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Head-to-head · Game Overlay Software

MangoHud vs Special K

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score MangoHud #4 in Game Overlay Software 8.8/10 Free plan Free plan✓ 2 of 4 features Visit MangoHud
Special K #7 in Game Overlay Software 8.2/10 Free plan Free plan✓ 1 of 4 features Visit Special K

MangoHud leads on 0 checks, Special K on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMangoHud · 8.8/10
  • Free planboth
  • Most featuresMangoHud · 2 of 4

MangoHud scores higher on our rubric for game overlay software: 8.8 against 8.2 out of 10; our editors rank them #4 and #7.

On supported platforms, MangoHud gives you Linux where Special K offers Windows.

MangoHud is the better fit for linux gamers needing detailed system overlays. Special K is the better fit for advanced Windows display and game controls.

  • MangoHud fits best

    Linux gamers needing detailed system overlays

  • Special K fits best

    Advanced Windows display and game controls

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature MangoHud 8.8/10 Visit ↗ Special K 8.2/10 Visit ↗
At a glance
Editor score 8.8 8.2
Ranking #4 in Game Overlay Software #7 in Game Overlay Software
Best for Linux gamers needing detailed system overlays Advanced Windows display and game controls
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted, Desktop Desktop
Platforms Linux Windows
Support Community, Docs Community, Docs
Integrations 3 integrations 4 integrations
Built for Solo, Small business Solo
Features MangoHud 2/4 · Special K 1/4
In-game chat Not checked yet Not checked yet
Performance statistics ✓ ✓
Recording controls Not checked yet Not checked yet
Hardware monitoring ✓ (best) Not checked yet
Specs
Supported platforms Linux Windows
Supported games Not checked yet Not checked yet
Our review
Pros
  • Detailed FPS, frametime, hardware, temperature, and power metrics
  • Global and per-application settings with presets and hotkeys
  • Free, open-source Linux software with Steam, Lutris, and gamescope support
  • Advanced FPS limiting with VRR optimization and latency analysis
  • HDR retrofits and HDR screenshot capture across major graphics APIs
  • Integrations with Steam, Epic Games Store, Xbox, and GOG
Cons
  • Supports Linux rather than multiple desktop gaming platforms
  • Monitoring and benchmarking are the focus, not broader game utilities
  • No AI features
  • Windows-only availability limits its audience
  • Game-specific improvements are selective rather than universal
  • Its advanced controls may exceed the needs of casual players
Our verdict

MangoHud is an open-source overlay for Vulkan and OpenGL games on Linux. It is designed for gamers who want detailed visibility into performance and hardware behavior while playing. The overlay can show FPS, frametime, CPU and GPU load,…

Read the review →

Special K is a free, open-source Windows utility for PC gamers who want detailed control over rendering, display behavior, input, and selected game-specific improvements. It combines frame-rate limiting, VRR optimization, latency and…

Read the review →
  1. MangoHudGame Overlay Software 8.8Free plan
  2. Special KGame Overlay Software 8.2Free plan

Strengths and trade-offs

  • MangoHud — where it wins

    • Detailed FPS, frametime, hardware, temperature, and power metrics
    • Global and per-application settings with presets and hotkeys
    • Free, open-source Linux software with Steam, Lutris, and gamescope support

    Where it doesn't

    • Supports Linux rather than multiple desktop gaming platforms
    • Monitoring and benchmarking are the focus, not broader game utilities
    • No AI features

  • Special K — where it wins

    • Advanced FPS limiting with VRR optimization and latency analysis
    • HDR retrofits and HDR screenshot capture across major graphics APIs
    • Integrations with Steam, Epic Games Store, Xbox, and GOG

    Where it doesn't

    • Windows-only availability limits its audience
    • Game-specific improvements are selective rather than universal
    • Its advanced controls may exceed the needs of casual players

More comparisons

All game overlay software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update