrameworksML frameworks. 26Deep Learning FrameworksDeep learning frameworks. 27Python Libraries for LLM ApplicationsLLM libraries for Python. 28Machine LearningMachine learning hub. 29Artificial IntelligenceHub of AI platforms, models, frameworks, governance and learning resources.

Frequently Asked Questions

Can I run machine learning in JavaScript?

Yes. TensorFlow.js, Brain.js and ml5.js train and run models in the browser or Node.js, and Transformers.js, ONNX Runtime Web and WebLLM run pretrained transformer and language models on-device.

How do I run a language model in the browser?

WebLLM runs LLMs with WebGPU, Transformers.js runs Hugging Face models, and ONNX Runtime Web runs ONNX models with WebAssembly or WebGPU.

Which libraries are no longer actively developed?

ConvNetJS has not been updated on GitHub since January 2023; Brain.js and ml5.js have not been updated since late 2024. The notes give last GitHub update dates from October 2026.

Which additional references does this page add?

The section 'JavaScript ML Runtimes' lists TensorFlow.js, Transformers.js, ONNX Runtime Web, WebLLM.

How current is this page?

Links were checked in October 2026. Sites that block automated checks are kept and may need a manual click. Last-commit dates are from GitHub in October 2026 and show activity only; check each project's release notes before adopting it. The earlier version of this page linked to Synaptic and ConvNetJS as the first entries; Synaptic is now active again, and all links were rechecked.