Video Brightness Editor

Adjust brightness, contrast, saturation, hue, temperature, sharpness and more — with a live real-time preview. Export your edited video in full quality, entirely in your browser.

100% Free
No Upload Required
Live Preview
8 Filter Controls
One-Click Presets

Drop your video here

or click to browse — MP4, MOV, WebM, AVI, MKV and more
MP4MOVWebMAVIMKVWMV+More
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Duration: --- Resolution: --- Size: ---
Live Preview
0:00 0:00
Adjustment Controls
Quick Presets
Brightness 100%
Contrast 100%
Saturation 100%
Hue Rotate 0°
Temperature 0
Blur 0px
Vignette 0%
Output Format:
Quality:
Applying filters & exporting... 0%
Rendering frames with CSS filter pipeline...
Export Complete!
Original
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Output
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Duration
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Format
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How It Works

Edit and export your video in three simple steps.

1

Upload Your Video

Drag and drop or click to browse. Supports MP4, MOV, WebM, AVI, MKV and any format your browser can decode.

2

Adjust Filters Live

Use the sliders for brightness, contrast, saturation, hue, temperature, blur and vignette. Preview updates in real-time on canvas. Try one-click presets for instant looks.

3

Export & Download

Click Export to re-render the full video with all your adjustments baked in using the Canvas filter pipeline. Download as WebM, MP4, or MKV.

Everything You Need

A fully featured video colour editor running in your browser.

8 Filter Controls

Brightness, contrast, saturation, hue rotation, colour temperature, blur, vignette — all adjustable independently with fine-grained sliders.

Real-Time Canvas Preview

Every slider movement instantly updates the canvas preview using CSS filters. See exactly what your exported video will look like before rendering.

9 One-Click Presets

Vivid, Cinema, Cool, Warm, Fade, Black & White, Night, Golden Hour, and Sharp. Apply any look instantly, then fine-tune with sliders.

Before / After Compare

Toggle between the original and edited preview with one click. Instantly compare your adjustments against the unedited source frame.

Snapshot Any Frame

Download any single frame as a PNG image with your current filter settings applied — useful for thumbnails, previews, or reference images.

100% Private

Your video never leaves your device. All filter processing uses the HTML5 Canvas 2D context filter property — entirely client-side, zero server involvement.

Frequently Asked Questions

How do I adjust brightness in a video?
Upload your video, then drag the Brightness slider right to increase brightness or left to darken. The canvas preview updates instantly. When satisfied, click Export Edited Video to render the full video with the adjustment applied to every frame.
What is the difference between brightness and contrast?
Brightness controls the overall lightness of every pixel uniformly. Contrast controls the difference between the darkest and lightest parts — increasing contrast makes darks darker and lights lighter, which gives the image more punch and depth.
What does saturation do?
Saturation controls colour intensity. At 0% the video is completely black and white. At 100% colours are at their natural level. Above 100% colours become more vivid and punchy. It is useful for making dull, flat footage look more vibrant.
Is my video uploaded to a server?
No. All filter processing and rendering uses the HTML5 Canvas 2D context running entirely in your browser. Your video file never leaves your device at any stage.
How does the temperature slider work?
The temperature slider applies a colour overlay to simulate warm (orange tones) or cool (blue tones) white balance. Moving right warms the image, moving left cools it. This is useful for correcting footage shot in the wrong white balance mode or for stylistic effect.
Can I export a single frame as an image?
Yes. Scrub to any moment in the video using the timeline, set your filters, then click the Snapshot Frame button. The current canvas frame — with all filters applied — is downloaded as a PNG image file.

Free Online Video Brightness Editor — Adjust Colour & Filters in Browser

Our free online video brightness editor lets you adjust brightness, contrast, saturation, hue, colour temperature, blur, and vignette on any video — entirely in your browser. No software to install, no uploads, completely private.

How CSS Filters Are Applied to Video

The tool plays your video through a hidden HTML5 video element. Each frame is drawn onto a Canvas element with the CSS filter string set on the 2D context. Filters like brightness(), contrast(), saturate(), hue-rotate(), and blur() are standard CSS filter functions supported in all modern browsers. For temperature and vignette effects, a semi-transparent colour overlay is composited on top of the frame using the Canvas globalCompositeOperation. The filtered canvas stream is then fed into a MediaRecorder to produce the output video.

Common Use Cases

Brightening dark or underexposed footage, fixing flat drone videos with low contrast, desaturating footage for a cinematic look, adding a warm golden-hour tint, creating a cool moody blue grade, applying vignette for social media reels, and blurring backgrounds are all common adjustments made with this tool.

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