Real Windows appOCR overlay translator

Translate Games, Manga & Anime Directly On Screen

Thaluna captures text from games, visual novels, manga panels, anime subtitles, videos, and desktop apps, then shows the translation on top of the original screen.

Download Demo Buy on Itch.io - $1.99

Game Lens Real-Time OCR Lens Mode Manga Mode Audio BETA

Overlay showcase Game Lens before / after

Original Translated

Game Lens overlay example. Original-style UI first, translated overlay second. Click to enlarge.

"The program works great in indie horror games with a PSX-style look."

Community feedback

"Continuous Lens mode is exactly what the app needed."

Community feedback

"The translation process is incredibly fast now; it feels very smooth while reading."

Community feedback

"Great work and worth the price."

Community feedback

What is Thaluna?

A Windows translator that reads your screen and overlays the translation

Thaluna is a Windows screen translator for games, visual novels, manga, anime subtitles, videos, and desktop text. It uses OCR, real-time translation, Game Lens overlays, Lens Mode, local models, and optional cloud AI to translate text directly on or near the original content.

For games and visual novels Translate dialogue boxes, item descriptions, menus, tutorials, and typewriter text without alt-tabbing.

For manga and anime subtitles Use Manga Mode, Lens Mode, OCR preprocessing profiles, and custom subtitle color presets for hard-to-read text.

For privacy-first workflows Run local models offline by default, or enable optional OpenRouter and OpenAI-compatible APIs when you want cloud translation.

See It In Action

Real-Time Translation

No pausing, no alt-tabbing. Thaluna translates game dialogue instantly as it appears on screen. Perfect for anime, visual novels, and games where dialogue appears on screen.

Seamless real-time overlay
Floating translation window

Manga Mode

Automatically detects text bubbles and vertical layouts. Enjoy your favorite manga with clean, overlaid translations.

Vertical text support
Original bubble overlay

Video Guides

Feature Showcase: Real-Time Translation

Full overview of real-time translation features and customization options.

Feature Showcase: Lens Mode & Manga Mode

See the core translation features in action with static overlay.

Watch Anime & Movies in Any Language

See the translation speed and versatility in animation.

Videos demonstrate features on earlier versions. See the Changelog for recent updates.

Lens Mode

Lens Mode lets you read translated text directly on top of the original, keeping the page, scene, or document exactly as it looks. Manual snapshots stay available, Continuous Lens can monitor a selected area for manga and static pages, and Game Lens adds a game-focused automatic overlay workflow for moving scenes and subtitle regions.

Read translations directly on the original text
Preserves layout and visual style
Translate full pages or selected areas
Continuous Lens can auto-refresh a selected area when content changes
Game Lens keeps translated game text visible until the source changes or disappears

Automatic game text overlay

Game Lens translates game text directly on screen

Game Lens is a dedicated game translator mode for Windows. Select the region where a game shows dialogue, subtitles, item descriptions, quest text, menus, tutorials, or UI labels, and Thaluna automatically refreshes translated overlays when the text changes.

Unlike a normal floating translator window, Game Lens can place translated text in separate overlay boxes over the original on-screen text. It is designed for games where text appears inside the world or UI, including slowly appearing typewriter dialogue and scenes where a description stays visible for a long time.

Game OCRfor dialogue, menus, items, tutorials

Auto refreshwaits for animated text to settle

Overlay boxestranslated text placed in context

Read the Game Lens guide

Original inventory before Thaluna translation — The image switches between the original game UI and Thaluna's translated overlay. Click to enlarge.

Game Lens translated inventory overlay — The image switches between the original game UI and Thaluna's translated overlay. Click to enlarge.

Video demo

Game Lens showcase across 3 game styles

Watch Thaluna translate visible game text directly over the original UI in short demo clips.

Demo footage is used only to demonstrate Thaluna's OCR overlay workflow. All game titles and footage belong to their respective owners.

Watch the Game Lens demo

Key Features

Offline & Secure

Works offline by default. Perfect for privacy and travel. No data leaves your device unless you enable optional cloud translation.

Real-Time Speed

Translate anime and games instantly without pausing. Designed for seamless immersion.

Audio Translation BETA

Use live system audio transcription through OpenRouter Speech-to-Text when OCR is unreliable or subtitles are unavailable.

Smart OCR

Optimized for visual novels, manga, anime subtitles, and complex game text, with OCR preprocessing profiles and optional auto-crop for subtitle-heavy scenes.

Game Lens Overlay

Monitor a game region and place translated text directly over dialogue, menus, item descriptions, tutorials, and subtitles with separate overlay boxes.

OCR Preprocessing Profiles

Use subtitle-focused OCR profiles for light subtitles, yellow subtitles, custom text colors, and auto-crop workflows when raw OCR needs help.

Game-Friendly

Works effortlessly in windowed and borderless modes. Lightweight and non-intrusive.

Customizable

Adjust fonts, colors, translation chains, and manage CPU/GPU performance settings.

Flexible Model Stack

Use built-in local models, Ollama, OpenAI-compatible local APIs, or optional OpenRouter cloud translation when needed.

Ollama setup guide

Built For Real Use Cases

Thaluna is not just a generic translator tab. It is a Windows screen and audio translator built for games, visual novels, manga, anime subtitles, voice-acted videos, and other OCR-heavy or speech-heavy workflows.

Game OCR

Game Lens Translator for Windows

Game Lens, real-time OCR capture, in-place game text overlays, OCR preprocessing profiles, presets, GPU OCR controls, and local or cloud translation backends.

