GIF editing · 4 min read

How to blur the edges of an animated GIF

Quick answer

To blur the edges of a GIF, open Blur GIF, choose Edges under Apply to, set the edge width and blur strength, then click Blur GIF. The blur is strongest at the border and fades smoothly into a sharp centre on every frame. The animation and its timing are kept.

Animated GIF of a paper plane over a sunset landscape, with the edges of the frame softly blurred while the centre stays sharp.
Our example GIF with blurred edges: 22% edge width at 28 px strength.

Key takeaways

  • Edges mode blurs the border and fades it out towards a sharp centre.
  • Edge width sets how far in the blur reaches; strength sets how soft it gets.
  • It works on every frame, so the animation is kept intact.
  • Blurring adds new in-between colours, so expect a larger file. Ours roughly doubled.

How do you blur the edges of a GIF?

  1. Open Blur GIF

    Drop your GIF into Blur GIF. Still images work too.

  2. Choose Edges

    Set Effect to Blur, and Apply to to Edges.

  3. Set the edge width

    This is how far in from the border the blur reaches, from 5% to 45% of the GIF’s shorter side. Around 15–25% looks natural.

  4. Set the strength

    Higher values make the border softer. The preview updates as you adjust.

  5. Blur and download

    Click Blur GIF. Every frame gets the same soft border, and the timing is unchanged.

The GifRush Blur GIF tool with the Edges option selected under Apply to, an edge width of 22 percent and a blur strength of 28 px, with a preview showing the softened border.
Blur GIF in Edges mode, with the settings used for the GIF above.

What does blurring the edges do?

The same frame before and after: on the left the whole frame is sharp; on the right the borders are soft while the plane and sun in the centre stay sharp.
A real frame before and after Edges mode.

Soft edges pull attention towards the middle of the frame, a little like a camera’s shallow focus. They also hide clutter at the borders of screen recordings, and make a GIF sit more gently on a page. The blend uses a smooth curve, so there’s no visible line where the blur stops.

Blur, crop or vignette?

Three options: blur the edges, which keeps the full frame but softens it; crop, which removes the edges entirely; and darken the edges, a vignette, which GifRush can’t do on its own yet.
Three ways to deal with the edges of a GIF.

When do blurred edges work best?

Starting settings for Edges mode, by type of GIF
Type of GIFEdge widthStrengthWhy
Screen recording10–15%20–30 pxHides toolbars and clutter at the sides
Portrait or face20–30%15–25 pxKeeps attention on the person
Product shot15–20%10–20 pxA gentle studio-style softness
Landscape or scenery15–25%20–30 pxA dreamy, tilt-shift look

Avoid Edges mode when important detail sits near the border, such as captions or a subject that moves into the corners. Blur those GIFs with a selected area instead, or crop first so the action sits in the middle. If you’re adding a caption, blur first and caption last, so the text stays sharp.

Does blurring change the file size?

Usually it grows. A blur creates smooth gradients full of new in-between colours, and GIF compression handles those less well than flat areas. Our example went from 198 KB to 416 KB, about twice as large. If that’s a problem, compress the result or use a narrower edge width.

Blur is one of many edits you can make. See how to edit a GIF for the rest.

Frequently asked questions

How do I blur the edges of a GIF?

Open GifRush Blur GIF, choose Edges under Apply to, set the edge width and blur strength, then click Blur GIF. The blur fades into a sharp centre on every frame.

Will blurring the edges stop my GIF animating?

No. The blur is applied to every frame and the frame timing is unchanged, so the GIF animates exactly as before.

Can I make GIF edges fade to transparent?

Not smoothly. GIF transparency is on or off for each pixel, so soft fades need a format like APNG or WebP. Blurring the edges is the closest effect in a GIF.

Why did my GIF get bigger after blurring?

Blurring adds many new in-between colours, which GIF compresses less efficiently. Our example roughly doubled in size. Compress it afterwards if needed.

Can I pixelate the edges instead?

Yes. Choose Pixelate as the effect with the Edges option for a blocky border that fades into the centre.

Sources

  1. Graphics Interchange Format, Version 89a (W3C archive of the CompuServe specification)