InstantSubtitles
Stays on your PC
Transcription runs locally with whisper.cpp. Your source files are not uploaded for AI processing.
Local-first · Windows · one-time license
Professional subtitles without sending your video to the cloud.
Open any clip, transcribe with Whisper on your CPU or GPU, fine-tune cues on a timeline, style fonts and placement, then export soft subtitles or a burn-in master for YouTube, TikTok, and clients.
Download for Windows Buy license — $12.99
Try Generate free
CUDA & Vulkan GPU
No subscription
FFmpeg export
Trial: unlimited Generate · Export trial 10× hard burn-in (max 0:30) · PayPal · up to 2 PCs · Help
Why creators switch
Everything in one desktop workflow
Built for editors who care about privacy, codec control, and predictable cost — not another monthly caption SaaS tab.
GPU when you have it
Install CUDA or Vulkan acceleration from the app. Large-v3 on an RTX-class GPU turns hour-long interviews into minutes.
Real export pipeline
Soft subs, hard burn-in, or SRT — social presets, codec tuning, and audio settings via FFmpeg.
Dual language
Primary and secondary tracks, multi-language input detection, and English translate output when you need it.
Timeline + preview
Drag cues, split and merge, preview burned styles on the video, and resize subtitles directly in the player.
Pay once
$12.99 unlocks full Export (soft, burn-in, SRT). Generate is free in trial. Free updates on the 0.x line.
Workflow
From import to upload-ready in four steps
- Import video Drag MP4, MOV, or HEVC into the window. Probe shows duration and codec at a glance.
- Pick a Whisper model Download Tiny through Large v3 inside the app. Choose speed vs accuracy presets.
- Generate & edit Auto cues land on the timeline. Fix text, timing, and dual-language lines in the sidebar.
- Export Soft track for platforms that accept sidecars, or burn-in with your font and margin for Reels and Shorts.
Editor
Timeline, cues, and live preview
A dedicated cues list, waveform-style timeline, and draggable on-video subtitles keep you in flow. Undo/redo, keyboard shortcuts, and project save mean you can return to a client cut days later.
- Word-level timing improvements after first pass
- Google Fonts with automatic download for burn-in
- Primary / secondary style tabs
Models & speed
Whisper models you control
Models live in Local App Data by default — away from OneDrive sync locks. Pick a download mirror if your region is slow, install GPU runtimes from the UI, and release file locks without digging in Task Manager.
Pricing
Simple, honest licensing
Full license
$12.99 USD
One-time via PayPal
- Unlimited Generate & Export
- 2 active computers
- 2 activations per calendar month
- 0.x updates via in-app check
Not ready to buy?
Install and try free: unlimited Generate on any length. Export trial is 10 hard burn-ins (max 0:30 each) — enough to check GPU speed and burn-in quality on a short clip.
FAQ
Common questions
Does my video get uploaded?
No. Transcription uses whisper.cpp on your machine. The app may contact instantsubtitles.cc only for optional update checks and license activation — see our Privacy Policy.
What do I need to run it?
Windows 10 or 11, WebView2 (usually preinstalled), and disk space for Whisper models (hundreds of MB to a few GB). An NVIDIA, AMD, or Intel GPU is optional but recommended for long files.
How is this different from CapCut auto captions?
InstantSubtitles is a dedicated subtitle pipeline: multi-language tracks, pro export codecs, client deliverables, and no dependency on a mobile editor. See comparison.
Refunds?
Contact nathan@petralian.com with your PayPal transaction ID. Refunds are handled manually per our Terms.
Ready when your next cut is
Download the Windows installer, try Generate on a short clip, and upgrade when you are ready to export.