Chrae Tools
Free · Private · No accounts

Small tools that run in your browser.

Free, private, no accounts — everything stays on your device.

Chrae Tools is a collection of free online tools: a unit converter, a scientific calculator, a to-do list and a TV buying guide. Each one runs entirely in your browser — no sign-up, no ads, and nothing sent to a server.

Utilities

Everyday converters and calculators, no ads in the way.

01

Unit converter

Length, weight, volume, area, speed and temperature.

02

Calculator

Basic and scientific, with keyboard input and history.

03

TV buying guide

OLED vs QLED vs Mini-LED, and what every brand's name for them really means — updated for 2026.

Productivity

Small tools for keeping track of things.

04

To-do list

Simple lists with due dates, saved on your device.

Guides

Short reads that go with the tools — no app needed.

TV buying guide

TV technologies explainedEdge-lit to Tandem OLED: how each panel makes light and colour, with pros, cons and animated diagrams.TV brand names decodedWhat Samsung, LG, Sony, TCL, Hisense and the rest actually mean by Neo QLED, QNED, Bravia, ULED, Micro RGB and more.TV name decoderType any brand name and see the real technology — or pick a technology and see every brand's name for it.Compare TV technologiesPick up to four technologies and compare blacks, brightness, colour, viewing angle, burn-in risk, blooming, motion and price tier.

More from Chrae Lab

Our other sites — same idea, everything runs on your device.

FIRE Planner

Model your retirement year by year — income, taxes, withdrawals.

Chrae Games

Quick games that play in your browser.