knifelemon/filee v1.12.0 is a file converter that converts files inside your own computer instead of uploading them to a server. It is written in C# and follows the MIT license. The latest version pointed to by the GitHub release is v1.12.0.
The repository description says it converts more than 244 formats locally with no office software. Its targets include images, PDF, Word, Excel, PowerPoint, Korean document formats such as HWP/HWPX, video and audio, e-books, and archive files. The README explains that these conversions are performed without Hangul Office and LibreOffice. If you hold down the Ctrl key while dragging a file, a donut-shaped conversion menu pops up at the cursor position, showing only the formats that suit that file. The converted result is saved next to the original file. The fact that it handles Korean documents without office software is its practical value for local Korean document processing.
The technical core is RoutePlanner in Filee.Core. It runs Dijkstra's shortest path (up to 3 hops, where a hop means passing through one edge in the graph) over converter edges to automatically find a multi-stage conversion path from HWP to DOCX via HWPX. It is built with Avalonia and C#, and has 407 source files, 101 test files spread across 5 test projects, 3 GitHub Actions workflows, 6 design documents, and 7461 stars.
That said, the changes in v1.12.0 are not included in the given record. No benchmark figures are presented either, so there is no basis for comparing the speed and accuracy of converting 244 formats with other tools. There are 2 contributors, so it is effectively centered on a single developer. The repository was created on September 29, 2026. For now, it can be seen as an option for processing Korean documents offline, but there is no information to judge whether it can replace commercial tools.