Free tools that run in your browser

Single-purpose utilities that do the work on your own machine. Nothing you open is uploaded anywhere.

Developer

Convert Unix timestamps to dates and back. Handles seconds and milliseconds, shows UTC and local time, and runs entirely in your browser.

Convert iPhone HEIC photos to JPG in your browser. Batch conversion, adjustable quality, and your photos are never uploaded to a server.

Convert between metric and imperial units for length, weight, temperature, area, volume, speed, data and time. Runs in your browser.

Your files are never uploaded.