Play Guitar chords without using CAPO?

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I usally listen to acoustic versions of any song and if I like it I search for the chords online and try to play it. But for most of the sites the chords are listed with a CAPO on and I don't own a CAPO. I know that these chords can be played out without a CAPO. Is there any sites which converts these with CAPO chords to WITH NO CAPO chords? I know it's difficult to play wothout a CAPO but I want to try it out.