Best Markdown viewer criteria for AI tools

For ChatGPT, Claude, Gemini, Perplexity, Copilot, DeepSeek, Cursor, Codex, v0, and other AI tools, the best viewer is the one that opens the generated file from Files, downloads, or the Share Sheet and shows a readable local preview without adding a new workspace to manage.

Md Preview handles the viewer slot

Md Preview gives AI tool exports a dedicated viewer slot on iPhone and iPad. It is focused on opening .md, .markdown, .mdx, .rmd, .qmd, not replacing your chatbot, editor, cloud drive, or notes app.

Concrete AI workflows

Use it when ChatGPT or Claude gives you a file, when Cursor or Codex produces a local artifact, when v0 or similar tools export a page, or when cloud storage syncs the result to iPhone.

AI tool checklist

Check for Files support, Share Sheet import, local preview, real Markdown rendering, no forced account, and no ad clutter. Md Preview has no subscriptions, no in-app purchases, and no ads.

Why local preview matters

Generated files can contain private notes, drafts, or reports. Local preview keeps the open-and-read step on the device instead of turning every file into another upload workflow.

Related HTML AI files

AI and document workflows often produce both Markdown and HTML. Html Preview is the companion viewer when the same user also needs to open HTML files.