7 Little Desktop Pets and Browser Companions Worth Meeting

01 / 07 · A tiny explorer for webpages

Shimeji Browser Extension

Where it livesInside Chrome webpages; not across your whole desktop

PricingFree extension; characters and extras vary by provider

PlatformChromium browsers · Windows, Mac and ChromeOS

Visit the official project ↗

A tiny character climbing the edge of an article is a different kind of company from a little creature sleeping on the taskbar. Shimeji has the more theatrical personality. The official Chrome extension listing describes mascots that walk, crawl, jump, get picked up with the pointer and, if you let them, interact with webpage elements. It's closer to having a small visitor inside every site you open than adopting a pet with needs to manage.

It is useful to know what the word Shimeji means in this context. It's a whole tradition of tiny computer characters, not one official app across every platform. This particular listing belongs to Shimejis.xyz. If you go looking elsewhere you'll find other extensions and older Java desktop projects with different authors, permissions and behaviours. Don't assume they're interchangeable.

The catch is precisely the thing that makes it fun: it runs on webpages where the extension is allowed to run. It won't wander onto Finder or Windows Explorer. For people who spend most of the day in a browser, that's often enough. For someone who wants a pet perched on every app window, choose a proper desktop overlay instead.

02 / 07 · A friend among your widgets

Calphii Pixel Pet

Jelly

OG Jelly

Where it livesInside your Calphii browser workspace

Choose your friendJelly (default), OG Jelly or OG Froggy

What it doesWanders between visible widgets, responds to petting and offers occasional little thoughts

What it doesn't doFollow you onto other websites or your operating-system desktop

Meet Calphii's Pixel Pet ↗Try it in Calphii ↗

Pixel Pet is what happens when you give a browser workspace a tiny resident. Jelly floats across Calphii, OG Froggy hops, and OG Jelly brings back the original pixel look. None lives in a separate draggable widget; the pet moves around the ones you've actually got open, sometimes visiting the Media Player, Deep Focus or your task board.

Click or tap to pet it and you might get a few hearts and a quiet “hello again, friend”. It has little contextual observations, too: “good tune” near music, or “one card at a time” beside the board. If you prefer reduced motion, autonomous wandering and idle thoughts stop, while you can still interact directly.

There's a thoughtful little detail here that doesn't come across in a screenshot: when Calphii's Focus Mode is active, Pixel Pet waits longer between its wanderings. It can still move; the room simply gets a little quieter. This is different from switching on your device's reduced-motion setting, which pauses the autonomous roaming altogether. It's an example of a companion adapting to the room rather than making you work around it.

Calphii’s Pixel Pet feels right at home in a customisable browser room, with music and notes nearby. If you enjoy having a little companion among your workspace widgets, you can meet Jelly, OG Jelly and OG Froggy inside Calphii.

03 / 07 · For a laugh, absolutely not for tranquillity

Desktop Goose

Where it livesOver your desktop windows and apps

PricingFree to download; pay what you want to support its maker

PlatformWindows and macOS · separate releases

Visit the official project ↗

The goose has no interest in whether you have a deadline. It steals your cursor, leaves muddy footprints, summons notes and arrives with memes you didn't request. Somehow that has made it one of the internet's most memorable desktop companions. It feels less like adopting a pet and more like inviting one extremely self-assured bird into your office.

Developer samperson hosts the original on itch.io, with distinct Windows and Mac downloads. The price is pay-what-you-want, and a free download is explicitly available. The Windows release also has a configurable behaviour file and modding options; the Mac build has historically had different capabilities. If an unrelated site offers an 'official' new Goose installer, go back to the creator's page instead.

One final warning from this bird's personal publicist: Desktop Goose is intentionally disruptive. It can interfere with your pointer and bring other windows onto the screen. Wonderful for a silly afternoon; less wonderful during a presentation or when you're trying to finish a report.

