Kodnik
WINDOWS • LOCAL AI CODING AGENT

Create, edit and fix programs with a local AI agent.

Kodnik works directly on your project files, runs commands and carries a task from your instruction to a finished change. It runs on Windows — locally, on your computer.

Not sure how Kodnik will run on your computer? Download the DEMO and test local models and project work before purchasing.

What Kodnik does

Describe the task — Kodnik carries it out on your files.

Kodnik runs local AI models and gives them tools to work with your project. From the app, you can create new files, edit existing ones, analyze code and fix errors.

Create a simple notes app that saves entries.
Change the appearance of the Save button.
Find and fix the error that prevents the program from starting.
Explain what this file does and where to start.
Add a new feature to my application.
Switch to ONLINE, open the library documentation and use it in the project.
  • Creates programs: describe what you want to build, and Kodnik works on the project files on your computer.
  • Edits existing projects: Kodnik analyzes files and applies concrete code changes step by step.
  • Fixes errors: analyzes the cause of the problem and prepares a fix in the project files.
  • Chats and analyzes: explains code, answers questions and helps plan the next steps.
  • Internet tools: in ONLINE mode, it searches the web, opens and reads pages and documentation, and downloads files needed during the task.

Start with a short instruction, and Kodnik takes the task from an idea to a working change in your files.

How Kodnik works

From instruction to real file changes.

Kodnik recognizes whether the task is to create a program, edit an existing project or fix an error. It shows a work plan, applies file changes and lets you return to the previous state with one click.

It carries the task from start to finish.

From a short instruction, through a work plan, to a concrete change in your files. You see every step and can immediately request further changes.


Work on a project folder, control changes, undo edits and receive updates — all locally, on your computer.

  • Work plan: Kodnik shows what it will do before changing files.
  • File operations: reads, edits and organizes project files on your computer.
  • Creation and editing: request a new program or changes to an existing project.
  • Fixes errors: analyzes the cause of an error and prepares a fix.
  • Undo changes: before editing, it saves a restore point so you can easily reverse an unwanted change.

File protection and undo

Before Kodnik edits or fixes a file, it saves a restore point. After the work is complete, you see a change notice below the code and can use Undo change to restore the file to its state before the edit.

Shared terminal

The same terminal for you and the AI agent.

You and the AI agent use the same project terminal session. You can enter commands manually, and Kodnik can continue working in that same PowerShell, CMD or Git Bash session — running commands, reading results and reacting to errors.

Kodnik terminal with PowerShell, CMD and Git Bash tabs
One shared session You and the agent work in the same project terminal — without a separate hidden terminal for the AI.
Full command visibility You see the agent's commands, command output and error messages in PowerShell, CMD or Git Bash.
Shared work on command output You can enter your own command and Kodnik can use its output in the next step — or run a command itself and then fix the code.
Model settings

Context, Thinking and Fast mode.

The most important local-model settings are available from Kodnik's bottom bar.

Selecting small, large or automatic context in Kodnik

Small, large or Auto context

Small context keeps work lighter, large context gives the model more room for files and conversation, and Auto manages the setting automatically. The bottle shows how much of the selected context is currently in use — it fills as usage grows, while the percentage below shows the current level.

Selecting Thinking or Fast mode in Kodnik

Thinking or Fast mode

Use Thinking for a more demanding task, or Fast mode when you want a shorter model response.

Under the hood

Kodnik configures itself for your hardware.

On first launch, Kodnik detects available resources, selects the compute backend and distributes model work between the GPU, system RAM and CPU. You do not need to configure runtime parameters manually.

Detects your hardware

Detects a supported GPU, available VRAM, driver version, CPU core count and system RAM before starting the model.

Selects the compute backend

Automatically selects the appropriate GPU acceleration backend — CUDA or Vulkan — or CPU mode when a supported GPU is not available.

Calculates model placement

Calculates how many model layers can be placed in GPU memory and how many should remain in RAM, using available resources without overfilling memory.

Works with different GPU brands

Kodnik can work with GPUs from different manufacturers and can also run on CPU only when needed.

Checks RAM and VRAM

Reads available system memory and GPU memory to configure runtime settings without manual parameter entry.

Safe fallback configuration

If every hardware parameter cannot be detected, Kodnik uses conservative startup settings instead of relying on incomplete data.

AI models

Model library in Kodnik.

Kodnik provides a library of local AI models. You choose models directly in the app from the AI Models panel. The library will be expanded with future Kodnik updates.

Kodnik AI Models panel with the available model library
Qwen 3.5

9B

Q6_K_L  ·  Q5_K_M  ·  Q4_K_M

Qwen 3.6

27B

Q3_K_L

Qwen 3.8

27B

Q2_K

In the AI models panel, you can use AUTO, ONE MODEL and TEAM.

OFFLINE / ONLINE

Work offline. Turn on ONLINE mode when you need it.

Kodnik is a Windows desktop application. In OFFLINE mode, model and project-file work stays local. ONLINE mode enables internet tools; a connection is also needed to download application updates.

