Real-time translation window
Keep a movable subtitle-style window on screen while OCR watches the capture region for new text.
Screen translator overlay
Thaluna is a screen translator overlay for Windows designed for games, anime, manga, visual novels, and desktop apps with on-screen text. It gives you a floating real-time translation window, manual Lens Mode, and Continuous Lens for automatic selected-area refresh.



Most screen translators force one capture model. Thaluna gives you a floating real-time translation window, manual Lens Mode, and Continuous Lens for changing selected areas. That matters because games, anime subtitles, manga pages, launchers, and desktop apps do not all behave the same way.
Keep a movable subtitle-style window on screen while OCR watches the capture region for new text.
Use full-screen scans or selected-area snapshots to put translated text directly over the original content.
Monitor a selected area and refresh Lens overlays automatically when the content changes without reselecting it every time.
Use global hotkeys for snapshots, mode switching, overlay toggling, and layout presets.
Run fully offline with local models, plug into Ollama, or use OpenRouter for better translation quality when needed.
Dialogue boxes, menus, tutorials, and stylized text need different OCR handling than a normal desktop app.
Real-time OCR can follow subtitle regions, while snapshots are useful for paused scenes, settings windows, or dense text blocks.
Backlog viewing, transcript saving, auto-pause, and device controls matter when you are using the translator for hours instead of one screenshot.
Thaluna is specifically shaped around reading flow: capture area sizing, translation window sizing, Lens Mode overlays, OCR language selection, backlog history, and saveable window layouts.
Use the free demo to test OCR, overlay behavior, languages, and performance before moving to the full workflow.