I’ve just released AnsiGo, a simple ANSi to PNG converter written in pure Go : it simply takes an ANSi file as input and converts it to PNG. No external dependencies are required (the font data is embedded) and AnsiGo compiles into a single binary file. At the moment you will have to compile it yourself, but I hope to provide binary versions and a Windows executable in the future.

Edit : precompiled binaries for Windows (both 32-bit and 64-bit) are available on the repository.

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                    AnsiGo 1.00 (c) by Frederic CAMBUS 2012
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USAGE:    ansigo inputfile

EXAMPLES: ansigo ansi.ans

The project is hosted on GitHub : AnsiGo