SlimSnap

Turn any screenshot into JSON your CLI agent can read. They finally have eyes.

SlimSnap transforms screenshots into structured JSON, enabling CLI agents like Claude Code, Aider, and Codex CLI to interpret visual information. It allows users to capture, annotate, and convert any screen area into machine-readable JSON, bridging the gap between visual interfaces and text-based terminal environments. This tool reduces token usage and enhances agent capabilities.

Free

How to use SlimSnap?

Capture any part of your screen using a keyboard shortcut (⌘⇧S). Use annotation tools like arrows and callouts to highlight specific elements. With a single click, convert the annotated screenshot into JSON format. This JSON can then be pasted directly into your terminal or integrated with AI coding assistants for analysis and action.

SlimSnap 's Core Features

Screenshot capture with selection tool

Annotation tools (arrows, callouts, highlights)

One-click JSON conversion

Local OCR for text extraction

Deterministic element bounding boxes

Open MIT schema for JSON format

Mac-native application

SlimSnap 's Use Cases

Providing visual context to terminal-based AI agents

Describing UI elements for code generation

Debugging by highlighting errors in screenshots

Reducing token costs for AI vision models

Integrating visual information into CI/CD pipelines

Automating UI testing with structured data

Communicating UI issues in text-only environments

SlimSnap 's FAQ

Most impacted jobs

Software Developer

AI Engineer

Product Manager

UX Designer

DevOps Engineer

Technical Writer

SlimSnap 's Tags

#screenshot to JSON #AI agent #CLI tool #developer tool #coding assistant #OCR #macOS app #token saving

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