SlimSnap vs PNGine
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
SlimSnap compared with PNGine
| Detail | 
SlimSnap | 
PNGine |
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| What it does | Turn any screenshot into JSON your CLI agent can read
| Declarative WebGPU in S-expressions that compiles to compact bytecode
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| PT
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| Pricing model | Free
| Not given
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| Pricing | Not given
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| Key features | - Capture any area or whole scrolling pages with keyboard shortcuts
- Annotate with arrows, callouts, and highlights
- Autoscroll for long page captures
- Supports Mac Apple Silicon and Windows 10/11
| - Declarative WebGPU syntax using S-expressions
- SJON format for describing pipelines and passes
- Compact bytecode compilation
- Command-line interface for validation and compilation
- Browser API from 3 KB to 17 KB gzipped
- Mock GPU inspection tool
- Standalone HTML export
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| What makes it different | - Terminal agents finally have eyes to see screenshots as structured data
- Annotations export as structured intent pointing at specific elements
- No login, no uploads, processing stays on your machine
- Open MIT schema allows building custom exporters
- Handles long pages by splitting into readable frames with unified JSON
| - Compiles to few hundred bytes compared to typical GPU programs
- Can embed compiled programs in PNG files
- Declarative syntax matches WebGPU spec 1:1
- Runs anywhere WebGPU is supported
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 12 ▲ +1 (up) since last check | 14 ▲ +1 (up) since last check |
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| Trust Flow (Majestic) | 5 | 8 |
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| Citation Flow (Majestic) | 28 | 34 |
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| Referring domains (Majestic) | 87 | 310 |
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3 details filled in for both companies.
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