Six free tools for your PC

Fix the PC you have. Plan the one you want.

Guided troubleshooting that walks you from symptoms to the actual cause, a build planner that checks your parts fit together, and short courses that teach you why any of it works. Free, and everything you save stays private to your account.

Six tools, one account

Whether something's broken, you're planning an upgrade, or you just want to understand how any of it works.

Troubleshoot

Guided diagnostic wizard

Answer a few questions about what you're actually seeing and get routed to the likely cause with concrete steps — not a wall of unrelated forum threads.

  • 14 categories — black screens, crashes, blue screens, stutter, overheating, boot failures, storage, audio, network and security
  • Decodes real symptoms — TDR errors, BSOD stop codes, debug LEDs
  • Mark each diagnosis Fixed or Didn't work and keep notes, so you never retry the same thing twice
Start a diagnostic
Assistant · New

Ask in your own words

Describe the problem however it comes out and it finds the closest answer across everything MoodFix knows.

  • Searches all 14 troubleshooting paths, every course lesson and the parts catalogue
  • Answers with the actual first step, then links you straight to the full guide
  • Runs entirely in your browser — your questions are never sent anywhere
Ask a question
Learn · New

Courses that start from scratch

Short lessons that teach you what's actually happening inside the machine, so next time you don't need a guide at all.

  • What every part does, how a PC boots, why throttling hides as other faults, reading stop codes, how the internet reaches you, and staying safe online
  • Rotatable 3D diagrams you can spin to see how it fits together
  • Every lesson ends with a real scenario — diagnose it, then find out why
Start learning
Plan a build

Build planner with compatibility checking

Pick your parts and find out immediately whether they actually work together — before the box arrives and the cooler doesn't fit.

  • Catches socket mismatches, DDR4 vs DDR5, GPU length, cooler height, radiator fit and PSU headroom
  • A 3D model of your build, drawn to scale — anything that doesn't fit turns red
  • Live totals in USD or Saudi Riyal, with power draw and a suggested PSU
Plan a build
Drivers

Find the right driver, fast

Scans what your browser can see about your hardware, then sends you straight to the manufacturer's own download page.

  • Detects your graphics card, OS and architecture automatically
  • Vendor software for ASUS, MSI, Gigabyte, Dell, HP, Lenovo and more
  • Only ever links to official sites — never third-party "driver updater" tools
Scan my device
Network

Measure your connection

Find out whether your connection is genuinely unstable, or whether the problem is somewhere else entirely.

  • Real latency, jitter and packet loss — the numbers a speed test hides
  • Live network diagram that reacts to what it measures
  • Guided fixes for dropouts, lag spikes, bufferbloat and DNS faults
Test my connection

Yours, and private

Your account, your data.

🔒

Private by default

Diagnostics, notes, and saved builds are protected by database-level access rules — not just a hidden button. Only you can read your own data.

📋

Nothing gets lost

Every diagnosis and build is saved to your account, so you can pick up exactly where you left off.

📱

Works on your phone

Built to be usable one-handed while you're stood over an open case with the side panel off.

🎯

No noise

If your parts are fine and your GPU suits your monitor, it says nothing. Warnings only appear when something genuinely deserves your attention.