OnePreview vs SoloMD

Preview Markdown, source code, structured data and archives on iPhone and iPad. OnePreview is a local-first file viewer with no account required. READ MARKDOWN, DIAGRAMS AND MATH View GitHub-style Markdown with tables, task lists and highlighted code. Switch between rendered content and source. Mermaid diagrams and KaTeX formulas use bundled rendering assets. EXPORT MARKDOWN TO PDF Open a standard Markdown file (.md or .markdown) in OnePreview to create an A4 PDF report. Check the actual PDF preview, with continued table headers, wrapped code, Mermaid diagrams and KaTeX formulas, then save it using the system file interface. Document content is processed on your device. INSPECT DATA, CODE AND ARCHIVES Read structured data and source code, inspect SQLite schemas and sample rows without editing the database, and see the folder hierarchy inside ZIP and TAR.GZ archives before extracting. SUPPORTED FORMATS Markdown (.md, .markdown), MDX, TextBundle, TextPack, JSON, JSONL, YAML, XML, CSV, TSV, TOML, ENV, INI, properties, Apple property lists (plist), SQLite (.sqlite, .sqlite3, .db), source code, plain text, logs, ZIP, TAR.GZ and TGZ. Syntax highlighting supports languages including Swift, Python, JavaScript, TypeScript, Java, C/C++, Objective-C, Ruby, Rust and Shell. OPEN YOUR FILES Tap Open File in OnePreview, or long-press a supported document in Files, choose Open With, then select OnePreview. A normal tap in Files may use Apple's built-in preview; OnePreview does not replace every system preview on iPhone or iPad. Try the sample folder from the home screen to explore supported formats.

SoloMD is a lightweight, distraction-free Markdown editor for iPad. One file. One window. Just write. Built from the ground up as a focused writing tool - no account, no cloud, no telemetry, no subscription. Your notes stay in plain .md and .txt files on your iPad, readable by any editor on any platform, today and in ten years. CORE EDITING - Live preview - Markdown symbols fade out after the cursor leaves the line. - Rich syntax styling - real big headings, real bold, real monospace for code. - Light and Dark themes that follow iPad system appearance. - Multi-encoding - auto-detects UTF-8, UTF-16, GBK, Big5. - Tabs with dirty indicators. - File tree sidebar, outline view, and global search. MARKDOWN POWER - KaTeX math - inline and block math render instantly. - Mermaid diagrams - flowcharts, sequence diagrams, Gantt charts. - Task lists with clickable checkboxes. - Footnotes, YAML front-matter, text highlighting. - Syntax highlighting for 13 plus languages. - Synced split-pane scroll. - Tap an image or Mermaid diagram to open a pinch-zoomable overlay. BUILT FOR IPAD - 44 pt touch targets across toolbar, outline, and file tree. - Larger default font sizes tuned for iPad screen distance. - Split-view and multitasking friendly. - Works with hardware keyboards. - Portrait and landscape, every orientation. WRITER TOOLS - Focus mode - non-current paragraphs dim for deep work. - Typewriter mode. - Session restore - auto-saves so you never lose a line. - Chinese power tools - simplified/traditional conversion, pinyin, CJK word counts. - Spell check. - Custom CSS. EXPORT - HTML (newsletter quality) - PDF with KaTeX and Mermaid baked in - Word (.docx) with tables preserved - Copy as HTML, plain text, or Markdown PRIVACY FIRST SoloMD collects no personal data. No account. No analytics. No ads. No tracking. All your notes live locally in files you own. SoloMD is open source (MIT). Source: github.com/zhitongblog/solomd