What is a Scratch project id?

It is the number in a scratch.mit.edu project link. In https://scratch.mit.edu/projects/10128407/ the id is 10128407.

Can I paste a full Scratch link?

Yes. Paste the whole link into the box on this site and Turbo Scratch keeps the number for you.

Why does a project show 'not found'?

The project is unshared, deleted, or the id has a typo. Turbo Scratch can only play shared projects that the Scratch API returns.

Why is there no sound?

Browsers block sound until you click or tap the page. Click the green flag or the stage once and the sound starts.

Does the player work on a phone?

Yes. The player works in mobile browsers. Turn the phone sideways and use fullscreen for the best view.

Why is the project slow to start?

The player downloads the project from Scratch and compiles it first. Large projects take a moment before the first frame.

How to Play a Scratch Project by ID or URL

Every Scratch project has a number, called its project ID. Turbo Scratch uses that number to open the project in the TurboWarp player. You can paste the number, or you can paste the whole scratch.mit.edu link and let the site find it.

What a Scratch project ID is

A Scratch project lives at a URL like this:

https://scratch.mit.edu/projects/10128407/

The ID is the number after /projects/. In this example the ID is 10128407. An ID is a whole number. Turbo Scratch accepts 5 to 12 digits and rejects an ID that starts with zero.

A Scratch ID is permanent for that project. When someone remixes a project, the remix gets a new ID of its own. If you want a specific version, use the ID of that version, not the original.

How to find a project ID

Open the project on scratch.mit.edu.
Look at the address bar of your browser. The number after /projects/ is the ID.
On a phone or tablet, tap the Share button on the project page, then tap Copy Link. The copied link holds the ID.
If you are looking at a remix, check the address bar again. The remix has its own ID, even when the title looks the same.
If you only have a screenshot or a video, search the project title on scratch.mit.edu, open the result, and read the ID from the URL.

How to play the project here

Copy the ID, or copy the full https://scratch.mit.edu/projects/ID/ link.
Paste it into the box at the top of the page. The box keeps the digits and ignores the rest of the link.
Press Enter, or click the arrow button. The project page loads and the TurboWarp player starts the project.
Wait a moment. The player downloads the project from Scratch and compiles it before the first frame.
Click Add to Favorites if you want to find the project again. Favorites stay in your browser.

You can also open a project directly with the URL format https://turbo-scratch.org/10128407. Replace the number with any shared Scratch project ID. Links of this shape are safe to share.

Why a project does not load

"Project not found." The project is unshared, deleted, or the ID has a typo. Open the original link on scratch.mit.edu to check.
The project never starts. The browser may be offline, or a school or work network may block turbowarp.org. Test the same project on turbowarp.org.
There is no sound. Browsers block sound until you interact with the page. Click the green flag or the stage once.
Keyboard controls do nothing. Click the stage first. The stage needs keyboard focus before it can read key presses.
The project stutters. The project may be heavy, or the browser may be slow. Read How to fix lag in Scratch projects.
Cloud data is empty. TurboWarp uses its own cloud server. Data from Scratch does not carry over.
The project is unshared. Only the owner can download an unshared project now. Save it to your computer in the Scratch editor, then load the file in TurboWarp.

The player also runs on phones. For the best result, turn the phone sideways and tap the fullscreen button in the player.

One more note on safety: never type your Scratch password into a site that is not scratch.mit.edu. Turbo Scratch never asks for it.

Frequently asked questions

What is a Scratch project id?: It is the number in a scratch.mit.edu project link. In https://scratch.mit.edu/projects/10128407/ the id is 10128407.
Can I paste a full Scratch link?: Yes. Paste the whole link into the box on this site and Turbo Scratch keeps the number for you.
Why does a project show 'not found'?: The project is unshared, deleted, or the id has a typo. Turbo Scratch can only play shared projects that the Scratch API returns.
Why is there no sound?: Browsers block sound until you click or tap the page. Click the green flag or the stage once and the sound starts.
Does the player work on a phone?: Yes. The player works in mobile browsers. Turn the phone sideways and use fullscreen for the best view.
Why is the project slow to start?: The player downloads the project from Scratch and compiles it first. Large projects take a moment before the first frame.