About us

Hi. We're four speedcubers who write code. 🧩

We got tired of cube sites that were slow, buried in ads, or just plain wrong. So we built our own. Everything you see here was written by the four of us.

Our History

We first launched the site in 2017 site began at a different address: Rubiks-Cu.be. In 2020 we managed to grab RubiksCu.be without the dash. The Internet Archive saved a copy in June 2020, and you can still look at the old site, which still had only the 3x3 page only: a simulator, a solver, a tutorial and the cube timer.

In 2026 the owner of the Rubik's brand asked us to stop using that address. Their name was in it, and the name is theirs. We said yes and moved everything here. It was a fair thing to ask. This is how we ended up on OnlineCube.com

After that we started adding a puzzle at a time. The 2x2 came next, then the bigger cubes, then the strange ones that change shape when you turn them. Our goal is to cover all WCA puzzles so the FTO is expected to be the next one before it becomes an official competition event starting from 2027.

This site isn't connected to the Rubik's™ brand or to Spin Master Ltd. We use the words the way most people do, to refert to a 3x3 puzzle cube.

What you get

Nine puzzles. Each one comes with four things:

• a 3D puzzle you can turn with your mouse or your finger
• a solver that takes the colours of your own scrambled puzzle
• a step by step guide written for beginners
• a timer with the same scrambles used at competitions

No account and registration. Nothing to install. No shop and subscription. The most popular 3x3 page is in 16 languages.

The Square-1 solver

This is the one we're proudest of. 🏆

The Square-1 changes shape as you turn it. Scramble one and you can end up holding something that isn't a cube at all. A move that worked a second ago will suddenly jam.

One of us got stuck on one and went looking for help. We couldn't find a single site where you could type in the puzzle you were holding and get an answer back. So we wrote it ourselves.

It knows all 435 billion positions, across 170 different shapes, and it won't hand you a move the real puzzle can't make. Try it on your own scramble. If you know of another one, we'd like to see it.

We test our own work

Cube guides on the web are full of moves that were copied from somewhere else and never checked. We didn't want ours to be like that.

Every set of moves printed on this site gets played back on that page's own 3D puzzle first. It has to do exactly what the text says it does. If it doesn't, we don't publish it.

Then a program reads the guide the way a beginner would. It gets nothing but what is printed on the page, and it has to solve real scrambles with it. Our Megaminx guide was tested on 100 scrambles and solved all 100.

Some puzzles are small enough to check every single position. So that is what we did:

The first three numbers are every position those puzzles have. Our solvers look at all of them, so those move counts are proven and not guessed.

The 3x3 is a different story. Nobody can search 43 quintillion positions in a web browser. We use Herbert Kociemba's two phase method for that one. It's quick and it gets close to the shortest answer, but it isn't always the shortest. We'd rather say so than round the number in our own favour.

Who does what

Four of us, four jobs:

• Puzzle engines. The 3D puzzles, and making them turn like the real thing in your hands.
• Solvers. The search code and the lookup tables behind it.
• Guides. Writing the methods, drawing the pictures, and running the tests that try to break them.
• The site. Design, speed, and keeping all 16 languages saying the same thing.

Things we won't hide

• Ads pay for the site. That's why you see them.
• We don't sell cubes, so we've got nothing to push you towards.
• There are no accounts here. Your times stay in your own browser.
• Our 3x3 answers are sometimes a move or two longer than the shortest possible.
• We're not part of the WCA, of Rubik's, or of any cube maker.