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AI Subtitle Generator

Generate accurate subtitles from any video — Whisper AI runs entirely in your browser. No upload, no API key.

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Drop your video here

MP4, WebM, MOV, AVI · click to browse

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100% Private

Video never leaves your device

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Whisper AI

Same model powering ChatGPT voice

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99+ Languages

Auto-detect or choose your language

Your files never leave your device. All processing happens locally in your browser — nothing is uploaded to our servers.Files are never stored on our servers · No tracking of your file contentsPrivacy Policy

What is AI Subtitle Generator?

The AI Subtitle Generator automatically transcribes spoken audio from any video file and produces timestamped subtitles. It runs entirely inside your browser using the Whisper AI model — no video is ever uploaded to any server.

How It Works

Upload a video file (MP4, WebM, MOV, MKV, AVI). The browser extracts the audio track, then feeds it through the Whisper speech-to-text model (running locally via WebAssembly). The model generates a transcript with precise timestamps, grouped into subtitle blocks. Download the result as an SRT or VTT file.

How to Use

  1. 1

    Upload your video

    Drop a video file onto the upload area or click to browse. Any browser-supported format works.

  2. 2

    Select language

    Choose the spoken language, or leave on Auto-detect. Selecting the correct language improves accuracy.

  3. 3

    Generate subtitles

    Click Generate. The Whisper AI model transcribes the audio with timestamps — runs entirely in your browser.

  4. 4

    Review and edit

    Read through the subtitle blocks. Click any line to correct errors before downloading.

  5. 5

    Download SRT or VTT

    Download the subtitle file and import it into your video player, editor, or YouTube.

Key Benefits

  • 100% private — video never leaves your device
  • Powered by OpenAI Whisper running in-browser (no paid API)
  • Supports 99+ languages with auto-detection
  • Download as SRT or VTT — compatible with all video players and editors
  • Edit subtitles before downloading
  • Supports MP4, WebM, MOV, MKV, AVI, and more

Frequently Asked Questions

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No Upload Required

All processing happens directly in your browser. Your documents are never sent to any server — complete privacy guaranteed for users in the USA, Canada, UK, and worldwide.

Free to Use — Pro Plans Available

Every tool on iLoveDocsTools is free to use. Need more? Upgrade to Pro for unlimited usage, priority access, and no daily limits. Trusted by students, freelancers, and teams across North America and Europe.

Works on Any Device

Whether you are on a Mac, Windows PC, iPhone, or Android in New York, Toronto, London, or Sydney — our tools work instantly in any modern browser.

Looking for free PDF tools in the USA? Free document converters in Canada? Online PDF editors in the UK or Australia? iLoveDocsTools offers 70+ free tools — merge PDF, split PDF, compress PDF, convert Word to PDF, Excel to PDF, JPG to PDF, and many more — all free, all instant, all private. No watermarks. No file size limits. Just free tools that work.