What is Neolli?

AI-powered video localization — transcription, translation, and dubbing in one place.

Neolli helps you localize your videos into multiple languages using AI. Upload a video (or connect your YouTube channel), and Neolli will transcribe the audio, translate captions into your target languages, and generate AI-dubbed audio that clones the original speaker’s voice.

New accounts receive 2,000 free credits to try Neolli — no payment required. Welcome credits expire after 7 days.

What you can do

• Transcribe — Convert spoken audio to timestamped captions in 10 supported languages
• Translate — Generate accurate, natural-sounding captions in 30 languages
• Dub — Create AI-voiced audio tracks that clone the original speaker in 10 languages
• Edit — Fine-tune captions with the built-in editor (split, merge, find & replace, keyboard shortcuts)
• Export — Download as SRT, MP3, WAV, or push directly to YouTube
• Collaborate — Share workspaces with your team

How it works

1. Upload your video

   Upload a video file (up to 3 GB) or paste a YouTube URL to import directly.

2. Transcribe

   Neolli transcribes the audio into source-language captions with speaker diarization and word-level timing.

3. Translate & Dub

   Select target languages — individually or using presets (Top 3, Top 5, Top 10). Neolli generates translated captions and optionally AI-dubbed audio.

4. Review & Export

   Edit captions in the built-in editor, then export SRT files, download dubbed audio, or push captions back to YouTube.

Explore the docs

Quickstart

Localize your first video in minutes.

Transcription

How AI transcription works.

Translation

Caption translation across 30 languages.

AI Dubbing

Voice-cloned audio in 10 languages.

Caption Editor

Full-featured editor with keyboard shortcuts.

YouTube Integration

Import videos and push captions to YouTube.