Build useful products.
Zeroflx is a small software company. We make tools that do one job well and stay out of your way.
Products
Vidzer
Video player for macOS
One library for files on your Mac, your NAS, and your Emby, Jellyfin or Plex servers. Built on mpv and FFmpeg, so most formats play without codec packs.
- Local folders, WebDAV, SMB, NFS and FTP shares, plus Emby, Jellyfin and Plex
- Learning mode with bilingual subtitles and hover-to-look-up words
- Skip intro, picture-in-picture and thumbnail previews on the progress bar
- Resumes where you stopped and remembers audio and subtitle tracks per file
macOS today. Windows and Android are in progress. Free, with a one-time Pro upgrade.
Duo Translator
Browser extension for translation and writing
Translate web pages side by side with the original, look up selected text, fix your writing in any input box, and read bilingual subtitles on YouTube.
- Bilingual page translation with sentence-level highlighting
- Selection and paragraph translation with audio playback
- AI writing help for grammar, polishing and translation in any input box
- Works with Google, Microsoft, DeepL, OpenAI, Claude, Gemini, Ollama and more
Chrome, Edge and Firefox. Free and open source.
About Zeroflx
Zeroflx is an independent software company registered in Wyoming, United States. We design and build our products ourselves, and we ship them when they are ready.
We prefer small, focused tools over large platforms. A product should be understandable in a minute and dependable for years.