AI SUBTITLES FOR CREATORS
Captions that work the way you want.
Local AI when privacy comes first. Cloud High Accuracy when precision matters most. One clean workflow to generate, edit and export captions without a watermark.
Free core
No watermark
No mandatory account
create captions
that feel native.
that feel native.
00:12 / 00:28
CAPTIONSDESIGNEXPORT
AI modelWhisper Small · LOCALRecommended
Style
Social CompatibleEXPORT →
KaptionoLOCALSUBTITLES
IN SECONDS.
IN SECONDS.
SIMPLE WORKFLOW
From video to captions in three steps.
No onboarding maze and no getting lost in dozens of tools. Kaptiono takes you straight to the work.
Choose a video
Open MP4, MOV or WebM directly from your device.
Generate captions
Use Local Whisper or optional Cloud High Accuracy.
Edit and export
Refine the text, style the captions and download the result.
ONE TOOL, TWO AI MODES
You choose where transcription happens.
LOCAL AI
Privacy-first by design.
Whisper runs locally in the browser. Your original video and audio stay on your device.
- Whisper Tiny, Base and Small
- No video upload
- Ideal for privacy-sensitive footage
CLOUD HIGH ACCURACY
When maximum accuracy matters.
In Cloud mode, only the audio required for transcription is sent. The original video never leaves your device.
- Whisper Large v3 Turbo
- Accuracy-first transcription
- Optional, never mandatory
CREATOR WORKFLOW
Everything captions need, without becoming a heavy video editor.
Caption editing
Refine text and timing inside the same workflow.
Design controls
Typography, position, colors, motion and rotation up to ±90°.
Live preview
See changes on the video before exporting.
SRT & transcript
Download subtitle files and a clean transcript.
Social export
Social Compatible mode for TikTok, Reels and Shorts.
PWA experience
App-like mobile and desktop experience with install and update flows.
PRIVACY BY DESIGN
Your original video stays yours.
Kaptiono is designed around a local-first default. When you choose Cloud High Accuracy, only the audio required for transcription is sent.
▶Your videoStays on device
LOCALWhisper on deviceVideo + audio local
CLOUDHigh AccuracyAudio only
APP-LIKE ON EVERY SCREEN
The same Kaptiono, from desktop to mobile.
A responsive editor, PWA install flow and mobile-first interaction without sacrificing the desktop experience.
✓ iPhone / iPad✓ Android✓ Windows✓ macOS
CAPTIONS
WITHOUT FRICTION.
WITHOUT FRICTION.
KaptionoLOCAL AI
FAQ
The essentials, without the fine print.
Does my video get uploaded to a server?
No. The original video stays on your device. In Local mode the audio stays local too. In Cloud High Accuracy, only the audio required for transcription is sent.
Is Kaptiono free?
The core Local workflow remains free and exports do not carry a watermark.
Do I need an account?
Not for the core workflow. You can open Kaptiono and start with a video without mandatory sign-up.
Does it work on mobile?
Yes. Kaptiono is designed for mobile and desktop, with a PWA install flow and dedicated attention to Safari/iPhone compatibility.
What can I export?
You can download SRT, transcript and video with burned-in captions. Social Compatible mode is available for better social-platform compatibility.
Which video formats are supported?
The core workflow supports MP4, MOV, M4V and WebM, with a compatibility fallback for difficult Safari audio cases.
READY TO START?
Open Kaptiono→