Free browser tools

Free Cold Fusion and LENR Measurement Tools

Measurement rigor is the theme. Use these tools to turn cold-fusion and LENR claims into numbers you can inspect: COP, excess energy, claim history, replication status, and energy-density scale.

Key facts

Key facts

Privacy

Local only

The tools run in your browser. No claim, input, or calculation is sent to a server.

Scope

3 tools

Calculate excess heat, explore cold-fusion history, and compare claimed energy density.

Standard

Skeptical-fair

Outputs are framed as measurement checks, not proof or disproof of a nuclear effect.

Calorimetry check

Excess heat calculator

Free client-side excess heat calculator for input power, output heat, duration, COP, excess energy, and uncertainty bands.

  • COP calculator
  • excess heat calculation
  • LENR calorimetry calculator
Claims vs outcomes

Claims timeline explorer

Interactive sourced timeline of cold fusion and LENR claims, replication outcomes, DOE reviews, Google research, ARPA-E, and E-Cat context.

  • cold fusion history
  • LENR replication
  • cold fusion timeline
Scale check

Energy density comparator

Compare claimed energy output against chemical and nuclear energy-density baselines with a free browser-only calculator.

  • energy density comparison
  • energy density calculator
  • cold fusion energy density

Evidence standard

Use the number to ask the next question

A calculator can catch scale errors and clarify a claim. It cannot replace a controlled experiment. Read outputs alongside the replication crisis, the physics, and the source bibliography.