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Article to Video
Turn articles into MP4
Script to Voiceover
Turn text into AI audio
Transcript to Help Article
Clean docs from transcripts
Video Trimmer
Cut and trim video clips
Subtitle Creator
Generate captions from audio
Transcript Extractor
Get text from any video
Video Watermark
Add logo or text overlay
Video Cropper
Resize and crop frames
AI Video Reframer
Auto crop with subject tracking
Video to FAQ
Turn video into Q&A
Video to Help Article
Auto-generate help docs
Video to Quiz
Generate quizzes from videos
Subtitle Translator
Translate captions instantly
Background Music
Add royalty-free tracks
Thumbnail Generator
Create click-worthy thumbs
Description Generator
SEO-optimized descriptions
AI Video Trimmer
Smart cuts, auto highlights
Video Merger
Combine multiple clips
Before & After Video
Side-by-side comparisons
Coming Next Video
PiP teaser into next clip
Video Rotator
Flip or rotate footage
Speed Changer
Speed up or slow down
Format Converter
Convert between formats
Video to GIF
Turn clips into animated GIFs
Video Fade In/Out
Smooth intro and outro
Video Summary
AI-powered key takeaways
Video FAQ Generator
Extract FAQs from video
Image Annotator
Mark up screenshots
Video Annotator
Shapes, arrows & text on video
Audio Extractor
Extract audio from video
Subtitle Burner
Burn captions into video
PDF to Video
Convert PDF to video
PPTX to Video
Turn slides into video
Keynote to Video
Convert Keynote to video
Presentation to Video
PDF, PPTX, or Keynote
Google Slides to Video
Turn Google Slides into video
PowerPoint to Video
Convert PPT to video
Video Lighting
Brightness, contrast & more
Free Online Video Annotator
Add shapes, arrows, text, and blur to any video. Position them on a timeline and download the result.
Drop your video here
or click to browse
How It Works
Three simple steps
Upload your video
Drop a video file or paste a URL. Supports MP4, MOV, and WebM.
Add annotations
Place rectangles, circles, arrows, text, or blur effects on the video. Set start and end times for each.
Export & download
Hit Run and we burn the annotations into the video. Download the finished MP4.
Upload your video
Drop a video file or paste a URL. Supports MP4, MOV, and WebM.
Add annotations
Place rectangles, circles, arrows, text, or blur effects on the video. Set start and end times for each.
Export & download
Hit Run and we burn the annotations into the video. Download the finished MP4.
Why Use This Tool
Five annotation types
Rectangles, circles, arrows, text overlays, and blur masks — everything you need to highlight or redact.
Timeline control
Set start and end times so annotations appear exactly when you need them.
WYSIWYG preview
Drag, resize, and style annotations directly on the video preview before exporting.
Frequently Asked Questions
MP4, MOV, and WebM files up to 500 MB.
Yes. You can try the tool without an account. Sign in to save your results.
Absolutely. Add as many annotations as you need — each with its own timing, position, and style.
It applies a frosted-glass blur to a region of the video — useful for hiding sensitive information like faces, emails, or phone numbers.
Yes. We use the same rendering engine for preview and export, so what you see is what you get.
Need more from your videos?
Vidocu turns videos into subtitles, voiceover, translations, and help articles — automatically.