Work out the deterministic address a CREATE2 deployment gets from a deployer, salt and init code hash, and the address a plain CREATE deployment gets from a deployer and nonce.
CREATE2 Address Calculator works entirely in the browser tab. Open it, use it, close it. Nothing about the session outlives the page.
The parsing, the maths and the formatting all happen in JavaScript on this page. No request carries your input anywhere, because there is no endpoint for one to reach.
You will find it under Blockchain, alongside 6 other tools for the same sort of job.
Runs in this tab, so nothing you type is uploaded.
deployerAddress: 0x0000000000000000000000000000000000000000 salt: 0x0000000000000000000000000000000000000000000000000000000000000000 initCodeHash: 0xbc36789e7a1e281436464229828f817d6612f7b477d66591ff96a9e064bcc98a nonce: 0
Create2 address: 0x4D1A2e2bB4F88F0250f26Ffff098B0b30B26BF38 Create address: 0xBd770416a3345F91E4B34576cb804a576fa48EB1
Yes. It is JavaScript running in this tab, so once the page has loaded it needs nothing further from the network. Put the machine in flight mode and it carries on. Nothing you do here is sent anywhere, because there is nowhere for it to go.
No. Reload the page and it starts from nothing. There is no account, no saved state and no cookie holding your last session. That is a deliberate trade: it cannot lose your data because it never keeps any.
Timing comes from performance.now(), the high resolution clock the browser provides, rather than from setInterval, which drifts by a few milliseconds every tick and compounds over minutes. What can still shift things is the browser throttling a tab in the background, so leave it visible if the timing matters.
Where a sound makes sense, it is generated with the Web Audio API rather than loaded as a file, so there is nothing to download and nothing to block. Browsers refuse to start audio until you have interacted with the page, which is why the first press is what switches it on.
Yes. The controls are sized for touch and the layout collapses to one column on a narrow screen. Bear in mind that a phone locking its screen will suspend the page, and timing stops with it.