OFFLINE

Local work

Work with project files without a cloud account and without a permanent internet connection.

ONLINE

Internet tools

After switching to ONLINE, Kodnik can search the web, open and read pages and documentation, and download files needed while working on the project.

Privacy

Your code stays with you.

Kodnik does not require a cloud account. In OFFLINE mode, the model runs on your computer and the project is not sent to an external AI model. You deliberately enable ONLINE mode when you want to use internet tools.

Work on your computer

Install Kodnik on your PC and work locally.

Open a project folder, enter an instruction and see changes in files on your computer — from the idea and file analysis to concrete project changes.

Requirements and data

Requirements for the current version of Kodnik.

Memory requirements depend on the selected local model. Kodnik can run on CPU only or use a compatible GPU and automatically choose how many model layers to offload to VRAM.

Component Requirement Information
System Windows 10 / 11 64-bit Kodnik is a desktop application installed on a Windows computer.
CPU x86-64 with AVX2 support Required to run local models in the current version.
RAM Depends on the selected model Different models use different amounts of memory. If you are not sure which option is suitable for your computer, you can test Kodnik with the DEMO.
Graphics card Optional Kodnik can run without a dedicated graphics card, but a compatible GPU can significantly speed up local model responses.
VRAM Kodnik uses available GPU memory Kodnik can place part of a model in VRAM and run computations on the GPU. This reduces CPU and system-RAM load and speeds up model responses.
Disk Depends on selected models Kodnik downloads the selected model files locally. Required free space depends on the number and size of the models you choose to download.
Internet Needed for setup and updates Required for initial setup, model downloads, updates and ONLINE mode.

Kodnik configures CPU, RAM and VRAM use for the running model. Not sure how it will perform on your computer? Download the DEMO and test it before purchasing.

Demo version

Test Kodnik on your own computer before purchasing.

The DEMO lets you run Kodnik on your own hardware, download a selected local model and test real-world performance, normal chat, project and code work, the terminal and ONLINE mode.

Kodnik DEMO — 2 hours of runtime

Time is counted only while Kodnik DEMO is running. When the app is closed, the timer stops and continues on the next launch. The Thinking feature is available in the full version of Kodnik.

local AI models project work terminal ONLINE no purchase required
Download Kodnik DEMO Windows 10 / 11 64-bit
2 hours of total runtime
Full version

Buy Kodnik and work without a time limit.

Kodnik

You receive the full Windows application and frequent updates at no extra cost. From the AI Models panel, you choose which models you want to download and use locally.

  • Windows desktop application
  • creating, editing and fixing code in projects
  • shared project terminal: PowerShell, CMD and Git Bash
  • context selection and Thinking / Fast mode
  • AI Models panel: AUTO, one model or your own team
  • local AI models downloaded and connected from within the app
  • internet tools available in ONLINE mode
  • Frequent updates
  • no subscription
  • no cloud account

One-time payment: USD $5.99

Go to secure checkout

How does purchasing work?

Checkout is handled securely by Paddle. The price is USD $5.99 as a one-time payment — there is no subscription.


After a successful payment, Kodnik automatically sends a private download link to the email used at checkout. The link is valid for 72 hours and allows up to 5 download attempts.


Already purchased? Get a fresh private download link. Questions about Kodnik: kontakt@kodnik.pl.

FAQ

Questions before purchasing.

What exactly does Kodnik do with my project?

Open a project folder and enter an instruction. Kodnik reads your files, shows a plan and then applies code changes — it can create new files, edit existing ones and fix errors. It saves a restore point before each change.

Do I need an internet connection?

Internet is needed for initial setup and model downloads, and later for updates and ONLINE mode. Working with a local model in OFFLINE mode does not require a permanent connection.

Does Kodnik send my project to an external AI model?

In OFFLINE mode, the model runs locally on your computer and the project is not sent to an external AI model. You deliberately enable ONLINE mode when you want to give Kodnik access to internet tools.

Does it work without a GPU?

Yes. A graphics card is not required. Kodnik can run on the CPU, while a compatible GPU can significantly speed up local model responses.

Am I buying the AI models together with Kodnik?

No. The purchase covers the Kodnik application. The models are independent projects distributed under their own licenses. Kodnik lets you choose supported models, downloads their files and prepares them for local use.

Is there a subscription?

No. You pay once — with no subscription and no cloud account. Frequent updates are included at no extra cost.

Will I receive updates?

Yes. Kodnik has a built-in updater and notifies you when a newer version is available. Updates are included at no extra cost.

How long does installation take?

Installing the application itself takes a few minutes. AI models are downloaded locally based on your selection, so download time and required disk space depend on the selected models and your connection speed.

I am not sure whether my computer can run Kodnik. What should I do?

Download the 2-hour DEMO. On your own computer, you can select a model, run it locally and test actual performance before purchasing the full version.

What are context and response mode used for?

Context controls how much information is available to the model during a task. You can choose small, large or Auto. Thinking mode is intended for more demanding tasks, while Fast mode produces shorter model responses.