Free AI Automatic Subtitle Translator & Hardcode Video Burn-In Engine
Generate and burn-in premium cinema-grade subtitles for your videos in just a few clicks without installing any complex third-party apps. The online video subtitle translation toolkit from **itkb.app** allows you to extract audio and seamlessly transcribe/translate your speech using advanced **Google Gemini API** layers. Once processed, you can export raw files or easily execute our **Hardcode/Burn-in Subtitles** feature which directly renders beautiful styled text onto your video frames using Web HTML5 Canvas. Perfect for creators posting content on Shopee, TikTok, Instagram Reels, and YouTube Shorts.
⚡ High-Speed Local Audio Extraction Engine
Avoid the sluggish lag of uploading huge video files to external cloud servers. Our local pre-processing script parses audio waves inside your browser sandbox, sending only highly compressed vocal nodes to the AI node. This cuts processing time and data usage by up to 95%.
💾 Multi-Format Exports (.SRT, .VTT, .MP4)
Enjoy total workspace flexibility. Choose to export only the raw formatted SubRip (.srt) and WebVTT (.vtt) timelines, or click the video rendering button to merge the visual subtitle layer directly into the raw video container (Hardcoded Burn-In MP4) for immediate uploads.
🔒 100% Sandbox Isolation and Complete Privacy
Your video content and personal files are never uploaded to our servers. All rendering tasks, canvas overlay calculations, and raw file merging are processed inside your device's browser memory workspace. The data securely passes directly to Google Gemini via your personal token.
How to Transcribe, Translate, and Hardcode Subtitles (3 Simple Steps)
Upload Video & Select Style
Drag and drop your local video file into the browser preview box. Input your personal free Gemini API key and choose the designated subtitle voice tone (e.g., formal or casual translation style).
Initiate AI & Preview
Click the generate button to process the audio stream. The AI will listen, detect the context, and return time-aligned translations. You can instantly preview how they look in real-time in our interactive player.
Export Files or Hardcode Video
Download your raw subtitle files, or click 'Download Hardcoded Video' to let the web rendering compiler draw responsive, automatically wrapped subtitles directly onto your video frames.
Frequently Asked Questions (FAQ) - ITKB AI Video Subtitle Translator
Q: How do I generate a free Gemini API Key for this tool?
You can log in with any standard Google or Gmail account at Google AI Studio. Click the "Get API Key" button to generate your private token. The service is free under generous developer sandbox quotas for personal use.
Q: Will burned-in subtitles overflow beyond my video frame boundaries?
No, the text will wrap automatically. The ITKB canvas compiler uses a responsive layout monitor (Dynamic Word Wrapper). This monitor measures the intrinsic dimensions of the video file in real-time. If the cumulative width of a subtitle string exceeds 80% of the active video frame, it splits and wraps the words, ensuring perfect presentation on both horizontal and portrait (vertical) layouts.
Q: Why is this powerful video translator tool completely free and ad-free?
Because ITKB uses an optimized **Serverless Client-Side Architecture**. By delegating audio parsing and video compilation directly to your device's browser engine and utilizing your personal API token to communicate with Google, we incur virtually zero host server costs. This allows us to keep this service completely free, secure, and entirely ad-free.