04 / 07 · A tiny taskbar drummer with a hat obsession

Bongo Cat

Where it livesAn actual desktop app, not a webpage extension

PricingFree base game · optional paid cosmetic DLC

PlatformSteam · Windows and macOS listed

Visit the official project ↗

A small cat sits by your taskbar. You press a key, it paws the bar. You type another sentence, it keeps going. Eventually there are points, hats, and the extraordinary realisation that your computer now rewards you for the ordinary act of typing. Bongo Cat isn't trying to be a sophisticated companion. Its entire appeal is a tiny joke delivered with excellent timing.

Irox Games released Bongo Cat on Steam in March 2025, and the base application is marked free to play. The store currently lists optional paid DLC packs, so free does not mean that every cosmetic is included. It has lots of customisation, but you won't be feeding a hungry animal or watching a little universe develop. It is a cheerful, repetitive companion.

The activity is driven by pressing keys and clicking, rather than the pet learning your habits or responding to your mood. That's part of its charm for writers and students who like a visible sign that their fingers are doing something. It also means it may become another thing to watch when you're already distractible.

05 / 07 · A different friend whenever you open a new tab

Tabby Cat

Where it livesOnly in the browser's new-tab page

PricingFree extension, with additional animal types currently advertised free

PlatformChrome and Firefox

Visit the official project ↗

Tabby Cat doesn't climb your documents or steal your pointer. It simply gives you a cat every time you open a new tab. Each has a funny generated name and tiny animations: a blink, a nap, a reaction when you try to pet it. You can collect little goodies and save a snapshot of one you particularly like.

For someone who finds a permanent moving character too much, this is a gentler arrangement. Your pet doesn't follow you into a spreadsheet or invade a paragraph you're reading. It waits for that little in-between moment when you're about to open something new. The project's official site now advertises more animal types, including dogs, birds and turtles, as free choices.

It does replace your new-tab experience. If you currently rely on a custom dashboard, bookmarks grid or work-specific start page, that change is worth considering. The image here is an older screenshot to show the idea, not a representation of every modern character option.

06 / 07 · Characters perched on real application windows

Desktop Mate

Where it livesOn your operating-system desktop and window edges

PricingFree base download; numerous paid character DLC packs

PlatformSteam · Windows; some Mac versions, not Intel Macs

Visit the official project ↗

Desktop Mate leans into the theatrical side of the idea. Its characters perch on the edges of program windows, react when you pet them, and play with the cursor. The result is closer to sharing the desktop with a tiny animated actor than having a pet quietly sleep in the corner.

The base app is free on Steam, with a catalogue of paid downloadable characters. Prices vary, and several packs cost noticeably more than the free application, so check the character you actually want before treating this as a free collection. Steam also states that it does not support Intel-powered Macs. Compatibility can depend on the precise machine, not simply whether the word 'Mac' appears somewhere on a listing.

The character styling is decidedly anime-inspired. Some store content and user tags may not suit every audience, so it's worth browsing the character catalogue first if you're choosing something for a classroom or a shared screen. The screenshot is from an official character DLC listing and shows the familiar window-perching behaviour.

07 / 07 · A sleepy ragdoll cat with a rather ambitious animation set

DesktopCat: Mochi

This is one of the more literal virtual-pet ideas. Mochi strolls across your desktop, sits, stretches, grooms and curls up to sleep. The maker describes 28 animation states, with reactions to typing, mouse movements and being petted. If you want an animal to behave like a tiny animal rather than a game score, that is a compelling direction.

The developer says Mochi and its core interactions are entirely free, while offering a separate paid service to turn photographs of a real cat into custom animations. Importantly, that is not the same as owning every optional character pack or service. Their Mac installation documentation currently specifies Apple Silicon. Check the download page before assuming an Intel Mac is supported.

This is also the entry with the clearest permissions trade-off: the maker asks Mac users to grant Accessibility and Input Monitoring to enable global keyboard and pointer reactions, and acknowledges that its Mac build may be unsigned. If that level of access bothers you, pick a browser-only pet that needs less access, or skip installation.