Panayotis Katsaloulis

Panayotis Katsaloulis is an independent developer whose open-source work centers on Jubler, a cross-platform subtitle editor written in Java that lets translators, video localisation teams and amateur subtitlers create, correct, refine and convert subtitle files for virtually any film or television project. The program opens common formats such as SubRip (.srt), Advanced SubStation Alpha (.ass), MicroDVD (.sub) and DVD Studio Pro tracks, then presents the text in a spreadsheet-style grid where every cue can be retimed visually with waveform or spectrum views, spell-checked in real time, and checked against FPS or frame-number references. Built-in shift, stretch, recode and style tools streamline batch corrections, while a translation mode keeps original and target languages side-by-side for bilingual workflows; automatic skip-back playback, keyboard-centric navigation and configurable pause-on-edit make fine-tuning short commercial spots or full-length features equally efficient. Because Jubler is packaged as a self-contained Java application, it runs unmodified on Windows, macOS and Linux, allowing collaborative teams to share project files without worrying about platform-specific subtitle encodings or rendering quirks. Panayotis Katsaloulis’s Jubler is available for free on get.nero.com, where the installer is pulled from trusted Windows package sources such as winget, always delivers the latest release and can be queued alongside other applications for unattended batch installation.