XML, JSON & text editor for config files with validation & large-file support.
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FileForge is a powerful XML, JSON and text editor for Android, built for configuration files, server files and large documents.
Edit XML, JSON, TXT, CFG, INI, CONF and LOG files directly on your phone with syntax highlighting, live validation, code folding, search tools and support for large files.
Whether you're making a quick config change or working with XML and JSON files containing tens of thousands of lines, FileForge brings proper desktop-style editing tools to Android without cluttering your workspace.
⚡ BUILT FOR LARGE FILES
FileForge uses a high-performance editing engine designed to keep large XML, JSON and text files responsive.
Open, search, navigate and edit large configuration files without relying on a browser or web-based editor.
📝 XML, JSON & TEXT EDITING
Features include:
• XML and JSON syntax highlighting
• Plain-text editing
• Automatic file-type detection
• TXT, CFG, INI, CONF and LOG support
• UTF-8, UTF-8 BOM, UTF-16 and Latin-1 encoding support
• Line numbers and cursor position
• Duplicate line or selection
• XML comment/uncomment tools
✅ LIVE XML & JSON VALIDATION
Catch mistakes while you work.
FileForge automatically validates XML and JSON documents and provides clear error information to help you locate invalid syntax quickly.
↕️ CODE FOLDING & NAVIGATION
Collapse large XML and JSON blocks, fold individual sections or use Fold All to reduce complex files to their main structure.
Navigate quickly with Find & Replace, Go to Line, XML Outline and matching XML structure.
The XML Outline makes very large XML files much easier to work with by letting you jump directly to the section you need.
📂 MULTIPLE FILES AT ONCE
Open XML, JSON and text files together in tabs.
Each file keeps its own editing state, cursor position and document type.
💾 SESSION RESTORE & RECOVERY
FileForge remembers your workspace.
Open tabs, editor settings and document positions can be restored when you reopen the app.
Unsaved work is protected with local recovery snapshots to help prevent changes being lost if the app closes unexpectedly.
📱 DESIGNED FOR MOBILE
FileForge was built around phone editing, not simply squeezed down from a desktop interface.
Enjoy fullscreen immersive editing, compact mobile controls, extra coding keys above the keyboard, adjustable font size, word wrap, configurable indentation and mobile-friendly folding and navigation.
There are no ads inside the editor, keeping your editing workspace clean and distraction-free.
📁 ANDROID FILE INTEGRATION
Open supported files directly from Android file managers using Open with FileForge.
Save changes, use Save As, save a copy, rename supported files, detect read-only documents and quickly return to recently opened files.
⭐ FILEFORGE PRO
The core XML, JSON and text editor remains free.
FileForge Pro is an optional one-time purchase with no subscription.
Pro adds:
• Regex Search & Replace
• Search across open tabs
• Line bookmarks
• File Compare / Diff
• Recursive JSON key sorting
• XML to JSON conversion
• JSON to XML conversion
• Removes advertising outside the editor
🔒 LOCAL-FIRST
Your files are edited locally on your device.
FileForge does not require an account and does not upload your XML, JSON or text files to a FileForge server.
💬 COMMUNITY
Report bugs, suggest features and follow development on Discord:
discord.gg/CwtZ4kmQNM
Whether you need an XML editor, JSON editor, config file editor, large text editor or server configuration editor for Android, FileForge is built to make editing on your phone faster and easier.
FileForge is developed by Trefnio.
https://trefnio.co.uk