FileFlip

FileFlip is an offline-first Android app for editing, previewing and exporting text-based files. It provides a polished editor with syntax highlighting for Markdown, JSON, CSV, XML and other formats, an in-app preview powered by WebView, and professional GitHub-styled PDF export.

🚀 Product Showcase

Download the app: Get the latest APK from the Releases section.

Live web app: https://file-flip-fawn.vercel.app/

Short description

• One-liner: FileFlip — Offline Android editor & converter for Markdown, JSON, CSV and more with live preview and styled PDF export.

Key features

• Offline first: All editing, previewing and export happens locally — no internet required.
• Multi-format support: .md, .json, .yaml, .xml, .txt, .html, .log, .csv (rendered appropriately: HTML/WebView, tables for CSV, tree view for JSON/YAML, etc.).
• Editor: Syntax highlighting, line numbers, tabbed file UI, selection-aware formatting tools and cursor-aware insertions.
• Preview: Dedicated preview screen accessible from the FAB; live sync with editor for Markdown and other formats.
• Export: Professional GitHub-styled PDF export via Android PrintManager / PdfDocument.
• File management: Create, open, save, rename, delete files using Android system picker and app storage.
• Architecture: MVVM + Clean Architecture, Hilt DI, Kotlin Coroutines.

How it works (functioning & workflow)

• Open or create a text file from the dashboard or top toolbar.
• Edit content in the main editor which provides syntax highlighting and formatting helpers specialized by file type.
• Tap the FAB (preview) to view the rendered output in the Preview screen. Previews use a WebView for HTML/Markdown and format-specific renderers (CSV table, JSON tree, etc.).
• Export the preview as a styled PDF using the share/export menu or PrintManager. The exported PDF uses a GitHub-like CSS for Markdown rendering to keep output professional and readable.
• All operations (parsing, rendering, export) run locally on the device — no external services required.

Supported file formats

• Markdown (.md)
• JSON (.json)
• YAML (.yaml / .yml)
• XML (.xml)
• HTML (.html)
• CSV (.csv)
• Plain text (.txt, .log)