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SlimSnap
Design Tools
Free

SlimSnap

SlimSnap converts your annotated screenshots into structured JSON. It maps pixels to coordinate-based UI elements, enabling AI to understand exactly which buttons you mean. Runs entirely on-device.

Rating
0
Reviews
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Upvotes
about 2 months ago
Listed
Design Tools
Productivity
Artificial Intelligence
Developer Tools
Screenshot Tool
JSON Conversion
UI Automation
On-device AI
Open Source
Tool information
Provider
SlimSnap
Platforms
macOS
Languages
English
Added to directory
about 2 months ago
Last updated
about 1 month ago
Rating
Not available
Pricing
Free

About SlimSnap

What the tool does and who it's for

SlimSnap is a specialized tool that converts screenshots and user annotations into structured JSON data. By processing screenshots locally, it accurately identifies UI elements, their coordinates, and specific user-indicated points, solving the issue where AI models typically struggle to interpret pixel-based button locations. It is designed for developers to improve AI interaction with interface elements.

Key capabilities

Converts screenshots and annotations into structured JSON
Maps visual elements to specific coordinates and IDs
Runs entirely on-device for data privacy
Significant token reduction compared to raw image processing
Open MIT licensed schema and Claude Code skill
Optimized for accurate UI element identification
Designed for developers working with AI interface agents

Pricing

Free — plans below

Free

Most popular

Free

  • Free Mac app
  • Open source schema
  • Open source Claude Code skill
  • On-device processing

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