Slate Viewer guide
Markdown reader vs editor: what to use for Claude or Codex output files
Claude, Codex, ChatGPT, and similar tools leave result files on disk. The useful question is not “which Markdown app is best,” but whether you need an editor (to build) or a reader (to review and leave).
Direct answer
Use a Markdown editor or IDE when you are authoring, refactoring a repo, or growing a vault. Use a Markdown reader when Claude or Codex already wrote the file and you only need a clearer Preview, Raw when a line matters, then back to your own work. Slate Viewer is SoftApp’s local macOS reader for those AI result files—quieter and lighter than opening another VS Code tab or inventing an Obsidian vault “just to skim.” It is not an editor replacement. Requirements: macOS 26.0+ on Apple Silicon, Mac App Store id 6789441727, version 1.4.2, one-time US $14.90 through January 20, 2027.
Reader vs editor (plain definitions)
| Job | Lean toward | Why |
|---|---|---|
| Review a Claude / Codex report and leave | Reader | Preview-first, stay in flow, no workspace tax |
| Edit a codebase or long-form draft | Editor / IDE | Projects, git, extensions, multi-file write |
| Grow linked notes over months | Vault / note app | Graph, sync, enduring knowledge—not one export |
| Mixed AI output (Markdown + tables + logs) | One quiet reader | Avoid a pile of IDE tabs for skim-only files |
An editor optimizes for changing text inside a workspace. A reader optimizes for understanding a file that already exists—then closing it. SoftApp positions Slate Viewer firmly as the latter.
When a quieter reader fits Claude or Codex files
- The model already produced a Markdown report, table export, or log you need to read, not rewrite.
- Opening VS Code or a vault would stack another tab / workspace you did not ask for.
- You want Preview first, with Raw only when a field, pipe, or line looks wrong.
- Optional English ↔ Simplified Chinese Markdown translation helps you finish the review without changing the source file.
That is the same experience wedge as our Q1 and Q4 pages: a lighter alternative for reading AI reports, and one quiet reader for mixed output instead of IDE tabs.
When you should keep the editor (honest boundary)
Keep VS Code, Xcode, or your usual editor when the next step is coding, multi-file refactors, terminals, or debugging. Keep Obsidian when the file belongs in a vault you already maintain. Slate Viewer does not replace those tools—and does not claim to.
Slate Viewer as SoftApp’s reader
Slate Viewer opens local AI result files on your Mac: Markdown, CSV/TSV, TXT/LOG, and related JSON/JSONL when a run leaves them. It starts in a readable Preview, keeps Raw available, and stays local by default (no upload of document text, paths, JSON fields, table cells, or clipboard contents to Slate Viewer servers by default). It does not generate AI answers or create a cloud workspace.
- Version: 1.4.2
- System: macOS 26.0 or later · Apple Silicon
- Price: one-time US $14.90 on the Mac App Store (launch-price period through January 20, 2027; App Store is source of truth for regional pricing)
- Purchase: Mac App Store only (id 6789441727); the website does not sell a separate license
FAQ
Is Slate Viewer a Markdown editor?
No. It is a local reader with Preview, Raw, and light correction when a small fix is enough. For serious authoring or repo editing, keep your editor.
What should I use for Claude or Codex output files on Mac?
If the job is review, use a quieter reader such as Slate Viewer. If the job is building, use your IDE. See also Slate Viewer vs VS Code & Obsidian Preview.
Can one reader cover mixed AI output?
Yes—Markdown, tables, and logs in one quiet workflow instead of a pile of IDE tabs. Details: Read mixed AI output on Mac.
Does this page claim rankings or sales?
No. No AggregateRating, #1, best-of lists, or invented sales figures—only Mac App Store facts above.
Related guides
Slate Viewer for Mac