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How to blur a video online (free, no upload)

Trim a clip, mark Blur In and Blur Out, cover a region, download MP4. Privacy blur, not cinematic bokeh.

Screenshot or photo being edited for privacy
Photo by Unsplash on Unsplash

You need to blur a video before you post it, attach it to a ticket, or send it in chat. The clip might show a face, a name badge, an inbox, or a license plate. BlurThis covers a region in the clip for privacy. It is not cinematic background bokeh or a CapCut effect.

How to blur a video online free

  1. Open the video blur tool and choose your clip (or use the Video tab on the homepage).
  2. Trim to the seconds you will share. Export is capped at 90 seconds.
  3. At the first frame the secret is visible, press Blur In and drag a box over it.
  4. Scrub to the last frame you need covered and press Blur Out.
  5. Download MP4 or WebM. Post the export, not the camera roll original.

How to blur out faces in a video

Faces need a box that follows the head, or a second Blur In / Blur Out segment when the person moves. Oval boxes waste less blur on the background. Step-by-step for faces: blur a face in a video online free.

Blur background video vs privacy blur

Search results mix two jobs. Background blur video often means soft bokeh behind a talking head (Zoom, CapCut, phone camera). Privacy blur means hiding a readable region: a plate, a screen, a name. BlurThis does the second job. For live call background blur, use your meeting app’s built-in setting: Google Meet background blur.

Deeper guides

Phone clips

iPhone HEVC files work best in Safari or after exporting as H.264 MP4. If the clip fails to open, re-export from Photos as “Most Compatible.”