Add colorful, styled captions to your YouTube Shorts, TikToks, and Reels. Auto-transcribe speech and customize fonts. Free, no watermark.
Add professional, colorful captions to your YouTube Shorts, TikTok videos, and Instagram Reels completely free. Our AI-powered tool auto-transcribes speech directly from your video's audio track and lets you customize the font, colors, size, and animation style. The captions are burned directly into your video so they display on every platform without relying on auto-captions.
Upload your short video (under 60 seconds), click Auto Transcribe to detect speech using OpenAI's Whisper AI model running in your browser, edit the transcript if needed, choose a caption style, and export as MP4 or WebM. The entire process happens locally in your browser — your video is never uploaded to any server, keeping your content completely private.
Choose from 6 pre-designed caption styles including Classic, Bold Gold, Neon, Highlight, Outline, and Gradient. Customize every detail: pick from 10 professional fonts, set text and highlight colors, adjust background opacity, choose top/center/bottom positioning, and select word-by-word highlighting or pop-in animations. Your captions will look as polished as any paid tool like CapCut or Premiere Pro.
85% of social media videos are watched without sound. Burned-in captions ensure your message reaches every viewer. Videos with captions get 40% more views and significantly higher watch time. Unlike platform auto-captions, burned-in captions use your chosen font, colors, and style — making your content stand out in crowded feeds.
Export your captioned video in MP4 (most compatible) or WebM format. Choose from high, medium, or low quality settings. Select your output resolution: original, 1080p, 720p, or 480p. Pick 24, 30, or 60 FPS. Audio from your original video is preserved in the export.
Yes, completely free with no watermarks, no sign-up required, and no usage limits. All processing happens in your browser.
We use OpenAI's Whisper AI model running directly in your browser via WebAssembly. It extracts audio from your video file and transcribes speech with word-level timestamps. The AI model downloads once (~50MB) and is cached for future use. Your video never leaves your device.
Yes. After transcription, the text appears in an editable transcript box. You can fix typos, change wording, or paste your own transcript. Changes update the video preview in real-time. You can also paste a transcript manually without using auto-transcription.
You can upload MP4, MOV, and WebM videos up to 60 seconds long and 200MB in size. Export is available in MP4 (most compatible with all platforms) and WebM formats with customizable quality and resolution.
Yes. ClearUtil's Shorts Caption Generator offers many of the same caption features as CapCut Pro — auto-transcription, styled captions, word-by-word highlighting, and multiple export options — but completely free with no watermark and no subscription required. It runs entirely in your browser with no app to install.