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SB3 SB2
File conversion

Convert SB3 to SB2

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Is it possible to convert SB3 to SB2?
Yes - SB3 converts to SB2.

Scratch 3 can open .sb2 files (upgrading them to the current format). To go back to .sb2 is not directly supported by Scratch - some third-party tools (e.g. sb3tob2 Node.js utility) attempt it, but with limitations.

2 programs
Also to SB2: SCRATCH · SB

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert SB3 to SB2

Converting a .SB3 file to .SB2 lets you open the content in software that prefers the .SB2 format, though some details may change compared with the original. The programs listed below open .SB3 files and can save or export them to .SB2 (or a closely related format). One of them is Scratch: Scratch is a visual, block-based programming language and online community developed by the MIT Media Lab, aimed at teaching programming concepts to children….

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

Programs that convert SB3

SB3 to SB2 Converter
Scratch

About these formats

.SB3 Scratch 3.0 Project File

An SB3 file is a Scratch 3.0 project - a visual programming project made with MIT's Scratch. Open it at scratch.mit.edu (File → Load from your computer) or in the free Scratch Desktop app.…

Open .SB3 details →
.SB2 SerialBox serial numbers package

A .SB2 file is associated with SerialBox serial numbers package, a misc file.

Open .SB2 details →