FileForge: XML JSON Editor

EpicFailWinner

Contains adsIn-app purchases

About this app

FileForge is a fast, mobile-first editor for XML, JSON and text files, designed to bring proper desktop-style editing tools to your Android device without cluttering the editor with unnecessary distractions.

Built by EpicFailWinner, FileForge is designed for everything from quick configuration edits to huge XML and JSON files containing tens of thousands of lines.

⚡ Built for large files

FileForge uses a high-performance editor engine designed to keep large documents responsive.

Open, search and edit large configuration files without relying on a browser or web-based editor.

📝 XML, JSON & text editing

FileForge includes:

XML syntax highlighting
JSON syntax highlighting
Plain-text editing
Automatic file-type detection
Support for additional text-based formats such as CFG, INI, CONF and LOG files
UTF-8, UTF-8 BOM, UTF-16 and Latin-1 encoding support
✅ Live validation

Catch mistakes while you work.

FileForge automatically validates XML and JSON documents and provides clear error information so you can quickly locate invalid syntax.

↕️ Code folding

Collapse large XML and JSON blocks to make complex files easier to navigate.

You can fold individual sections or use Fold All to quickly reduce large documents to their main structure.

🔍 Powerful navigation

FileForge includes:

Find and Replace
Go to Line
XML Outline
Matching XML structure
Line numbers
Cursor line and column information
Duplicate line or selection
XML comment/uncomment tools

⭐ FileForge Pro

Want more advanced tools? FileForge Pro unlocks additional power-user features while keeping the core editor free.

Pro includes:

• Regex Search & Replace
• Search across all open tabs
• Line bookmarks
• File Compare / Diff
• Recursive JSON key sorting
• XML to JSON conversion
• JSON to XML conversion
• Removes advertising outside the editor

FileForge Pro is a one-time purchase — no subscription.

The core XML, JSON and text editor remains available for free.

The XML Outline makes navigating very large XML files especially easy — search for a block and jump directly to it.

📂 Multiple files at once

Open XML, JSON and text files together using FileForge's tabbed editor.

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 also protected with local recovery snapshots, helping prevent changes from being lost if the app closes unexpectedly.

📱 Designed for mobile

FileForge was built around phone editing rather than simply squeezing a desktop editor onto a smaller display.

Features include:

Fullscreen immersive editing
Compact mobile controls
Extra coding keys above the keyboard
Adjustable font size
Word wrap
Configurable indentation
Mobile-friendly folding and navigation
No ads inside the editor — your editing workspace stays clean and distraction-free
📁 Android file integration

Open supported files directly from Android file managers using Open with FileForge.

FileForge can also:

Save changes back to supported documents
Save As
Save a copy
Rename supported files
Detect read-only documents
Remember recently opened files
🔒 Local-first

Your documents 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.

💬 EpicFailWinner Community

FileForge is developed by EpicFailWinner.

Join the community, report bugs, suggest features or follow development through Discord:

discord.gg/CwtZ4kmQNM

Whether you're editing configuration files, server files, development data or simply need a capable XML/JSON editor on your phone, FileForge is built to make the job faster and easier.

What’s new

Improved app optimisation and release performance, corrected advertising configuration, and made general stability improvements. No changes to your files or core editor workflow — just a cleaner, more reliable FileForge experience.