PolyTrack
Uno Online
- Developer
- CodeThisLab
- Last Updated
- September 2021
- Game Engine
- HTML5
- Platforms
- Browser (desktop, mobile, tablet)
- Price
- Free
- Play Opens
- Official website (crazygames.com)
About Uno Online
A free browser card game in the style of UNO, also known as Four Colors: match colors and numbers and empty your hand first.
Uno Online is a browser card game built on the classic rules of UNO. Match the top card by color or number, use action cards to slow your rivals down, and be the first player to get rid of every card in your hand. This version, also published as Four Colors, is made by the studio CodeThisLab and is not an official Mattel product.
Four Colors first appeared in 2009. In October 2020 it gained real-time online multiplayer, so you can play against people from around the world as well as against the computer, and a Special mode with extra rules arrived in September 2021.
The original UNO card game was invented by Merle Robbins in 1971 and is now owned by Mattel, so anyone who has played it at a table already knows how this version works. Every card is played with a single click or tap.
Tips For Winning More Rounds
- Hold on to wild cards for the moment you have no other move.
- When you play a wild card, pick the color you hold the most of.
- Get rid of high value action cards early if a rival is close to going out.
- Watch how many cards each player has left and save Skip or Draw Two cards for whoever is about to win.
Features
- Classic Rules: Match by color or number and empty your hand first
- Action Cards: Skip, Reverse, Draw Two and wild cards change every round
- Online Multiplayer: Real-time games with players around the world
- Special Mode: An extra rule set added in September 2021
- Easy Controls: Play every card with a click or a tap
- Any Device: Runs in the browser on computers, phones and tablets
How To Play Uno Online
- Press Play and start a round.
- Play a card that matches the top card by color or number.
- If you cannot match, draw a card from the pile.
- Use action and wild cards to block rivals and change the color.
- Empty your hand before everyone else to win the round.
Uno Online Controls
- Left click play a card or press a button
- Tap play on phones and tablets
Our Take On Uno Online
What We Like
- Rules anyone can learn in a minute
- Works just as well on a phone as on a computer
What Could Be Better
- It is an UNO-style game, not the official Mattel version
- Rounds depend a lot on the luck of the draw
Who Checked This Game
- Last checked on November 3, 2026
- Play opens the official game website
- Made and owned by CodeThisLab
Every Play button on Mopoga opens the official source of the game: the developer's website, its store page or the developer's own browser build. Details on this page come from the developer and the store listing, and we check them when the game is updated.
Frequently Asked Questions About Uno Online
Is Uno Online The Official UNO Game?
No. Uno Online, also called Four Colors, is an UNO-style card game made by CodeThisLab. The official UNO brand belongs to Mattel.
Can I Play Uno Online With Friends?
Yes. The game has real-time online multiplayer, so you can play rounds against other people as well as against the computer.
Who Invented UNO?
Merle Robbins invented the UNO card game in 1971. The brand is now owned by Mattel.
Is Uno Online Free To Play?
Yes. Uno Online is free to play.
How Do I Play Uno Online?
Press Play Uno Online and Mopoga opens the game on its official website, where you start playing straight away. The keys and buttons are listed under Controls on this page.
Do I Need To Download Uno Online?
No. Uno Online runs in your web browser on a computer, phone or tablet, so there is nothing to download or install.
Can I Play Uno Online On My Phone?
Yes. Uno Online works on Browser (desktop, mobile, tablet).
What Are The Controls In Uno Online?
Use Left click to play a card or press a button, Tap to play on phones and tablets.
What Kind Of Game Is Uno Online?
Uno Online is a Card game. It is tagged Card, Classic, Family and Multiplayer.
Who Made Uno Online?
Uno Online is made by CodeThisLab and built with HTML5.
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