1)   Guitar-Online Tuner 2.0
This guitar tuner allows standard and open tunings. The program shows the name of the note, together with its place on the stave, and numerical values of pitch/frequency. If the open tunings doesn't fit your needs, you can use the keyboard too.
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 2)   Afinador de Guitar-Online 2.0
Este afinador para PC/Windows le da las seis notas correctas para afinar su guitarra (Mi-La-Re-Sol-Si-Mi) asi como varios open-tunings. El teclado (en modo cromatico) le permitira afinar su guitarra con aun mas notas.
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 3)   Accordeur de Guitare-Online 2.0
Cet accordeur autorise l'accordage standard, a savoir Mi-La-Re-Sol-Si-Mi ainsi que l'accordage en Open-Tuning.
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