Free Instagram Reels Caption Generator
Turn any video into an Instagram Reel with auto-generated captions. Upload, add captions, export — done in minutes.
Upload your Reel footage
Drop any vertical video file into CutSnap. Supports MP4, MOV, and WebM. The AI transcription starts immediately after upload.
AI adds captions with word-level precision
Every word is timestamped individually. CutSnap syncs your captions perfectly to the spoken audio — no manual timing adjustments needed.
Export as MP4 ready for Instagram
Choose a caption style, fix any errors in one click, and export. Your Reel is ready to upload to Instagram with captions burned in.
Auto-transcribed captions
CutSnap transcribes your Reel audio with high accuracy so every word appears at exactly the right moment on screen.
Custom caption styles
Pick fonts, colours, and text size that match your Instagram aesthetic. Style your captions to fit your brand without any design experience.
Export-ready MP4
Download your Reel as a clean MP4 with captions burned in — no watermark, ready to upload directly to Instagram.
How do I add captions to Instagram Reels?
Upload your video to CutSnap, let AI generate captions automatically, style them to match your Instagram aesthetic, and export the MP4. Upload the exported file directly to Instagram — captions are burned in and show for all viewers.
Does CutSnap support vertical video for Reels?
Yes. CutSnap preserves your source video's aspect ratio. Upload a vertical 9:16 video and the exported Reel maintains that format, ready for Instagram's Reels feed.
Can I customize the caption style for my brand?
Yes. CutSnap gives you full control over font, colour, size, background, and position. You can save your style as a profile and apply it to every future Reel in one click.