Sharpen Video

Often followed by + Contrast

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MP4, MOV, WebM, or MKV

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.

Add crispness to soft footage with an unsharp mask: each frame is blurred, the difference from the original is measured, and that edge detail is added back at a higher level.

Amount and radius

Radius sets how wide the edge boost is. Small radii around 1 px bring out fine texture such as hair and fabric; larger radii add broad clarity. Amount scales the effect. Use a high amount with a small radius, or a low amount with a large one.

Sharpening video noise

Sharpening amplifies grain and compression blocks along with detail, and noise that changes every frame starts to sparkle. Keep Amount moderate on low-light or heavily compressed clips. Sharpening only brightness, which the step does by default, avoids colored fringes.

Export size

Sharpened frames contain more fine detail, which costs the encoder more bits. At the same bitrate the export can show more compression than an unsharpened one; export at source size rather than scaling down after sharpening.

Frequently Asked Questions

Can this fix an out-of-focus video?

No. Sharpening raises contrast at edges that already exist. Detail that the lens never resolved cannot be recovered; a mildly soft clip looks crisper, a badly blurred one gains halos.

Why is Radius measured on a 720p frame?

The radius is set in pixels on a frame with a 720 px short edge and scaled to the frame being processed, so a 1080p export is sharpened with the same proportions as the preview.

What does Halo Limit do?

It caps how far a pixel may move away from its neighbours, which stops bright and dark outlines from forming along high-contrast edges.

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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Sharpen Effect

Sharpen an image with unsharp mask controls. Adjust amount, radius, threshold, halo limiting, and luminance-only sharpening for clean detail.

HDR Video Effect

Give every frame of a video the tone-mapped HDR look: lifted shadows, compressed highlights, and boosted local contrast. Set local detail, shadow recovery, highlight compression, and saturation. Exports MP4 or WebM with the original soundtrack.

Blur Video

Blur every frame of a video with a Gaussian blur, and mix the blurred frame back over the sharp one to soften rather than erase detail. The blur scales with the output size, so the preview matches the export. Exports MP4 or WebM with the original soundtrack.

Pixelate Video

Break every frame of a video into solid blocks of color, optionally limited to a retro palette with dithering. Pixel size scales with the output, so the preview matches the export. Exports MP4 or WebM with the original soundtrack.

Glow Video Effect

Make the bright parts of every video frame glow: bloom around lights and highlights with an optional color tint. Set strength, radius, threshold, and glow color; the radius scales with the output size. Exports MP4 or WebM with the original soundtrack.

Neon Outline Video Effect

Trace the edges in every frame of a video as glowing neon tubes over a darkened picture. Set neon color, glow radius, intensity, and background dim; the glow scales with the output size. Exports MP4 or WebM with the original soundtrack.

Oil Painting Video Effect

Turn every frame of a video into an oil painting with an edge-preserving Kuwahara brush filter, stronger color, and canvas texture. Set brush size, vibrance, and canvas texture; brush size scales with the output. Exports MP4 or WebM with the original soundtrack.

Emboss Video Effect

Turn every frame of a video into a lit relief, as if pressed into metal or paper. Set depth, light angle, blend, and whether color is kept; depth scales with the output size. Exports MP4 or WebM with the original soundtrack.

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.

Mosaic Video Effect

Tile every frame of a video into a mosaic of square or organic stone tiles with grout and bevelled edges. Set tile style, tile size, grout thickness, and bevel; sizes scale with the output. Exports MP4 or WebM with the original soundtrack.

Orton Video Effect

Screen a blurred, brightened copy of every video frame over the sharp original for a dreamy glow that keeps detail. Set blur radius, glow amount, soft layer exposure, saturation, and shadow protection. Exports MP4 or WebM with the original soundtrack.

Pop Art Video Effect

Reduce every frame of a video to four flat pop art colors with halftone dots and bold outlines. Set exposure, contrast, halftone dot size, and outline strength; the dots scale with the output. Exports MP4 or WebM with the original soundtrack.