AI Caption Generator
AI Caption Generator for Reels, Shorts & TikTok
Turn any video into scroll-stopping captioned content in under a minute. CreatorX AI transcribes your audio with industry-leading accuracy, then styles every word with 100+ preset caption designs — the same looks used by top creators on Instagram, YouTube and TikTok.
Key features
100+ caption styles
Hormozi, MrBeast, Beast Games, karaoke, glitch, kinetic, minimal, bold, subtitle-style and dozens more — one click to apply.
Per-word timing
Every word is placed on the timeline with millisecond precision. Edit, split, merge or retime words in the built-in Word Editor.
Platform-safe layouts
Built-in safe-area overlays for Reels, Shorts and TikTok so captions stay visible above every UI element.
SRT, VTT, TXT export
Export subtitle files for YouTube, Vimeo, Premiere Pro, DaVinci Resolve, CapCut or any editor. No lock-in.
60+ languages
Automatic detection and transcription in English, Hindi, Spanish, Portuguese, French, German, Japanese and more.
Animations & effects
Fade, pop, bounce, typewriter, wave, glitch and 50+ animation presets with duration, delay and easing controls.
Why creators use CreatorX AI for captions
Short-form video lives or dies by captions. Studies from Meta and TikTok show that 85% of social video is watched on mute, and content with captions holds attention 40% longer. But manually captioning a Reel in Premiere or CapCut takes 20–60 minutes per minute of footage — time you don't have when you're shipping daily content.
CreatorX AI compresses that entire workflow into three steps: upload, pick a style, export. Our AI caption generator uses a fine-tuned speech recognition model trained on creator-specific audio (fast talking, background music, ambient noise, mixed languages) so it handles real-world video far better than generic transcription tools.
Every caption is fully editable. Change the wording, retime a word, split a line, or apply a different style to a specific phrase for emphasis — all in a three-panel editor built to feel familiar if you've used Premiere Pro or After Effects.
Built for every platform
Instagram Reels caption generator: Vertical 9:16 canvas with safe-area guides for the caption bar, hashtag row and profile icon. Preset styles matched to Instagram's visual language.
YouTube Shorts caption generator: Optimized bottom-third placement that clears the Shorts UI on both iOS and Android. Optional YouTube-style closed-caption rendering for accessibility.
TikTok caption generator: High-energy animated presets — pop, kinetic, karaoke — that match TikTok's fast-cut editing aesthetic. Automatic emoji-safe rendering.
Long-form YouTube: Traditional broadcast-style subtitles with two-line wrapping, reading-speed control (CPS) and burnable SRT export for uploading directly to YouTube Studio.
How it works
1. Upload your video — Drag and drop up to 500 MB. We accept MP4, MOV, WebM and audio-only files.
2. Auto-transcribe — Our AI transcribes and time-codes every word in about 30 seconds per minute of video.
3. Pick a style — Browse the styles panel: filter by platform, favorite the ones you love, and preview live before applying.
4. Refine — Use the Word Editor to fix any word, retime, or split lines. Add animations from the Animations tab.
5. Export — Download SRT, VTT or TXT. The timed caption data plugs into any editor.
Frequently asked questions
What is an AI caption generator?
An AI caption generator uses speech-to-text and language models to automatically transcribe your video and create synchronized on-screen captions. CreatorX AI adds styling, animation and per-word timing so captions look like they were designed in a pro editor.
Which video formats are supported?
MP4, MOV, WebM and most common video containers up to 500 MB per upload. Audio-only files (MP3, WAV, M4A) are supported for podcast captioning.
Does it support Reels, Shorts and TikTok?
Yes. CreatorX AI has platform-specific safe-area overlays for Instagram Reels, YouTube Shorts and TikTok so captions never get covered by the like button, hashtags or the profile handle.
Can I export SRT and VTT files?
Yes. Export SRT, VTT and plain TXT for use in any editor, plus burn-in-ready timing data. Perfect for repurposing content across platforms.
Which languages are supported?
60+ languages including English, Hindi, Spanish, Portuguese, French, German, Japanese, Korean, Arabic and Indonesian, with automatic language detection.
How accurate are the captions?
Typical accuracy is 95%+ for clear studio audio and 88–92% for phone-recorded voice. Every word is editable in the Word Editor for perfect results.
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