Developer Tools
SlimSnap
Turn any screenshot into JSON your CLI agent can read
- 0community votes
- 12DR by Ahrefs +1 (up) since last check
Ahrefs Domain Rating listed 6 Nov 2026, relisted 2 Nov 2026.
A tool that converts screenshots into structured JSON for terminal agents, enabling CLI tools to process visual information as text.
What it is
SlimSnap: the homepage
SlimSnap closes the gap between terminal agents and visual information. When terminal-based AI tools like Claude Code, Aider, and Codex CLI need to discuss UI elements, users must write detailed descriptions instead of pasting screenshots. SlimSnap lets users capture, annotate, and convert screenshots into JSON that these tools can read, making terminal agents see what's on screen.
Capture any area with keyboard shortcuts or select whole scrolling pages. Annotate with arrows, callouts, and highlights to point at specific issues. Copy as JSON with one click and paste into any terminal agent or text-based interface. All processing happens locally on Mac or Windows with no uploads or server involvement.
The JSON output includes every element's text, position, bounding box, and color, plus OCR of all labels and messages. Long pages are split into readable frames. The schema is published under MIT license on GitHub, and users can build their own exporters or use the open Claude Code skill without the app.
Listed capabilities
- 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
Pricing
Pricing model: Free
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SlimSnap metrics
| Metric | Value |
|---|---|
| Domain Rating | 12 +1 (up) since last check |
| Trust Flow | 5 no change since last check |
| Citation Flow | 28 no change since last check |
| Referring domains | 87 no change since last check |
| External backlinks | 260 no change since last check |
Ahrefs Domain Rating listed 6 Nov 2026, relisted 2 Nov 2026. Listed under topic: Reference/Knowledge Management (5). Majestic listed 1 Nov 2026, relisted 1 Nov 2026. Link data listed by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
SlimSnap domain listing data
Show the listing data
| Domain age | 5 months |
|---|---|
| Registered | |
| Expires | |
| Registrar | Name.com, Inc. |
| DNSSEC | Not signed |
SlimSnap launch receipt entry
| Measure | At launch, then latest |
|---|---|
| Domain Rating (Ahrefs) | 11 to 12 +1 (up) since launch 1 Nov 2026, then 5 Nov 2026 |
| Trust Flow (Majestic) | 5 first measured 1 Nov 2026 |
| Referring domains (Majestic) | 87 first measured 1 Nov 2026 |
Day 5 since launch. Next receipt: day 30, 1 Dec 2026. We show what changed, not what caused it: many things affect these numbers. Nothing here is estimated.
Before you launch
The playbook on SaaS Directory List lists what to prepare, what to post on launch day and where else to list your product.
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Quick answers
Why not just paste a screenshot into ChatGPT?
Terminal agents like Claude Code, Aider, and Codex CLI do not accept images at all. SlimSnap solves this by converting screenshots to text-based JSON. It is also more reliable when agents need to reason about specific elements rather than interpret visual information.
Does it send my screenshots to a server?
No. OCR runs locally on your own machine on Mac or Windows. Captures never leave your machine.
Is it open-source?
The JSON schema is open under MIT license on GitHub, and the Claude Code skill is open. The Mac and Windows apps themselves are closed source.
Can it capture a whole page, not just what's on screen?
Yes. Press the whole page capture shortcut and scroll through content yourself or use Autoscroll to let SlimSnap scroll automatically. Long captures are split into page-sized frames with one JSON covering the entire page in order.
What does it run on?
SlimSnap runs on Mac with Apple Silicon and Windows 10 or 11 with the same features on both platforms. Linux support is not yet available.
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