Every word, captured. Automatically.
Captions that keep up with you.
Native macOS app for fast, precise auto-captions. Import, transcribe, style, and export without leaving your Mac.
Early access: an exclusive launch coupon and lifetime updates.
From raw video to branded captions
in four steps.
A single, focused flow. No web upload, no external editor, no waiting in a queue.
- STEP 01Library
Import
Drag local .mp4, .mov, or .mkv files into a project library that stays organized.
- STEP 02Auto
Transcribe
Deepgram converts speech to timed words. Choose a single language or multi-language mode.
- STEP 03Editor
Style
Match captions to your brand: typography, size, colors, and on-screen placement.
- STEP 041080p · MP4
Export
Render videos with captions burned in, ready to upload anywhere.
Built for creators who need fast caption output and precise visual control.
Every capability is shipped as a focused feature. No bloat, no menus you’ll never open.
Fast video import
Add local video files from your Mac into a central library, with no upload and no compression.
Automatic transcription
Deepgram converts spoken audio into timed words with high accuracy across accents.
Language selection
Process videos in a chosen language, or run multi-language mode for mixed sources.
Editable styling
Customize typography, size, color, and placement so captions feel on-brand.
Live preview
Review captions against the video before exporting. No surprises in the final cut.
Smart chunking
Caption lines are grouped with timing-aware logic, so they read naturally on screen.
Project organization
Keep videos in a reusable library with quick open, rename, and delete actions.
License-gated export
Unlock export with Kaptionly license activation and device-based validation.
A captioning tool that respects your workflow and your machine.
Kaptionly is opinionated about three things: it should be fast, feel like a Mac app, and never get in the way of the person shipping the video.
Native performance
Built for Apple Silicon. Renders and transcribes locally, with no browser tax.
Stays on your Mac
Your library never leaves your device. Only audio is sent for transcription.
Device-bound license
License activation is tied to your machine, with progress tracked per project.
Quick answers.
Does Kaptionly require an internet connection?+
Yes. Audio is sent to Deepgram for transcription. The rest of the editor (import, styling, preview, export) runs locally on your Mac.
Which video formats are supported?+
Common formats including .mp4, .mov, and .mkv. Files stay on your machine in a project library you control.
Can I export captions burned into the video?+
Yes. Final renders include captions embedded directly into the video output.
Is there multi-language support?+
You can pick a single transcription language per project, or use multi-language mode for mixed sources.
How is licensing handled?+
Export is gated by a device-bound license activation. Your library and projects work without one. Only the final export step requires activation.
What macOS version do I need?+
macOS 14 or later, on Apple Silicon or Intel.
How do I reach you?+
Questions and feedback go through X. Open Contact in the header or use https://x.com/lotfi_hadjsadok.
Captions that keep up with you.
Stop pasting transcripts into a third-party styler. Import, transcribe, style, and export all from one Mac app.
Join the waitlist for an exclusive launch coupon and lifetime updates.