Picture of David Foster


My name is David Foster. Check out the cool software I’ve written!

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Featured Projects

Logo for Crystal Web Archiver

Crystal Web Archiver

Downloads websites in an archival-friendly format.

Logo for HandBrake Subtitles

HandBrake Subtitles

Extends the popular HandBrake ripping and transcoding tool to enable processing subtitles from files, including the SSA subtitles found commonly in anime.

Logo for RDiscount


Converts Markdown text to HTML, in Ruby. Includes many useful Markdown extensions.

Logo for TypedDict


Python typechecker support for recognizing structured dictionaries with specific named keys mapped to specific value types. Ubiquitous in JSON.


Much information related to my activities prior to 2010 can also be found on my old site.