About Sandbox
Sandbox is a local emulator of the TON blockchain: deploy a contract into a simulated network on your own machine and send it messages. You inspect the result without touching a real network or spending anything.
It is published under the MIT license in the ton-blockchain organization and the latest update on the repository dates from September 2026.
Highlights
- Runs entirely on your own machine
- No real network or funds involved
- MIT license
- Updated in September 2026