Local AI Apps and Tools for Windows

Lexicon is a writing assistant and rich-text editor for people who want to proofread and revise drafts on their own computer. Grammar checks work without an AI model, while optional local AI tools help rewrite longer passages and whole documents.

Ralphy runs coding task lists on your machine, coordinating an existing AI coding CLI for developers who want work to continue across multiple tasks. It defaults to Claude Code, whose standard cloud connection sends prompts and model outputs to a remote provider. Repository edits and task tracking happen locally.

iZotope Ozone is a proprietary audio mastering suite for musicians, producers, and audio engineers preparing finished mixes for distribution. It combines mastering modules in one place with an AI-powered Master Assistant that creates a preset tailored to your audio. You can adjust that starting point or build the mastering chain yourself.

ComfyUI is a visual AI workflow editor for creators who want control over generation and editing. Its node canvas lets you connect models and processing steps, inspect their settings and reuse the resulting workflows without writing code.

StyleGAN3 is NVIDIA's local AI image generation and training software for researchers and developers. Its architecture addresses generated detail that stays fixed to pixel positions instead of following the depicted objects as they move.

HyperWhisper is a desktop speech-to-text app for Windows and Linux that keeps recordings on your computer. It's for people captioning videos, transcribing interviews or podcasts, or turning recordings into searchable text. The interface brings transcription, editing and subtitle export into one place.

Hive coordinates AI agents for teams processing batches of leads, tickets, repositories or documents. A persistent lead agent, called a queen, develops a method on one item before assigning parallel workers, with human approval before the group starts.

Utsuwa is an AI companion for people who want a virtual character that remembers their conversations. It combines a 3D avatar with voice chat and optional relationship progression inspired by dating sims.

Optuna is a Python framework for machine learning developers and researchers who want to automate the search for model settings. Its search spaces can change with the choices made during a trial, so it can compare model architectures or classifiers as well as tune individual parameters. It's open source under the MIT license and can run on your own hardware as part of a Python workload.

NeuTTS is a collection of on-device text-to-speech models for developers building voice assistants and speech-enabled apps. It generates audio on your own hardware rather than sending speech generation to a cloud API.

Tinybot is a desktop AI agent for people who want an assistant to work with their files and project folders. Workspaces keep related conversations together, and execution records let you inspect what the agent did and what it produced.

Video2X processes video on your own hardware to increase resolution or add frames for smoother motion. It's for people improving existing footage, with several processing methods suited to anime and other video.

Atomic Chat is a local LLM app for people who want to chat with models on their own device or use them with coding assistants and AI agents. It began as a fork of Jan by Menlo Research.

SLEAP helps behavioral researchers measure animal movement in recorded video. It trains models to estimate poses for single animals or groups, with human review during dataset creation and prediction checking.

Codex CLI is a terminal coding assistant that works in your local repository on macOS, Windows and Linux. Developers can use it with models running locally through Ollama, including gpt-oss:120b, or connect to OpenAI through a paid ChatGPT account or API key. With OpenAI access, model requests go to the remote service even though file edits and commands run on your computer.

local-transcriber is a free, open-source app for turning audio and video recordings into text on your own computer. It's aimed at people handling private interviews, client calls or long talks who want transcription without uploading recordings to a cloud service. It runs fully offline once the required models are downloaded.

Waifu2x-Extension-GUI is a Windows desktop app for enlarging artwork, photos and video with AI. It combines multiple processing engines in one interface for people working with both drawn and photographic media.

Swarm Fleet manages multiple terminal AI agents on your machine for developers coordinating coding, review and ticket work. Each agent has its own terminal, with shared controls for supervising their work.

OpenVINO AI Plugins for GIMP adds image generation and AI editing to GIMP 3 for people who want to work within their existing image editor. Models run on Intel devices through OpenVINO.

Stable Fast 3D generates a textured 3D asset from a single object image. Built on TripoSR, it's aimed at game and VR developers, designers and people making product models for e-commerce.

LocalWriter adds AI writing assistance inside LibreOffice Writer for people who want to draft and revise text within their documents. It works with selected passages and requires a separate language model runner.

Chatless is a desktop AI chat client for people who want local models and cloud services in one app. It keeps conversation history on your computer and lets you ask questions about your own documents.

Tandem Browser is a desktop browser for people who want AI agents to carry out web tasks alongside them. You and the agent work in the same logged-in session, so you can watch its actions and step in when needed.

BrainSoup is a desktop AI agent app for people who want to automate tasks with assistants that have distinct roles and access to their own documents. You direct the agents through conversation and can have them work together on a shared task.

MetaGPT is a Python AI agent framework for developers who want to generate software projects using local models through Ollama or remote model APIs. The framework runs on your machine and writes a project repository locally. Its example configuration uses OpenAI, which sends model requests to that provider and requires API credentials.

Semantic Kernel is an SDK for developers building AI agents and coordinated workflows inside applications. It lets developers choose local model backends or cloud providers for those applications.

Torch-TensorRT compiles PyTorch models with TensorRT to reduce inference latency on NVIDIA hardware. It's for developers running models on their own machines or servers who want faster execution while keeping their PyTorch workflow. The project is open source under the BSD 3-Clause license.

Voibe is a paid AI dictation and meeting notes app for people handling confidential work, including legal, healthcare and finance professionals. It types spoken text into other apps and captures meetings on a Mac without a bot joining the call. Dictation works on Mac and Windows; meeting capture is Mac-only.

dstack is a self-hosted AI compute orchestration tool for teams running development, training and inference across cloud providers and their own servers. It gives those workloads a shared interface across Kubernetes, VMs and bare-metal clusters.

webctl gives developers and AI agents command-line control of a browser for website tasks. It uses Chromium through Playwright and connects with coding assistants through skills and prompts.

Jan is a desktop AI chat app for people who want to run models on their own computer while retaining the option to use cloud providers. Local model use works offline; choosing a hosted model sends requests to that provider.

NullClaw runs AI agents on your own hardware or server for coding work and automated background tasks. It's aimed at developers who want an assistant that can carry out multi-step jobs with controls over its access and actions.

Fabric organizes reusable AI prompts by task for people who want repeatable ways to analyze content, write, or work with code. Its community-contributed prompts, called Patterns, provide a starting point without requiring you to write each prompt yourself.

Dr Doc Search is a self-hosted Python application for asking questions about PDF books and documents. It's for readers who want answers drawn from a particular text and a choice between OpenAI and HuggingFace models. The code is open source under the MIT license.