In Scratch 3.0, projects on the Scratch website can only be shared if they are smaller than 50 MB. If a message appears saying that the project is too large, it may be helpful to try to compress or remove long sounds, like music. Also, if the project is in Scratch 1.4 or Scratch 2.0, the project can be opened in Scratch 3.0 and uploaded from there.[1]
The Project could not save alert

Introducing a higher limit in Scratch 2.0

We used to be stuck with the 10 megabyte limit due to limitations in Java. We hope to be able to extend this limit in the next version of Scratch - but server space costs $! Unlimited is too big, 10 MB is too little.

– Lightnin, a former member of the Scratch Team at MIT

The Scratch 2.0 File Format uses a more efficient storage system than the 1.4 file format, so even if it remained 10MB, projects could have more content. As it turned out, the limit was raised to 50 MB, 5 times the previous amount, although this still isn't true for projects uploaded from 1.4. However, each individual "asset" (sound/image) must be 10 MB or less.

Not many projects get close to the limit, but one project that got close is this project.

How to tell when a Scratch 1.4 project is too big

Archive.png This article or section documents something not included in the current version of Scratch (3.0). It is only useful from a historical perspective.

If one is offline, then they will know when they try to upload a project to the Scratch Website; Scratch will display this error message when a file is too big to upload:

The message that appears if a project is over the size limit in Scratch 1.4.

How to tell when a Scratch 2.0 project is too big

If one is offline, then the user will know when they try to upload their project to the Scratch Website; Scratch will display this generic error message when the file is too big to upload:

The message that appears if a project is over the size limit in Scratch 2.0.

If the user is on the website, though, they'll know when their project is too large when they cannot add any more costumes, sounds, backdrops, or anything to it.

Reducing Project Size

Main article: Project Compression

The best way to reduce the size of a project is to compress the sounds and images. Below are some tips:

See Also

References

  1. https://scratch.mit.edu/discuss/post/3056585/