Your files stay local
Open AI result files on your Mac. Slate Viewer does not upload document text, paths, JSON fields, table cells, or clipboard contents by default.
Slate Viewer a lighter, clearer way to read AI files.
A local macOS reader for AI output files. Open Markdown, JSON, JSONL, TXT, CSV, and TSV with clear previews, raw source, and no cloud workspace.
Features
Open the answer. Stay in your flow.
When an AI tool leaves you with a file, Slate Viewer helps you read it locally, check the source, and move on.
The formats AI leaves behind
Markdown, JSON, JSONL/NDJSON, TXT/LOG, CSV, and TSV open as readable results, not raw clutter.
Preview first. Raw when needed.
Start with a clear preview, switch to Raw to verify details, and make small edits only when the file needs them.
Made for reading, not managing
Quiet typography and outline-first views help you understand generated output without creating another workspace.
Pricing
Simple pricing. Buy once.
Slate Viewer 1.0 is now on the Mac App Store for a one-time US price of $14.90. The launch-price period ends January 20, 2027.
App Store
Now on the Mac App Store
Version 1.0
Requires macOS 26.0 or later
Buy and download Slate Viewer through Apple. The website does not sell a separate license.
- Apple purchase and redownload with the same Apple Account.
- App Store refunds follow Apple policies.
- Website licenses do not unlock the App Store build.
Early bird
Slate Viewer early bird
$14.90
one-time App Store purchase
The current US App Store price is $14.90. The launch-price period ends January 20, 2027.
- Launch pricing runs from July 20, 2026 through January 20, 2027.
- App Store refunds follow Apple policies.
- Website licenses do not unlock the App Store build.
- Read Markdown, TXT, JSON, JSONL, CSV, and TSV.
- Preview, Raw, and Light Edit modes.
- Finder Open With support.
- Markdown Quick Look preview.
- Local-first: your file contents stay on your Mac.
After launch pricing
Future App Store price
Announced later
App Store price may vary by region
Any price change after January 20, 2027 will be shown in the App Store before it takes effect.
- No pressure countdowns or complicated discount gates.
- Same reader-first product scope unless the 1.0 roadmap changes.
- The App Store remains the source of truth for current regional pricing.
FAQs
Before you install Slate Viewer.
Short answers for the questions that usually matter before trying a local file reader.
Which formats does Slate Viewer read?
Slate Viewer 1.0 starts with Markdown, JSON, JSONL/NDJSON, TXT/LOG, CSV, and TSV so common AI output can feel stable and clear first.
Does Slate Viewer upload my files?
Not by default. Slate Viewer opens files locally on your Mac and does not upload document text, file paths, JSON key-value content, table cells, or clipboard contents to Slate Viewer servers.
Where can I buy Slate Viewer?
Slate Viewer 1.0 is available on the Mac App Store. Apple handles purchase and redownload access; the website does not sell a separate license.
Is Slate Viewer a knowledge base or AI writing tool?
No. Slate Viewer does not create another workspace, sync your files, or generate AI answers. It helps you read and inspect the result files AI tools already created.
Does the website sell a separate license?
No. Slate Viewer is currently sold only through the Mac App Store. The website does not issue a separate license key or customer portal.
What is the refund policy?
App Store refunds are handled under Apple policies. The website does not promise a separate direct-purchase refund window.