Convert ZIP to SB3 Online (No Upload - 100% Private) - ezyZip
No matter which path you choose, you'll have your Scratch project ready to open and edit in no time.
Right-click the newly created archive.zip and select Rename . Change Extension: Delete .zip and type .sb3 at the end. convert zip to sb3 updated
: Go to the Scratch Editor , click File > Load from your computer , and select your new .sb3 file. 2. Modern Conversion Tools (Updated 2026)
I notice you've sent two separate requests: Convert ZIP to SB3 Online (No Upload -
Select all the files inside your project folder (the json, the images, and the sounds). Right-click and choose Send to > Compressed (zipped) folder .
This updated guide explains the fastest, safest methods to convert ZIP files back to .sb3 format, covering both online and manual techniques as of mid-2026. What is a .sb3 File? An .sb3 file is actually a renamed ZIP archive containing: : The core code structure. Asset Files : Costumes (PNG/SVG) and Sounds (WAV/MP3). : Go to the Scratch Editor , click
This updated guide explains exactly how to convert a ZIP file to SB3 on any device. What is an SB3 File?
If Scratch throws a "Could not load project" or "Project archive corrupt" error after conversion, check for these common mistakes: