Bitmask

A wallet where the user, and only the user, holds the keys. The interface is the only safety net.

Bitmask is a Bitcoin-only, self-custodial wallet delivered as a browser extension: taproot and Lightning enabled, and the on-ramp to assets issued on RGB smart contracts. Self-custody means no custodian, no account recovery desk and no one to reverse a mistake. Whatever confidence the user feels has to come from the interface itself.

I was the designer on Bitmask at DIBA Global, owning the design process and the visual design. Bitmask is a separate product from the DIBA marketplace: one company, two products, each with its own job and its own interface.

Two hard constraints defined the design work:

• Mistakes are irreversible. In a self-custodial wallet there is no "forgot password" and no support line to undo a bad transaction. The interface is the only thing standing between a user and a permanent loss. Confidence and clarity at every step were not polish; they were the product.
• A brutal surface. A browser-extension popup is a tiny canvas. Every step and every pixel has to earn its place while keeping a high-trust financial flow calm.

Put together: make a high-stakes financial tool legible and safe enough that a mainstream person would actually use it, inside a popup.

• End-to-end design. Wireframes to prototypes to high-fidelity, building a brand-led interface for the wallet rather than a generic crypto skin.
• High-trust flows. Creating, backing up and restoring a wallet; sending and receiving; signing. The safe path had to be the obvious one at every step.
• Iterate on real feedback. Continuously refined the designs against user feedback and usability testing.
• One coherent identity. Partnered with the marketing team so the brand stayed consistent across product, site and campaign.

The wallet is live at bitmask.app. My earlier dedicated visual case study, with screens and process, lives at tashaamanda.studio.site/bitmask. Its sibling product, the DIBA marketplace, has its own case study.