Your Text what should the subtitles say?

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Subtitles will be burned directly onto this video

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How it works

Type or paste the text you want as subtitles

Upload the background video

Your browser renders karaoke-style subtitles frame-by-frame onto the video

Download the result — no server, no upload, your data stays on your device

Desktop App

Need AI narration, music mixing, and bulk processing?

Subtitler Desktop adds 13 professional AI voices, background music with LUFS normalisation, chromakey compositing, and batch processing for up to 84 videos per run. One-time purchase.

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Built by NLI Media

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Rendering subtitles frame by frame — plays through once at normal speed

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Subtitles burned in, processed entirely in your browser. No data left your device.

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Subtitler Desktop

Everything this demo does, plus AI narration, music mixing, and bulk processing.

✓ 13 professional AI voices with edge-tts

✓ Background music mixing with LUFS normalisation

✓ Chromakey compositing over background videos

✓ Batch process 84 videos in one run

✓ Full font, colour, and position control

✓ One-time purchase — no subscription

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Subtitler Desktop