Translate, clip, and subtitle your videos
— with AI.
AI translation · viral clip finder · one-click publish to YouTube, TikTok, Instagram, and more — accurate subtitles in 50+ languages, ready in minutes.
No credit card required · Free plan includes 10 min/month
Trusted by creators on
Three ways to go multilingual
Pick the workflow that fits your content. Switch between them any time.
Upload a video. Get subtitles.
- 1Drop a file or paste a YouTube URL
- 2AI transcribes and segments your video with precision timing
- 3Each segment is translated by a frontier model
- 4Edit in the live subtitle editor. Export .srt or burn into the video.
Search YouTube. Translate in one click.
- 1Search any topic in the Discover tab
- 2Browse results — thumbnails, duration, channel
- 3Click Translate → on any card
- 4The video loads into the Translator, ready to process.
Find the viral moment in any long video.
- 1Upload a long video or paste a YouTube URL
- 2AI scores every segment for viral potential
- 3Pick from the top 3 clip suggestions (scored 1–10 with a hook and reason)
- 4One click extracts, subtitles, and syncs the clip — ready to export.
See SubSync AI end-to-end in 90 seconds.
Watch a real video go from raw footage to translated, styled, and ready-to-publish — so you know exactly what to expect before you start your free trial.
Demo video · 1 min 30 sec
Upload → Translate → Style → Publish
Drop a clip
Upload an MP4 or paste a YouTube URL. Source language is detected automatically.
Pick a language
Choose from 50+ targets. Watch the AI translate each segment with timing intact.
Export & publish
Tweak styling, burn subtitles into the video, and open YouTube or TikTok in one click.
Your long video. AI finds the best 60 seconds.
Upload any long video — podcast, lecture, vlog, interview. SubSync analyses the full transcript and surfaces the top 3 clips scored by hook strength, emotional peak, and standalone value. Each suggestion shows a timestamp range, duration, viral score (1–10), a one-line hook, and the reason it would perform.
- AI scores every segment for TikTok / Reels / Shorts potential
- Top 3 clips ranked with hook, reason, and viral score
- One click extracts the clip and adds synced subtitles
- Works on uploaded files and YouTube URLs
“The one mistake every creator makes in their first year”
Strong hook + emotional payoff. Standalone punchline at 12:42.
“Why I almost quit before things took off”
Vulnerable opener, satisfying turn. Good for Reels.
“The 3-step framework I use for every video”
List format, easy to subtitle. Strong watch-through signal.
Review accuracy while the video plays.
The subtitle editor scrolls automatically to the active segment as the video plays, outlining it in blue. Scrub to any point in the video — the right panel follows instantly. Edit text or timing inline without pausing.
- Auto-scroll to current segment
- Active block highlighted in real time
- Edit text and timing inline
- Changes preview immediately on the video overlay
Live translated subtitles on any YouTube video.
Install the extension, click translate on any YouTube video, and see subtitles in your language overlaid in real time — no video re-upload, no waiting for a batch job. Previously translated videos load from cache instantly.
- Works on any YouTube video
- Supports 50+ target languages
- LRU cache — revisited videos load instantly
- No re-upload or cloud processing
Everything you need to go multilingual
Viral clip finder
AI reads the full transcript and scores every segment for viral potential. Get the top 3 clips with hook text, reasons, and a 1–10 score — extract and subtitle in one click.
Discover & search
Search YouTube directly from the app. Click Translate or Find Clip on any result — no copy-pasting URLs.
Frontier translation
Powered by frontier AI models that preserve tone, idioms, and context — not word-for-word machine translation.
50+ languages
Translate into Spanish, French, Portuguese, Hindi, Japanese, Vietnamese, Arabic, and 43 more. Source language is auto-detected.
Subtitle style editor
Customize font family, size, color, background opacity, position, bold, and outline — all in real time.
Burn & publish
Burn subtitles into your video with ffmpeg, then publish to YouTube, TikTok, Instagram, Facebook, or X in one click.
Simple pricing. Cancel any time.
All plans include a 7-day free trial. No credit card required to start.
Free
Try it out, no commitment.
Get started- 10 minutes / month
- 1 target language
- .srt download (watermarked)
- Community support
Pro
Best quality. Fastest results.
Start free trial- 500 minutes / month
- High-quality model (Opus)
- Short Builder + Discover tab
- Priority processing queue
- Chrome extension included
- Subtitle style customization
- Priority email support
Agency
For teams managing multiple creators.
Contact us- 2,000 minutes / month
- 5 team seats
- API access + CLI batch mode
- White-label .srt (custom filename)
- Dedicated support SLA
Creators are going multilingual.
"I went from making one video a week to five — in English AND Spanish. SubSync does the translation while I'm editing the next video."
"The live sync editor is the feature that sold me. I can watch my video and see exactly which subtitle is playing. Errors are obvious instantly."
"We translate 20 client videos a week. The CLI batch mode and Agency plan paid for itself in the first week."
Frequently asked questions
Your audience is already there. Meet them in their language.
Translate full videos or find the perfect clip — 10 free minutes to start, no credit card.
Already have an account? Log in