Subtitles that move with every word.
A Windows desktop app for generating, editing, and styling AI subtitles locally. No uploads, no accounts, no cloud.
Early access: $29 one-time · No subscription
Five subtitle styles. Built for real exports.
Start with a subtitle style, make it yours, then save it as a preset for future projects.
Vix Motion
Full-line karaoke captions with active-word pop.
Highlight Box
A dark readability box with word-level highlight.
Word Focus
One word at a time for maximum emphasis.
Viral
Bold social captions with a heavy outline.
Minimal
Clean, quiet subtitles for polished videos.
How it works
From raw footage to styled subtitles in four steps.
Drop your video
Import MP4, MOV, WEBM, or MKV.
Transcribe locally
Start transcribing as soon as the local AI engine is ready.
Style the subtitles
Pick a template, set text case (Original, UPPERCASE, or lowercase), and save a reusable preset.
Export video
Burn subtitles into MP4 or MOV with quality presets.
Your footage stays on your machine.
SubVix is built for creators and teams who don't want to upload raw footage to another web app. Transcribe, edit, and export locally.
No cloud upload
Your video files never leave your machine.
No accounts required
Download and use immediately. No sign-up.
No API keys
All AI processing runs locally via faster-whisper.
Local desktop workflow
A Windows desktop app built for local subtitle work.

Export videos ready to publish.
Choose the output format and quality preset that fits your workflow.
Output Formats
MP4
H.264 codec, widely compatible
MOV
Burned-in subtitle video export
Quality Presets
Maximum Quality
Best for final delivery
High Quality
Balanced file size
Fast Export
Quick turnaround
Pay once. Edit locally. No subscription.
Most AI caption tools charge monthly. SubVix is a one-time Windows desktop app for local subtitle generation and burn-in export.
One-time payment · Lifetime license
Secure checkout via Lemon Squeezy · 14-day refund
Lifetime license for the purchased app. Early Access updates are included during Early Access.
Included
- Windows desktop installer
- Local AI model included
- Works offline after install
- No cloud upload, account, or API key
- 5 subtitle templates
- Save and reuse custom subtitle style presets
- Global text case: Original, UPPERCASE, lowercase
- Editable subtitles, timing controls, and SRT export
- MP4/MOV burn-in export
Product demo
Watch SubVix import a video, generate subtitles locally, edit captions, apply a visual style, and export MP4/MOV with burned-in subtitles.
Explore SubVix Subtitle Workflows
Choose a practical guide for offline subtitle generation, long-form video, short-form content, language teaching, client delivery, or comparing desktop and browser-based tools.
Generate AI Subtitles Offline on Windows
Follow the complete local workflow from importing a video and generating an AI draft to reviewing subtitles and exporting the result.
AI Subtitles for YouTube and Long-Form Video
Prepare, edit, and export subtitles or SRT files for YouTube videos, courses, webinars, and other long-form content.
Burned-In Subtitles for TikTok, Reels, and Shorts
Create readable, styled subtitles that remain visible inside exported short-form MP4 or MOV videos.
Offline vs Online Subtitle Generators
Compare local Windows and browser-based subtitle workflows across uploads, internet dependence, convenience, and cost.
Subtitles for Language Teaching Videos
Create, review, and export subtitles for lesson and tutoring videos with editable text, timing, and reusable subtitle styles.
Subtitles for Client Videos
Create and review client-video subtitles locally on Windows, then deliver an SRT file or burned-in MP4/MOV video.
Questions before you export?
Everything you need to know about SubVix, local AI subtitles, offline use, privacy, pricing, and burned-in video exports.
Ready to subtitle your next video locally?
Buy SubVix for Windows and turn raw clips into styled, export-ready videos.