← Main simulatorSpecter DIY
newest Firmware
Starting locally…
Specter Drafts
NEVER ENTER A REAL SEED PHRASE.
Playground
Specter 3.0 Draft Marco
Starting locally…
Alternative Playground
Specter 3.0 Draft Schnuartz
Starting locally…
Removable media
Virtual SD card
Select, drop, or paste multiple files at once.
- No files on card
Virtual MemoryCards
Cards are ejected.
A PIN may already be selected: “21”.
What gets imported?
Unsafe public test seeds only. Ghost, Zoo, their BIP85 children, public demo PSBTs, and a public-only multisig example. Two virtual MemoryCards receive Ghost (PIN 1234) and Zoo (PIN 21). Mirror’s seed is never stored.
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Playground devices use their original MockUI prototypes; some wallet and media functions are not implemented in those forks.
Virtual USB ConnectionUse these browser simulators with a compatible desktop companion app.
Specter Virtual Host creates a local connection between this simulator and a compatible companion app, such as Specter Desktop. It runs only on your computer and uses Specter DIY's official simulator port.
Download for Windows (.exe)
Download for Linux (x64)
Download for macOS (Apple Silicon)
Download for macOS (Intel)
Source code, releases and checksums: github.com/Schnuartz/specter-virtual-host
- Download and run Specter Virtual Host for your operating system.
- Open the simulator, finish setup with a public test seed and reach Applications.
- Enable Device settings → Communication → USB communication.
- In your compatible companion app, add or rescan hardware devices. The simulator appears as Specter DIY.
Unsigned preview builds may trigger a Windows SmartScreen or macOS Gatekeeper notice. On Linux/macOS, make the downloaded file executable before running it. The bridge listens only on this computer.