Filee (knifelemon/filee) is a file converter that changes formats when you drag and drop files onto it. According to the 2.0.0 release notes published on GitHub on October 21, 2026, the distribution method changed to a Windows-only installer, and it added a way to drag images or file links from the browser onto a rounded toolbar and convert them right away.
What this tool does is change file formats offline, and the repository description presents Filee as a free open source file converter. Drag and drop files without uploading them to a server and it converts 255 formats, covering images, PDF, Word, Excel, PowerPoint, HWP/HWPX, video, audio, ebooks, and archive files. The repository description also notes that it works without installing Office. The same 2.0.0 release brought in back side addition and improved cropping, the ability to pull videos out of live photos and motion photos, and support for multiple file formats. The repository shows 8,740 stars.
However, the 2.0.0 installer is Windows-only, so this install path cannot be used on other operating systems. The specific license type is not stated in the repository description. The figure of 255 formats is likewise only the value listed in the repository description; there is no separate material measuring conversion accuracy or speed, and per-format compatibility is not included in the description either. So the added features in 2.0.0 are confirmed, but conversion quality and per-format compatibility can only be known by checking directly on Windows.