WowHDR

SDR to HDR HLG Converter

Only for Mac

$14.99

Mac

Transform your videos into stunning HDR with rich color and brightness. WowHDR makes HDR conversion simple and fast, keeping your audio and subtitles intact. Convert your everyday SDR videos into vivid, broadcast-grade HDR — locally on your Mac, with zero data collection. WowHDR is a focused, native macOS utility that elevates Standard Dynamic Range videos into HDR using the HLG (Hybrid Log-Gamma) transfer function and the Rec. 2100 color space. Designed for simplicity and quality, it combines an inverse tone mapping pipeline with intelligent highlight, midtone, and contrast adjustments to deliver consistent, broadcast-ready HDR output. Unlike conversion tools that rely on heavy AI processing, WowHDR follows a deterministic pipeline tuned for predictable results across content types. Brightness, contrast, and color are expanded into the HLG range while preserving the original creative intent — no overcooked highlights, no plasticky tone mapping. The result is HDR video that looks natural on iPhone, iPad, Apple TV, and any HLG-compatible display. KEY FEATURES - HLG (Rec. 2100) Output — Industry-standard HDR transfer function compatible with broadcast and consumer displays - Inverse Tone Mapping — Perceptual SDR-to-HDR expansion with selective highlight boost and soft-clip ceiling for professional-grade results - Adjustable HDR Parameters — Fine-tune HDR intensity, highlight boost, midtone lift, and global brightness - HEVC Main10 Encoding — Hardware-accelerated encoding on Apple Silicon - Watermark Support — Optional logo overlay with full position, scale, opacity, and margin control - Conversion Control — Pause, resume, and cancel with automatic cleanup of partial files - Batch Queue — Convert multiple videos in sequence; resume the queue from where you left off after cancelling - Wide Format Support — MP4, M4V, MOV - Audio Compatibility — Supports AAC, AC-3, E-AC-3 audio formats; videos without audio are also supported TECHNICAL DETAILS Output is encoded as HEVC Main10 (10-bit) in a MOV container with proper Rec. 2100 HLG metadata, ensuring full compatibility with the Apple ecosystem and modern HDR TVs. The original video file is never modified — each conversion produces a new file with the "-HLG.mov" suffix in your chosen save location. The conversion pipeline uses inverse tone mapping from Rec. 709 to Rec. 2020, with perceptually accurate highlight and midtone expansion. Hardware acceleration is available on Apple Silicon (M1/M2/M3/M4) for fast HEVC Main10 encoding. PRIVACY BY DESIGN WowHDR processes everything locally on your Mac. No videos leave your device. No analytics. No telemetry. No third-party SDKs. No servers. The Privacy Policy declaration is "Data Not Collected" — and that reflects the actual architecture, not a marketing promise. THOUGHTFUL DETAILS - Drag-and-drop queue with multi-file support - Real-time per-video progress - Dock icon progress indicator with percentage - Pause/Resume/Cancel with no quality loss and automatic cleanup - Source folder used as default save destination - Security-scoped folder access for sandboxed safety - Single-window 800×600 interface designed for clarity - Built-in Help, FAQ, EULA, and Privacy Policy SYSTEM REQUIREMENTS - Recommended: Apple Silicon Mac (M1/M2/M3/M4) for hardware-accelerated HEVC Main10 - Minimum: any supported Mac (encoding is slower without hardware acceleration) - HDR-capable display recommended for preview (not required for conversion) SUPPORTED FORMATS Input: MOV, MP4, M4V Output: MOV with HEVC Main10, Rec. 2100 HLG, BT.2020 Audio (passthrough): AAC, AC-3, E-AC-3, or no audio Not supported: DTS, DTS-HD (re-mux required before conversion) ABOUT THE DEVELOPER WowHDR is built by Inphovid — an independent software brand focused on HDR tools for the Apple ecosystem. The catalog also includes Foton-HDR, Vimple, Gain Map HDR, and iVC-HDR. Visit inphovid.com to learn more.

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Version 1.1 This update brings improved compatibility and a smoother experience: - Enhanced subtitle compatibility for a wider range of videos, so more of your movies convert seamlessly with their subtitles included. - Refined the conversion engine for greater stability, ensuring every conversion runs smoothly from start to finish. Thank you for using WowHDR! Keep your feedback coming — it helps us make the app even better with every release.

Version 1.1

The developer, MARCELO PITZ ESPINDOLA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • MARCELO PITZ ESPINDOLA
    Size
    • 1.1 MB
    Category
    • Photo & Video
    Compatibility
    Requires macOS 15.6 or later.
    • Mac
      Requires macOS 15.6 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Inphovid
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.