SWOP

The desktop program that does what the website cannot — generate wallets, send tokens and sign contract interactions, with the key never leaving your machine.

SWOP is a Windows program you run on your own computer. It is included with the subscription.

It exists because of a deliberate gap in the website. The site reads public addresses and holds no keys, which makes it safe but also means it can never move anything. Everything that requires a private key happens in SWOP instead, on your machine.

What it does

Create or import a wallet. Generate a new wallet, or import one you already hold — including a paper wallet, by typing or scanning the key.

Generate at scale. Produce one wallet or a hundred in a batch, when you need a set of fresh addresses.

Export as a printable card. A wallet can be exported as an image with QR codes, designed to be printed. This is how a paper wallet is produced: generated offline, printed, and never stored digitally.

Send ERC-20 tokens and ETH. Build and sign a transfer locally, then broadcast it.

Interact with smart contracts. Staking, presales and any contract call that needs a signature — the operations normally only available through a browser wallet that holds your key.

How the key is handled

The key is entered on your computer and used there. It is not transmitted anywhere, and everything is erased when you close the program.

That is the reason for the separation between the two products. A website that could sign transactions would need access to a key, and any such access is a target. Keeping signing on a local machine removes the server from the problem entirely.

Languages

SWOP is translated into more than 40 languages, including right-to-left scripts.

The SWOP page

SWOP in the navigation menu opens its page on the site. From there you can:

• Download for Windows — the current version, with its size and SHA-256 checksum to verify it
• Download Whales OS — the bootable USB image, with its own checksum
• See the languages SWOP is available in
• Follow Getting started: download and open, create or import a wallet, operate

SWOP is free for members.

What it offers, as the page lists it:

• Create or import — a fresh wallet, or one you already own. Your keys stay on your PC
• Generate at scale — one wallet or a hundred in one go
• Export a paper wallet — public address, private key, recovery phrase and QR, ready to print and keep offline
• Operate on Ethereum — send ETH and ERC-20 tokens, check balances, set the gas, sign and broadcast
• Token-risk flags — every token scored Safe, Verify or Malware, so you do not sign away funds to a scam or spam contract
• Zero-persistence — close it and everything is wiped: keys, history, sessions, even the language you picked
• Always the latest — SWOP checks for new versions when it starts and takes you to the newest one

Installing

Download from the SWOP page on the site. The build is portable — there is no installer. Download it, launch it, and it runs.

Verify the file against the published checksum before running it. The page provides the checksum alongside the download.

Whales OS

Also on that page: a bootable USB image.

It boots a clean system from the USB stick, with the machine's installed operating system untouched and offline. For generating a wallet that must never touch a connected computer, this is the strongest option available without dedicated hardware.

It ships with its own .sha256 file so you can verify the image before writing it to a stick.

Versions

SWOP checks for updates against the site. New versions are mandatory rather than optional: when one is released, older builds stop and prompt for the update.

This is intentional. A version that handles keys should not be left running once a newer one exists.

The source code

SWOP's source is published at github.com/siadewhales/swop, under a licence that permits reading and testing but not redistribution.

It is public so that anyone handing a private key to a program can read what that program does with it.