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KiTTY VS Nuclr.dev

Compare KiTTY VS Nuclr.dev and see what are their differences

KiTTY

KiTTY is a fork from version 0.70 of PuTTY. It adds extra features to PuTTY.

Rating
0 reviews
Alternatives Is it good?
Nuclr.dev

AI coding without living in the terminal. Run Claude Code, Codex, Pi and OpenCode side by side, with your files, servers and clouds in the same window - on macOS, Linux and Windows.

Rating
0 reviews
Pricing
Free
Alternatives Is it good?
Mind Diary
MindDiary therapy practice management software: digital intake, lead capture, client check-ins, therapist-reviewed AI notes, telehealth, and revenue follow-up. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

SSH popularity
100% vs 0%
alternatives listed
193 vs 11

Base details

Website, pricing, platforms and company facts side by side.

KiTTY
Nuclr.dev
Website 9bis.net nuclr.dev
Pricing —
Free
Platforms —
MacOS Windows Linux
Company — Startup from Australia · 1 - 9 employees · 2026
Listed in
SSH Server Management Terminal Tools Server Configuration And Automation +1
AI Coding Assistant AI Tools Developer Tools File Manager Terminal SSH Clients AI +4

About KiTTY and Nuclr.dev

In their own words, as submitted to SaaSHub.

KiTTY
Nuclr.dev

No description of KiTTY yet.

Nuclr Commander puts your AI coding agents, files, servers and clouds in one keyboard-first window. Every agent in one window - Run Claude Code, Codex, Pi and OpenCode side by side instead of a sea of terminals - Use your Claude or ChatGPT plan, or a local model through LM Studio - Review each...

Read more about Nuclr.dev

Features and specs

What each product offers, as listed by its team.

KiTTY 5 features
Nuclr.dev 14 features
  • Enhanced Features
    KiTTY offers more features than PuTTY, including additional options such as automatic password saving, session filtering, and session launcher, enhancing user experience and productivity.
  • Portability
    The tool is available in a portable version, which does not require installation. This makes it convenient for use on different machines without needing administrator permissions.
  • Customization
    KiTTY supports a variety of customization options, such as configurable shortcuts, transparency options, and built-in chat functionalities, allowing users to tailor the terminal emulator to their specific needs.
  • Integration with Windows
    KiTTY integrates well with Windows, offering features like the ability to create desktop shortcuts for sessions and support for Windows jump lists.
  • Scripting Capabilities
    KiTTY allows the automation of tasks through its scripting capabilities, making it easier for users to perform repetitive tasks efficiently.

Possible disadvantages

  • Windows-Only
    KiTTY is designed primarily for Windows, which limits its usability for users on other operating systems such as macOS or Linux.
  • Steeper Learning Curve
    The additional features and options may result in a steeper learning curve for new users who are accustomed to simpler tools.
  • Stability Issues
    Some users may encounter stability issues or bugs, which could affect reliability during critical tasks.
  • Less Frequent Updates
    Compared to some other terminal emulators, KiTTY does not receive updates as frequently, which may lead to slower implementation of new features or security fixes.
  • Security Concerns
    Automatically saving passwords can introduce security risks if the local machine is compromised, as stored credentials could become accessible to unauthorized users.
  • AI coding assistant
    Claude Code, Codex, Pi and OpenCode side by side in one window
  • LLM integration
    Your Claude or ChatGPT plan, or a local model through LM Studio
  • Change Review
    Each turn's changes in a diff viewer, with editor and git history
  • Agent Teams
    Agents message each other: one writes code, another reviews it
  • Phone Remote & QR Codes
    Watch, prompt, approve or stop agents from your phone, end-to-end encrypted
  • Credentials management
    Agents use your SSH, SQL and S3 connections without seeing the keys
  • Approvals
    Agent actions can wait for your OK, with the full command shown
  • Dual Panel Interface
    Keyboard-first, in the tradition of Norton and Total Commander
  • Remote and cloud-friendly options
    SSH/SFTP, Amazon S3, Google Cloud, GitHub, Git, Docker, SQL databases
  • Built-in Terminal
    A full terminal inside the window
  • Quick View
    Preview images, documents, 3D models, music and archives
  • Plugins
    Extend Commander with plugins
  • Platforms
    macOS, Linux and Windows
  • Price
    Free to download, no account needed

Analysis

An editorial look at what each product does well and who it suits.

KiTTY
Nuclr.dev

Overall verdict

  • Overall, KiTTY is considered a good choice for users who are already comfortable with PuTTY but need extra features, better customization, and enhanced security. Its popularity in the tech community stems from its reliability, wide range of features, and the fact that it builds on a well-established tool.

Why this product is good

  • KiTTY is a free and open-source terminal emulator that's based on PuTTY. It offers additional features such as session filtering, automatic logon scripts, a portable version, and support for various encryptions. These enhancements make it particularly valuable for users who require more robust functionality than what is available in the basic PuTTY client.

Recommended for

    KiTTY is recommended for developers, network administrators, and IT professionals who regularly use SSH and telnet protocols, especially those who require advanced features and automation in managing their connections. It is also a good option for anyone looking for a portable, customizable terminal emulator.

