LZKAHH
Independent software / Local-first / Available worldwide

Two focused products · 中文 + English

Useful tools. Quietly built. Clear boundaries.

Small, focused software for safer AI workflows and faster visual thinking.

Built to keep complex tasks simple, local-first, without forced sign-up.

Explore products Why these tools

Local-first · Privacy-minded · 中文 + English

[ 02 ] Product index

Two live products

01

Clean before you paste

SafePaste

Detect and replace likely secrets locally before sharing text with AI or other services.

  • Web app, CLI, and browser extension
  • Local processing by default
Open SafePaste ↗
02

Think at the speed of a sketch

Quick Whiteboard

A fast, local-first canvas for notes, diagrams, and visual thinking—no account required.

  • Open and start drawing immediately
  • Your board stays in your browser
Open Whiteboard ↗
Shared principles Local-first · Clear boundaries · Useful defaults · Bilingual

Why these tools

Software should ask for less trust.

Focused products, explicit boundaries, and defaults that help before they ask for anything.

  1. [01]

    Focused scope

    Each product solves one clear problem without becoming a platform.

  2. [02]

    Clear boundaries

    Local-first behavior is part of the product contract, not a marketing claim.

  3. [03]

    Useful defaults

    Open the tool and start. Accounts and setup stay optional whenever possible.