How to Enable WebGPU

If you use Firefox or an older version of Safari, you are likely using WebGL, which works but is slower. For better performance, you can enable WebGPU support in your browser.

Don't worry - the app works fine with WebGL! The quality is the same, processing just takes longer. You have options below to speed it up if you'd like.

What is WebGPU?

WebGPU is a modern web standard that gives websites direct access to your device's graphics card (GPU). It's much faster than the older WebGL technology.

Free AI Video Upscaler runs entirely in your browser - no files are uploaded to servers, everything is processed locally on your device. This means:

To make this work, we need to use your GPU for AI processing. WebGPU makes this 2-5x faster than WebGL.

What is WebGL?

WebGL is an older graphics technology that's supported by all browsers. It works great, but has performance limitations for AI processing. Think of it as taking the scenic route - you'll get there, it just takes a bit longer.

Your Options

Option 1: Just Use WebGL (Recommended for Most)

Keep using the tool as-is! It works perfectly fine with WebGL. The quality is identical to WebGPU - only the processing speed is different. A 1-minute video might take 2 minutes to process instead of 1 minute.

Option 2: Update Your Browser (Recommended for Safari Users)

Safari 26 (released September 2025) includes WebGPU by default! If you're using an older version, updating will give you the fastest performance.

To update Safari, you must update your operating system:

  • macOS: Go to the Apple menu → System Settings (or System Preferences) → Software Update. Look for macOS Tahoe (version 26) or later.
  • iPhone/iPad: Go to Settings → General → Software Update. Look for iOS 26/iPadOS 26 or later.

Check your Safari version: Safari menu → About Safari. You need version 26.0 or higher for WebGPU support.

Option 3: Enable WebGPU Flag

If you want faster processing and don't mind enabling an experimental feature, you can turn on WebGPU in your browser settings. Instructions below.

Note: WebGPU is experimental in Firefox and Safari, so there's a small chance of bugs.

Firefox

  1. Open Firefox Settings: Type about:config in your address bar and press Enter
  2. Accept the Warning: Click "Accept the Risk and Continue"
  3. Search for WebGPU: In the search box, type dom.webgpu.enabled
  4. Enable WebGPU: Click the toggle button to set it to true
  5. Restart Firefox: Close and reopen Firefox for the changes to take effect

Safari (macOS)

  1. Open Safari Settings: Click Safari in the menu bar, then select "Settings" (or "Preferences" on older versions)
  2. Go to Advanced: Click the "Advanced" tab
  3. Enable Developer Menu: Check "Show features for web developers" at the bottom
  4. Open Feature Flags: Click "Develop" in the menu bar, then select "Feature Flags"
  5. Enable WebGPU: Find "WebGPU" in the list and check the box to enable it
  6. Restart Safari: Close and reopen Safari for the changes to take effect

Safari (iOS/iPadOS)

  1. Open iOS Settings: Go to the Settings app on your iPhone or iPad
  2. Find Safari: Scroll down and tap "Safari"
  3. Go to Advanced: Tap "Advanced" at the bottom
  4. Open Feature Flags: Tap "Feature Flags"
  5. Enable WebGPU: Find "WebGPU" and toggle it on
  6. Restart Safari: Close Safari completely and reopen it

Note:

WebGPU is still experimental in Firefox and older versions of Safari. If you encounter issues after enabling it, you can always return to these settings and disable it again.

Option 4: Use a Chromium Browser

Chrome, Edge, Brave, and other Chromium-based browsers already have WebGPU enabled by default. If you want the fastest experience right now, switching browsers is an easy option.

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