Tools

Small utilities for checking how things look before you ship.

Open Graph preview — paste a public URL to approximate X, Slack-style, and LinkedIn-style link previews (plus raw meta tags).

Unsure calculator — compute with uncertain inputs using range notation like 10~15, then inspect a histogram and percentiles.

What is my browser? — inspect browser, system, screen, network, and device details from your current client.

親戚稱呼計算機 — click relationship steps (父, 母, 兄, 弟, 子, 女, …) to compute the right Chinese kinship title (堂嬸, 姑丈公, 內弟…).

香港特權量表加強版 — 勾選 18 歲前的資源與經歷，計算香港家庭優勢分數、階層定位與估算百分位。

Shared Passion Matrix — a free 30-min couples activity to map shared leisure onto a win-win quadrant, then rank activities by enjoyment, cost, and time.