No analysis of Nuclr.dev yet.

Videos

Walkthroughs and reviews on video.

KiTTY 4 videos + Add
Nuclr.dev 6 videos + Add

Kitty In My Pocket Series 4 Hidden Kitties Blind Bag Toy Review | PSToyReviews

More videos

  • - Kitty Paw Review - with Tom Vasel
  • - Sparkle * Kitty Review - with Tom Vasel
  • - KiTTY -SSH Client for Windows

https://www.youtube.com/watch?v=lfxy_5cmLs4

More videos

  • - Play a Game While Your AI Agent Works | Loader FX
  • - Claude vs Codex vs Pi vs a Local LLM: Who's Bluffing? | The Chameleon
  • - Let Claude Code Fix Your Servers Without Giving It Your SSH Keys
  • - Your AI Agents, in Your Pocket | Nuclr Commander
  • - Nuclr Commander: Claude Code, Codex, Pi & Your Terminal in One Workspace

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
KiTTY
Nuclr.dev
100% 100%
SSH
0% 0%
0% 0%
AI Tools
100% 100%
100% 100%
Server Management
0% 0%
0% 0%
File Manager
100% 100%

Questions & Answers

As answered by people managing KiTTY and Nuclr.dev.

What makes your product unique?

Nuclr.dev's answer:

Most AI coding tools give you either a terminal or an editor.

Nuclr Commander gives you the whole workbench: Claude Code, Codex, Pi and OpenCode run side by side in one window, next to a full keyboard-first file manager with panels for your SSH servers, S3, Google Cloud, Docker, Git and SQL databases.

Your keys stay yours. Agents reach those servers and databases through Commander, so the passwords and keys behind them are never shown to the agent, and actions can wait for your approval with the full command shown first.

Agents work as a team. They can message each other, so one writes the code and another reviews it, and you can watch, prompt or stop them from your phone.

Free to download, no account needed, on macOS, Linux and Windows.

Which are the primary technologies used for building your product?

Nuclr.dev's answer:

Nuclr Commander is a native desktop app for macOS, Linux and Windows, with a plugin architecture at its core: file systems, remote servers, cloud storage, viewers and AI agents are all plugins that load into the same panels. Plugins are cryptographically signed and verified before they load. The AI side works with Claude Code, Codex, Pi and OpenCode, and connects agents to your servers and databases through the Model Context Protocol (MCP).

Why should a person choose your product over its competitors?

Nuclr.dev's answer:

If you use AI coding agents: instead of one agent per terminal tab, or one vendor's app, you get Claude Code, Codex, Pi and OpenCode side by side, with your own Claude or ChatGPT plan or a local model. Each turn's changes open in a diff viewer, and agents can hand work to each other - one writes, another reviews.

If you use a dual-pane file manager: you keep the keyboard-first, two-pane way of working from Norton, Total Commander and FAR, on macOS, Linux and Windows alike - plus panels for SSH/SFTP, S3, Google Cloud, Docker, Git and SQL databases, a built-in terminal and quick view for almost any file.

If you do both: this is the only place they live together. Your agents can work with the same servers and databases you browse, through Commander, without ever being shown the passwords and keys behind them - and anything they do can wait for your approval.

Free to download, no account needed.

How would you describe the primary audience of your product?

Nuclr.dev's answer:

Developers who work with AI coding agents every day and want them out of scattered terminal tabs - especially people running more than one agent, or more than one vendor's agent, on the same project.

It suits full-stack and backend developers, DevOps engineers and sysadmins in particular: people whose work spans code, files, SSH servers, cloud storage, containers and databases, and who want their agents to reach all of that without handing over their keys.

It also has a second home with keyboard-first file manager fans - longtime users of Norton Commander, Total Commander, FAR or Midnight Commander - who want that way of working on macOS, Linux and Windows alike.

What's the story behind your product?

Nuclr.dev's answer:

Nuclr Commander is built by one developer. It started in February 2026 as a modern take on the dual-pane file managers I grew up with - Norton Commander, then FAR and Total Commander - because I wanted a file commander I could extend easily, built for how developers work in 2026 rather than in the 1990s. So from the first version, almost everything is a plugin: archives, SSH servers, S3, Docker, Git, databases and viewers all plug into the same panels.

Version 1.0 shipped in July 2026. By then most of my own work happened alongside AI coding agents, and I was juggling them in a pile of terminal tabs while switching to other apps for files, servers and databases. With a commander that was easy to extend, the agents could simply move in: Claude Code, Codex, Pi and OpenCode side by side, working with the same files, servers and clouds, without ever being shown my keys.

It's still the same idea it started with: one keyboard-first window for everything a developer touches - and easy to extend for whatever comes next.

Who are some of the biggest customers of your product?

Nuclr.dev's answer:

Nuclr Commander is used by developers from all walks of life - from backend and full-stack engineers to DevOps, sysadmins and longtime fans of Norton and Total Commander. As more development happens alongside AI coding agents, it's drawing more and more developers who want their agents, files and servers in one window.

It's free to download and doesn't require an account.

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

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Nuclr.dev no reviews yet

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