Simple QR code generator.
Decode a QR code with your camera, or by pasting or uploading an image. Shows the contents as plain text.
Convert images between JPEG, PNG, WebP, etc using ImageMagick.
Phone compass with a rotating dial. Shows the heading, named direction (NNW), and magnetic field strength.
Phone bubble level, with angle readout.
Your current latitude and longitude as copyable text, with a map preview to confirm it before you share it.
Fullscreen on-screen ruler. Inches on one side, metric on the other, sized to your screen's DPI.
Evan Wallace's interactive IEEE 754 visualizer. Useful for diagnosing floating point math issues.