Screen translator overlay

Screen Translator Overlay for Windows

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.

Overlay Modes at a Glance

Thaluna real-time translation window
Use the floating real-time window when text is changing continuously.
Thaluna manual Lens Mode direct overlay
Use manual Lens Mode when you want direct overlay reading from a full-screen or selected-area snapshot.
Continuous Lens button inside Thaluna Lens Mode
Use Continuous Lens when a selected area keeps changing and you want overlays to refresh automatically.

Three overlay workflows instead of one

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.

Real-time translation window

Keep a movable subtitle-style window on screen while OCR watches the capture region for new text.

Manual Lens Mode

Use full-screen scans or selected-area snapshots to put translated text directly over the original content.

Continuous Lens

Monitor a selected area and refresh Lens overlays automatically when the content changes without reselecting it every time.

Shortcuts and presets

Use global hotkeys for snapshots, mode switching, overlay toggling, and layout presets.

Local and cloud backends

Run fully offline with local models, plug into Ollama, or use OpenRouter for better translation quality when needed.

Where this matters most

Games and emulators

Dialogue boxes, menus, tutorials, and stylized text need different OCR handling than a normal desktop app.

Anime, videos, and desktop apps

Real-time OCR can follow subtitle regions, while snapshots are useful for paused scenes, settings windows, or dense text blocks.

Long sessions

Backlog viewing, transcript saving, auto-pause, and device controls matter when you are using the translator for hours instead of one screenshot.

Better fit than a generic screen OCR app

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.

Try it on your own setup

Use the free demo to test OCR, overlay behavior, languages, and performance before moving to the full workflow.