Tools

Free, no sign-up, nothing stored. They run in your browser and call nothing.

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Nothing you type is sent anywhere, because there is nowhere for it to be sent. That is also why they can stay free.

3 live

Free tool EU AI Act Article 50 scope checker Six questions, and it points at the transparency duties that look like they could already apply to you. The obligations have been in force since 2 August 2026 and most coverage has been about the wrong one.
Free tool Hum, a generative music sketchpad Describe music as constraints instead of notes, then drag a line across the layer stack and hear them arrive. Built for scoring a game, and it exports one audio file per layer so an engine can mix them itself.

How it works

Free tool Do you agree with the machine? Three models answered questions about everyday technology and online privacy, and a fourth marked their answers. Mark five yourself, blind, then see where you and the machine disagreed. Five minutes, and the marks feed a real measurement: how much two people agree is the ceiling on what any model judge could score.

Why it exists

Planned

Planned Self-host versus API break-even What it actually costs to run your own model, including the idle time every published benchmark leaves out.
Planned Is your scheduled agent actually alive Tells the difference between an agent that ran and had nothing to do, and one that stopped.
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