CyberGame

Open HTML and Markdown files on iPhone

Official home of Html Preview, an HTML viewer for iPhone, and Md Preview, a Markdown viewer for iPhone. Both help iPhone and iPad users open local files from Files, Mail, downloads, cloud drives, GitHub, and AI chatbots without upload-heavy workarounds.

Choose the viewer for the file you have

Use the official product site for guides and screenshots, or open the App Store listing when you already know which file viewer you need.

Html Preview - HTML Viewer for iPhone

Open local .html, .htm and .xhtml files
HTML viewer

Built for HTML files from ChatGPT, Claude, Files, Mail, Safari downloads, cloud drives, Slack, and other iOS apps.

HTML viewer site App Store

Md Preview - Markdown Viewer for iPhone

Open local .md, .markdown and .mdx files
Markdown viewer

Built for Markdown files from ChatGPT, Claude, GitHub, Obsidian, Notion, Files, Mail, downloads, and AI workflows.

Markdown viewer site App Store

Common iPhone file-opening problems

These official guides cover the searches that usually lead people to CyberGame file viewer apps.

Open an HTML file on iPhone Open a Markdown file on iPhone iPhone will not open HTML iPhone will not open Markdown Best HTML viewer for iPhone Best Markdown viewer for iPhone

Open AI exports from ChatGPT, Claude, and coding tools

Deep links for people who already know the file came from an AI assistant, coding agent, or iPad workflow.

Open ChatGPT and Claude HTML files Open ChatGPT and Claude Markdown files Open ChatGPT HTML on iPhone/iPad Open ChatGPT Markdown on iPhone/iPad Open ChatGPT HTML on iPad Open ChatGPT Markdown on iPad Open Cursor, Codex, and v0 HTML files Open Cursor, Codex, and v0 Markdown files

Official product support

Choose the matching support page for capability details and public bug reports, or email CyberGame Limited for private support.

Html Preview privacy and support Md Preview privacy and support Email contact@cybergame.ai

Do not attach private files, account data, or confidential content to a public issue.

iPhone HTML and Markdown viewer FAQ

Short answers for people choosing a local file preview app for iOS.

What does CyberGame make for iPhone file preview?

CyberGame builds focused iPhone and iPad utilities for opening local HTML and Markdown files from Files, Mail, Safari downloads, cloud drives, GitHub, and AI chatbot exports.

Which app opens HTML files on iPhone?

Html Preview is the CyberGame iOS utility for opening local .html, .htm, and .xhtml files on iPhone and iPad.

Which app opens Markdown files on iPhone?

Md Preview is the CyberGame iOS utility for opening local .md, .markdown, .mdx, .rmd, and .qmd files on iPhone and iPad.

Do the file viewer apps include subscriptions or ads?

Html Preview and Md Preview have no subscriptions, no in-app purchases, and no ads. They are distributed through the App Store.

How do I contact CyberGame Limited for app support?

Email contact@cybergame.ai for private support, or use the public issue tracker linked from the product support pages. Do not attach private files to public issues.

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