About ToolDeck

ToolDeck is a collection of free online calculators, converters and text tools. We built it because most calculator sites are slow, cluttered with popups, or request sign-ups. ToolDeck is the opposite: fast pages, clean interface, instant results.

Every calculation happens locally in your browser — your numbers never leave your device. We don't require accounts, we don't store inputs, and the site is supported by unobtrusive ads.

Part of the Deck family: FreeDeck (free games) and PromoDeck (coupon codes).