What is the rainbow caption effect?
The rainbow effect fills your caption text with an animated gradient spanning the entire visible color spectrum: red, orange, yellow, green, cyan, blue, violet — continuously cycling. The gradient doesn't just sit still; it flows and shifts over time, giving your captions a kinetic, energetic quality that pulls the eye.
AuraCaptions renders the rainbow animation frame by frame and composites it directly into your video using FFmpeg. There's no CSS, no JavaScript overlay — it's literally in the pixels of the video file.
Who uses rainbow captions?
🎉 Celebrations
Birthday videos, graduations, announcements — rainbow energy is pure joy.
🏳️🌈 Pride Content
The natural choice for Pride events, affirmations, and LGBTQ+ community content.
👧 Kids Content
Bright, colorful, cheerful — perfect for children's educational and entertainment videos.
💪 Motivation
Uplifting quotes and motivational clips pop with rainbow captions. Energy matches energy.
Frequently asked questions
Is the rainbow caption effect free?
Yes. AuraCaptions is free with 300 seconds of video processing. No watermark, no credit card required.
Does it work for vertical video (TikTok/Reels)?
Yes. AuraCaptions renders at your video's native resolution — portrait, landscape, or square all work perfectly.
Are the captions timed to my speech?
Yes. AuraCaptions uses Deepgram for transcription with word-level timing, so captions appear exactly when each word is spoken.