Light Leak Video Effect

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Tip: paste a video file from clipboard (Ctrl/⌘+V).

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Settings are written to the URL as you change them. Nothing differs from the defaults yet.

Give a clip the look of light leaking onto film. Six looks set the colours, the edge the leak enters from and the style of the wash; two sliders set how strong the leak is and how worn the film looks; the leak breathes and drifts over the clip the way a real one would.

Looks

Each look is a colour trio, a placement and a style. Burns enter from an edge with hot streaks; hazes wash the frame evenly; the prism look adds rotated rainbow bands; the analog look leans on fade, grain and dust. The preset select applies the look with the intensity and finish it was tuned for, and the two sliders move from there.

Intensity and finish

Leak intensity scales the glows, streaks and orbs together. Film finish is the rest of the analog character: an S-curve fade with lifted shadows, luminance-masked grain, dust specks and a slight vignette, all applied before the leak so the leak sits on top of the film rather than under it.

Layout and motion

Leak layout is a number that lays out the glows, streaks and orbs; another number gives another arrangement with the same look. The arrangement stays fixed through the clip. On top of it the leak’s strength rises and falls by a few percent and its source wanders slightly, both derived from the source time, so the preview and the export match frame for frame.

Cost

The leak is composed at half resolution and screened over the full frame, so a 720p frame takes about a fifth of a second on a laptop core. Grain and dust run at full resolution and are the part that grows with the export size.

Frequently Asked Questions

What does the light leak video effect do?

It grades every frame toward faded film, screens a coloured leak over it from one edge, with streaks, lens orbs and, for the prism look, rainbow bands, then adds grain and dust. The leak's strength breathes and its position drifts a little over time, so it reads as light on film rather than a pasted overlay.

Is the leak the same on every frame?

The layout is: Leak layout picks where the glows and streaks sit, and that stays fixed through the clip. Only the brightness breathes and the source drifts slightly, both driven by the clip's time, so the preview and the export agree.

Which look should I start with?

Golden film burn for a warm edge leak, Soft sun haze for an even wash, Prism rainbow for colour bands, Disposable camera when grain and fade matter more than the leak itself. Each preset sets the strength and finish it was designed around.

What happens to the audio?

It is copied into the export unchanged when the container can hold its codec, and re-encoded when it cannot. A note under the export button says which happened.

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Light Leak Effect

Add light leaks, film burns, and sun flares to JPEG, PNG, and WebP images. Control leak intensity, grain, and dust, then download the result.

Film Grain Video

Add moving analog film grain to a video. Set grain amount, size, and softness; the grain is redrawn on every frame and its size scales with the output. Exports MP4 or WebM with the original soundtrack.

Expired Film Video Effect

Age a video like expired color film: shadows and highlights drift to opposite casts, blacks fog up, the emulsion mottles, and grain moves on every frame. Set degradation, crossover, fog, mottling, and grain. Exports MP4 or WebM with the original soundtrack.

Lens Flare Video Effect

Add a lens flare to a video: a hot core, a long halo, veiling glare across the frame, diffraction spikes, and aperture ghosts, all from a light source you place. Set position, intensity, halo size, and spikes. Exports MP4 or WebM with the original soundtrack.

Old Film Video Effect

Age a video like old film: faded sepia tones, flickering vertical scratches, dust specks, and worn edges, with the damage changing on every frame. Set age, scratches, dust, and edge wear. Exports MP4 or WebM with the original soundtrack.

Disposable Camera Video Effect

Give a video the look of a cheap point-and-shoot film camera: harsh flash bloom, faded warm print color, light leaks, vignette, and grain and dust that move on every frame. Set flash strength and film finish. Exports MP4 or WebM with the original soundtrack.

Pinhole Video Effect

Make a video look shot through a lensless pinhole camera: soft everywhere, steep light falloff toward the corners, faded blacks, and grain that moves on every frame. Set falloff, image circle, softness, grain, and fade. Exports MP4 or WebM with the original soundtrack.

Aerochrome Video Effect

Give a video the false-color infrared look of Kodak Aerochrome: green foliage turns red or magenta while skies stay blue, with film grain that moves on every frame. Set profile, intensity, foliage, and red bloom. Exports MP4 or WebM with the original soundtrack.

Film Halation Video Effect

Add red-orange film halation around the bright edges and lights in every video frame. Set halation amount, highlight threshold, halo spread, and red-orange bias. Exports MP4 or WebM with the original soundtrack.

Bleach Bypass Video Effect

Give a video the bleach bypass film look: desaturated color with a silver layer of hard contrast, as used on war films and gritty thrillers. Set bypass strength, silver density, color retention, and contrast. Exports MP4 or WebM with the original soundtrack.

Film Stock Video Emulator

Grade a video to one of seventeen named film stocks, including Portra 400, Kodachrome 64, Velvia 50, CineStill 800T, and Tri-X 400, with grain that moves on every frame and trims for exposure, contrast, grain, and halation. Exports MP4 or WebM with the original soundtrack.

Black Mist Video Filter

Add the look of a black pro-mist diffusion filter to a video: light sources bloom into a soft veil and blacks lift slightly. Set diffusion strength, veil spread, black lift, highlight bias, and warmth. Exports MP4 or WebM with the original soundtrack.