Convert Zip To Sb3 Fix May 2026

Create games, animations, and stories with the better version of Scratch with dark mode, addons, a compiler, and a lot more. Now available as an app for any desktop computer. TurboWarp is not affiliated with the Scratch Team.

To update, download and run the new installer.

To update, download the new app and replace the old one.

If you installed TurboWarp Desktop from an app store or package manager, download the update from there. Otherwise, manually reinstall the app the same way you installed it.

To update, reinstall the app the same way you installed it.

Get it from
Microsoft

or

Download installer for Windows 10+ (64-bit)

Free code signing provided by SignPath.io, certificate by SignPath Foundation.

Download installer for Windows 7, 8, 8.1 (64-bit)

If a Windows SmartScreen alert appears, click "More info" then "Run anyways".

Download on the
Mac App Store

or

Download for macOS 12 and later

or

See downloads for macOS 10.13 - 11 below

Read Linux installation instructions
Unknown operating system
convert zip to sb3 fix Project pictured: Full Sphere Path Tracer by piano_miles

Features

Speed

By compiling projects to JavaScript, they run 10-100x faster than in Scratch.

Lighter than Scratch

Uses significantly less memory and idle CPU usage than Scratch.

Dark mode

Your eyes will thank you.

60 FPS

Replace Scratch's default 30 FPS with any framerate of your choosing or use interpolation. convert zip to sb3 fix

Packager

Built in packager to convert projects to HTML files, zip files, or applications for Windows, macOS, or Linux.

Custom stage size

Change Scratch's default 480x360 stage to any size you like.

Extensions

Includes new extensions such as gamepad and stretch, and supports loading custom extensions. Re-zip files from the inside of the folder,

Remove limits

Remove almost any of Scratch's arbitrary limits, including the 300 clone limit.

Backpack

Put scripts, costumes, sounds, or entire sprites into the backpack to re-use them later.

Tools for developers

Searchable dropdowns, find bar, jump to block definition, folders, block switching, and more. Method 1: The Simple Extension Rename (Fastest Fix)

Tools for artists

Full support for transparency, an improved costume editor, onion skinning, and more.

Cat blocks

Enable the cat blocks addon to get cute cat blocks any day of the year.

And a lot more.

Re-zip files from the inside of the folder, not the folder itself. Ensure the project.json file is present and not corrupted. File stays a ZIP

The "conversion" process is usually just a matter of re-packaging these files correctly so the Scratch editor can read them. Method 1: The Simple Extension Rename (Fastest Fix)

Change the resulting Archive.zip to ProjectName.sb3 . Common "Convert ZIP to SB3" Fixes

Here is a comprehensive guide on how to convert ZIP to SB3 and how to fix the most common errors that occur during the process. What is the Difference Between ZIP and SB3?

Go to the Scratch Editor , click File > Load from your computer , and select your new file. Method 2: Manual Re-Zipping (The "Broken Archive" Fix)

Scratch has a limit on individual asset sizes (usually 10MB per sound or image). If your ZIP contains massive 4K images or long high-bitrate MP3s, the conversion to SB3 will "work," but the file will fail to load in the online editor.

If Method 1 fails with an "Application Error" or "Could not load project," the internal folder structure is likely wrong. Scratch expects the project.json file to be in the , not tucked inside a folder.

Install on Windows 10 and later

Get it from the Microsoft Store to enable automatic updates.

Get it from
Microsoft

Or download an installer.

TurboWarp Desktop uses a free code signing provided by SignPath.io, certificate by SignPath Foundation.

Install on Windows 7, 8, and 8.1

These versions of the app have the same features but are slower and less secure. Support will be removed at an unknown time in the future. If a Windows SmartScreen alert appears, click "More info" then "Run anyways".

Install on macOS 12 and later

Install from the Mac App Store for automatic updates.

Download on the
Mac App Store

Or download the app manually. Open the .DMG, then drag TurboWarp into Applications. If it tells you that TurboWarp already exists, choose "Replace".

Download for macOS 12 and later

Install on macOS 10.13 - 11

These versions of the app have the same features but are slower and less secure. Support will be removed at an unknown time in the future. Open the .DMG, then drag TurboWarp into Applications. If it tells you that TurboWarp already exists, choose "Replace".

Convert Zip To Sb3 Fix May 2026

Re-zip files from the inside of the folder, not the folder itself. Ensure the project.json file is present and not corrupted. File stays a ZIP

The "conversion" process is usually just a matter of re-packaging these files correctly so the Scratch editor can read them. Method 1: The Simple Extension Rename (Fastest Fix)

Change the resulting Archive.zip to ProjectName.sb3 . Common "Convert ZIP to SB3" Fixes

Here is a comprehensive guide on how to convert ZIP to SB3 and how to fix the most common errors that occur during the process. What is the Difference Between ZIP and SB3?

Go to the Scratch Editor , click File > Load from your computer , and select your new file. Method 2: Manual Re-Zipping (The "Broken Archive" Fix)

Scratch has a limit on individual asset sizes (usually 10MB per sound or image). If your ZIP contains massive 4K images or long high-bitrate MP3s, the conversion to SB3 will "work," but the file will fail to load in the online editor.

If Method 1 fails with an "Application Error" or "Could not load project," the internal folder structure is likely wrong. Scratch expects the project.json file to be in the , not tucked inside a folder.