Add animated, burned-in captions and subtitles to any video — Hormozi, MrBeast, or karaoke styles. Built for creators posting to TikTok, Instagram Reels, YouTube Shorts, and LinkedIn. 100% in your browser. Your video never uploads.
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Roughly 85% of social video is watched on mute (Digiday). Studies from Verizon and Publicis put it even higher — 80% of consumers are more likely to finish a video when captions are on. If you don't add captions to video before posting, most viewers will scroll past in the first second. Animated, word-by-word subtitles are the fix — and they are why creators like Alex Hormozi, MrBeast, and Iman Gadzhi all use them.
An auto caption generator turns the audio in your video into styled, timed captions and subtitles, then burns them directly into the output. That means the captions show up everywhere your video plays:
Unlike platform-generated subtitles that turn off when the viewer disables them, burned-in captions are part of the video itself. They never get switched off, never get out of sync, and never lose their style. The same MP4 works on every platform without uploading separate subtitle files.
Most auto subtitle generators upload your raw video to their servers to transcribe it — slow, paid by the minute, and a privacy problem for anything sensitive. We took the opposite approach and built a browser-native subtitle burner instead. The OpenAI Whisper speech model runs locally in your browser tab, the captions are styled and burned right there, and the only thing that ever leaves your device is the finished captioned video — and only if you choose to share it via a free Kommodo link.
That means three concrete wins:
Drop your MP4, MOV, or WebM file. Up to 2 GB and 90 minutes.
A Whisper speech model transcribes your audio on-device with word-level timestamps.
Choose Hormozi, MrBeast, pill, or karaoke. Set highlight color and position.
Sign up free to save your captioned video. Get a shareable Kommodo link for TikTok, Reels, Slack, anywhere.
Word-by-word highlights, smooth animation, and a styled look viewers actually stop scrolling for.
Built-in presets that match the bold, all-caps creator styles from short-form video. One click, no design work.
The standard TikTok and Reels look — each word lights up as it is spoken to keep viewers locked in.
Powered by OpenAI Whisper — the same speech recognition model used by professional transcription services. Plus every word is editable before you burn captions in.
Auto-detect the spoken language or pick one. Handles English, Spanish, French, Hindi, Arabic, Japanese, and many more. Translate non-English speech to English subtitles in one step.
Free to caption, free to share via Kommodo link, no branding on your video. Sign up free when you are ready to share.
Short-form creators: TikTok, Reels, and YouTube Shorts retention is built on captions. Hormozi and MrBeast styles are standard for a reason — they hold attention on muted scroll.
Course creators and educators: Lessons stay accessible and watchable for students who learn better with text. Burned-in captions also keep your videos compliant in LMS environments that strip subtitle tracks.
Marketers and sales teams: Demo clips, social ads, and walkthroughs all need captions to perform on muted feeds. Animated captions outperform static text.
Podcasters repurposing episodes: Turn audio episodes into clipped short-form video with karaoke-style captions in minutes. Posting one captioned 30-second clip per episode is a proven format for growing a podcast audience on TikTok, Reels, and Shorts.
E-commerce and product video: Add subtitles to video product demos, unboxings, and review clips so the features land even on muted scroll. Captioned product video consistently outperforms uncaptioned video on conversion.
Coaches and consultants: Repurpose long-form advice from a Loom or webinar into bite-size captioned reels. The Hormozi preset is built for this — bold, all-caps, hooks viewers immediately.
Agencies and content teams: Caption a week of client content in an afternoon — privately, without uploading client footage to a third-party server.
Accessibility-first teams: Captions make video usable for deaf and hard-of-hearing viewers, ESL audiences, and anyone in a noisy or quiet environment.
Record your screen with webcam and audio directly in browser.
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