Free TikTok banner splitter that cuts one image into three profile tiles
A native macOS drawing app for quick sketches, screenshot markup, and AI-generated diagrams
Stage
Not given
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Founded
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Based in
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Pricing model
Free
Freemium
Pricing
Not given
Free: $0 forever, includes all drawing tools, unlimited sketches in one folder, copy to clipboard as PNG, and auto-save with local-first storage. Pro: coming soon.
Key features
Splits images into 3 numbered tiles with posting order
Preview tiles on TikTok profile layout before posting
Creates 3×3 grids for TikTok and Instagram
Carousel splitter for swipeable slides
Full-screen tiles option for 9:16 posts
Custom grid with any rows, columns and tile shape
Shows TikTok safe zones and label placement
Add text with font, size, position and color options
Supports HEIC, PNG, JPG and WebP formats
Download tiles as ZIP file or one by one
Instant copy-to-clipboard as PNG
No accounts or setup required
Local-first storage with auto-save
Screenshot annotation with arrows, boxes, text, and freehand tools
AI diagram generation via Claude, Cursor, Windsurf, and VS Code
Refine diagrams through chat
Paste screenshot from clipboard
Unlimited sketches in one folder
Native macOS performance
All drawing tools included in free version
What makes it different
No image upload: processing runs entirely in your browser
No sign-up, watermark, or limits on banner creation
Labels tiles with correct posting order for TikTok
Works on phone and desktop with same functionality
Gallery of ready-made repost walls to download or repost
Zero-friction design: open, draw, and share in seconds with no setup or accounts
Local-first architecture: all sketches stay on your Mac, nothing leaves unless you ask
AI integration runs through your own subscription with no proxying of prompts
RepostGrid
Chalk