Read guide

VN workflow

Visual Novel Translator

Backlog history, transcript saving, presets, Minimal Mode, and OCR workflows for games where hooking is not enough or not available.

Read guide

Manga OCR

Manga Translator with Overlay

Lens Mode, Manga Mode, vertical Japanese support, and selected-area scanning for cleaner page reading.

Read guide

Screen overlay

Screen Translator Overlay

Understand how Thaluna handles games, apps, videos, and on-screen text with real-time, manual Lens, and Continuous Lens workflows.

Read guide

Compare Thaluna Against Other Tools

If you are comparing OCR, audio, and screen translation tools, the useful question is whether the app covers your full workflow: offline use, real-time OCR, Audio Translation BETA, snapshot capture, backlog, transcript saving, local models, cloud options, shortcuts, presets, and hardware controls.

Comparison

Thaluna vs Other Tools

Use a practical checklist to compare Thaluna with OCR, screen translation, audio translation, Lens, and local/cloud model workflows.

See comparison

Positioning

Why Thaluna

See where Thaluna is strongest: offline-first OCR, Audio Translation BETA, Lens Mode, backlog, transcript saving, local models, and long-session comfort.

Read page

Feature map

Capabilities

See the actual product surface: Game Lens, real-time OCR, OCR preprocessing profiles, Audio Translation BETA, Lens controls, presets, transcripts, shortcuts, and translation stack.

Explore features

More From Thaluna

Thaluna Translator stays focused on OCR and screen translation. Thaluna Image is a separate local editor for character images, cutouts, layers, backgrounds, effects, pixel sprites, and saved editing sessions.

New Windows app

Thaluna Image

Local image editor for character scenes, background removal, watermarking, speed lines, pixel-style outputs, sessions, and publish-ready edits.

Open Thaluna Image page

Companion utilities

Free Thaluna Tools

Small helper tools for subtitle translation and quick text translation, separate from the main paid translator.

Open free tools

Why Thaluna Instead of Generic Free Translators?

Thaluna is stronger when you want the whole workflow in one place: offline-first OCR, Game Lens, OCR preprocessing profiles, Audio Translation BETA, Lens Mode, manga support, backlog history, transcript saving, presets, shortcuts, local models, optional Ollama, Custom Local API, and optional OpenRouter.

Why Thaluna

Works out of the box

No mandatory cloud account, no mandatory subscription, and no mandatory extra setup just to start translating.

Read full page

Why Thaluna

Built for reading flow

Backlog history, transcript saving, presets, Minimal Mode, Lens Mode, and Manga Mode turn it into more than a simple OCR utility.

Read full page

Why Thaluna

Flexible translation stack

Use built-in local models, Ollama, Custom Local API, OpenRouter translation, or OpenRouter Speech-to-Text depending on your workflow.

Read full page

Supported Languages

Full version can translate FROM English, Japanese, Chinese, and Korean INTO 70 target languages. The Full build now includes 71 language options:

* Full version includes all 71 language options. Demo keeps the original demo language set. Translation quality can depend on the selected model/provider.

* Built-in offline quality can vary for rare languages. For best results, use Ollama, OpenRouter, or Custom Local API.

* OCR compatibility note: OCR quality depends on source text style, font, resolution, background, and capture region. Korean target translation works normally, but Korean source OCR may vary more than some other OCR languages. Please use the free demo to test your specific setup before buying.

Choose Your Version

Free Demo

Free

Test all features before you buy.

Core Demo Languages
Core Translation (30/day)
Realtime OCR + Translation Window
Works Offline with Local Models
Basic Customization
Lens Mode
Manga & Artistic OCR
Advanced OCR Controls
Presets & Keyboard Shortcuts
Ollama Integration

Download Demo

RECOMMENDED

Full Version

$1.99

One-time purchase. Lifetime updates.

All 71 Language Options
Unlimited Translations
Full Realtime + Snapshot Workflow
Game Lens, Lens Mode & Manga / Artistic OCR
Advanced OCR Controls
OCR Preprocessing Profiles and Custom Color Presets
Presets & Keyboard Shortcuts
Minimal Mode (Hide Background)
Low CPU Mode & Auto-Pause
Ollama Integration (Optional)
OpenAI-compatible Local API (Optional)
OpenRouter Cloud Translation (Optional)
Audio Translation BETA with OpenRouter Speech-to-Text
Game Lens visibility controls & improved shortcut editor

Buy Now on Itch.io Buy directly without opening the product page

Help & Troubleshooting

The most useful support answers are now on the site instead of being buried only on the forum. Start here before posting.

Support hub

Help Center

Start with the main troubleshooting hub covering startup issues, Local API setup, OpenRouter setup, scaling, GPU compatibility, and diagnostics.

Open help hub

Cloud setup

OpenRouter Guide

Set up your API key, choose a model, and troubleshoot cloud mode when authentication fails.

Read guide

Local API

OpenAI-Compatible Local API

Connect llama.cpp, LM Studio, or another local OpenAI-compatible server to Thaluna.

Read guide

Model quality

Best Translation Models

Choose OpenRouter, Ollama, KoboldCpp, llama.cpp, LM Studio, or built-in offline models.

Read guide

Windows scaling

100% Display Scaling & DPI Fix

Understand why capture paths behave differently at 125% or 150% scaling and what changed with the new experimental DPI fix.

Read guide

Diagnostics

Diagnostic Build

Use the console build for crash reports, OCR issues, and startup failures, then attach the full output.

Read guide

Still need help? Visit the Community Forum.