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Video Brightness & Contrast Enhancer

Adjust video brightness, contrast, saturation, and gamma in your browser using FFmpeg WebAssembly. Real-time preview player, one-click color grading presets, and zero server uploads.

Live

How to use this tool

  1. Upload an MP4, WebM, MOV, or AVI video into the color enhancement workspace.

  2. Adjust Brightness, Contrast, Saturation, and Gamma using the precision sliders or click a preset filter (Cinematic, Vivid, Noir, Brighten).

  3. Preview the color adjustments live directly on the HTML5 video player.

  4. Click Enhance Video to render the color graded video via browser WebAssembly.

  5. Preview the final transcoded video and download the enhanced file directly to your disk.

Frequently asked questions

Quick answers about file privacy, processing modes, formats, and device support.

The enhancer processes your video locally using FFmpeg WebAssembly with the hardware-accelerated eq filter. Adjustments to luminance, contrast curve, chrominance saturation, and nonlinear gamma curves are rendered without sending any data over the Internet.
Yes! The interactive video player applies live hardware-accelerated CSS filters in real-time as you drag the sliders or select presets, so you can preview your look before rendering.
Brightness shifts overall luminance (-1.0 to 1.0). Contrast stretches or compresses the tonal range (0.2 to 2.0). Saturation controls color intensity (0.0 for black & white up to 3.0 for ultra-vivid). Gamma applies nonlinear midrange exposure correction (0.1 to 10.0) without blowing out highlights.
Original audio tracks are preserved with direct stream copy whenever possible. Video frames are re-encoded with high-fidelity H.264 CRF 23 encoding and 4:2:0 chroma subsampling for universal playback.
100% private. All processing executes inside your browser's WebAssembly sandbox. Nothing is ever uploaded to or stored on any server.

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