[1] He graduated in 2002 from École centrale Paris, after receiving the "Award of Information Technology and Communication" from the SNCF as the most promising student in his class.

He is the author of various free software programs, such as zzuf, a data fuzzer, and libcaca, a color ASCII art renderer.

He is also the current maintainer of the Extension Language Kit Scheme interpreter, which has found use in many multimedia applications including audio processing.

[8] However, as of October 2024, the Elk webpage has been blanked, and Hocevar has not responded to queries about the status of the project or whether the site will be brought back.

He reverse engineered DVD subtitles in 2000,[10] and in 2005, it was found that the DRM software which triggered the Sony BMG CD copy protection scandal had unlawfully pirated open source code from the VideoLAN project which Hocevar was involved in authoring.