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Justin Hopper edited this page May 20, 2026 · 3 revisions

Micro File Manager (MFM)

📌 This wiki reflects v3.3. Check the changelog for what's new. A lightweight, single-file PHP web file manager — fork of TinyFileManager with a focus on upgrade-safe configuration, security, and usability improvements.

What is MFM?

Drop a single PHP file on any server and instantly get a full-featured file management UI in your browser. No install, no composer, no dependencies. MFM builds on TinyFileManager's solid foundation with significant improvements across security, configuration management, conflict handling, and privilege elevation.

Quick Navigation

Topic Description
Getting-Started Installation, first login, basic setup
Configuration-System External config, merging behavior, full settings reference
Login-and-Security Login flow, brute-force protection, session security
Settings-Menu Everything in the settings page explained
Help-Menu Help section contents and links
Upload-System Uploads, conflict resolution, batch processing
Privilege-Elevation Edit root-owned files via the mfm-elevate daemon

What's Different from TinyFileManager?

MFM adds the following on top of the upstream TFM codebase:

  • Upgrade-safe external config — all settings in config.php, survives file replacement
  • Privilege elevation — edit root-owned system files without giving www-data sudo access
  • Brute-force login protection — IP-based lockout with configurable thresholds
  • Security headers — X-Frame-Options, nosniff, Referrer-Policy, strips X-Powered-By
  • Conflict resolution — upload, copy, and move operations show Overwrite / Rename / Cancel
  • Upload conflict queue — batch resolution with "do this for all" option
  • Write-permission awareness — read-only badge, disabled Save, specific error messages
  • Configurable session timeout — 401 detection, auto-redirect to login on expiry
  • ACE editor config — theme and font size configurable via config.php
  • Dark-mode file viewer — syntax theme auto-switches to match the UI theme
  • Server local timezone — file timestamps display in the server's local timezone

Project Links

Home · Getting-Started · Configuration-System · Login-and-Security · Upload-System · Privilege-Elevation · GitHub

Home

Wiki current as of v3.3

Getting-Started

Core

Advanced

Links

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