Video Blur & Censor Tool

Free online tool to blur faces, license plates, addresses, screens or any sensitive region of a video before posting it. Click "Detect Faces" for one-tap automatic face blurring across every frame, or draw your own rectangle / ellipse regions and pick Gaussian blur, pixelation, or a solid colour fill. When your subject moves, turn on "Make blur follow" (or Auto-track) and the blur tracks it across the frame — set a few keyframes and it glides between them. Common uses: blur a child's face in a family vlog before posting to TikTok or YouTube, hide a number plate in a dashcam clip before sharing on Twitter, redact a confidential screen in a product-demo recording, censor bystanders in street-photography footage. Mute or bleep audio segments for full content redaction. Exports MP4 (H.264) or WebM (VP9) up to 500 MB.

How to Blur a Video Online

1
Load your video

Drag and drop or click to select. Supports MP4, WebM, MOV, AVI, MKV up to 500 MB — covers everything modern phones and screen-recorders produce.

2
Draw blur regions

Select the Rectangle or Ellipse tool and draw on the video. Or click "Detect Faces" to let AI find faces automatically.

3
Customize each region

Choose blur type (Gaussian, Pixelate, Solid), adjust intensity and edge softness. Set the time range when each blur should be visible.

4
Make the blur follow movement

If your subject moves, click "Make blur follow" (or "Auto-track this object"), then scrub the video and drag the box where the subject goes. Each move records a keyframe and the blur glides between them.

5
Export and download

Click Export to render the video with blur applied. Choose MP4 or WebM format and quality level. Download the result instantly.

Blur faces, pixelate areas, and censor sensitive content in your videos — free

Drop your video here or browse
MP4, WEBM, MOV, MKV, AVI, WMV, FLV, 3GP
Upload a file to start
Select Rectangle or Ellipse tool and draw on the video
0:00 / 0:00
Timeline Click the track to seek; yellow dots are manual keyframes
Space — play/pause, ←/→ — seek, K — add keyframe, , / . — prev/next keyframe, Del — delete region, Ctrl+Z/Y — undo/redo
Blur Regions
No blur regions yet. Draw on the video or use Detect Faces.
Blur Type
Intensity
50
Edge Softness
10
Visible Time
—
Subject moving? Turn this on, then move through the video and drag the box — it remembers every position and the blur follows.
Position the box on the object, then auto-track follows it forward and fills in keyframes. Fine-tune any keyframe by dragging.
Audio Censoring
Exporting video...

Key Features

One-click face detection — scans every frame, tracks each face across the timeline, and creates an elliptical blur region per person automatically. Handles multiple faces, profiles, partial occlusions
3 blur types (Gaussian, pixelate, solid) with rectangle/ellipse shapes and adjustable intensity and edge softness
Follow moving subjects — auto-track any object or set keyframes, and the blur tracks it frame to frame
Per-region time control with multiple intervals — one blur can appear in several disjoint parts of the timeline
Audio censoring: mute or a real 1 kHz bleep tone over any segment for complete content redaction

Frequently Asked Questions

Is this tool really free?

Yes, completely free. No watermarks, no account required, no file size limits beyond browser memory.

Can it automatically detect and blur faces?

Yes. Click "Detect Faces" to scan the current frame, or "Track Faces" to walk every frame of the video — each detected face becomes its own elliptical region that follows the person across the timeline. Works on frontal and three-quarter faces; very small faces (less than ~40 pixels wide), heavy profiles or masked faces may be missed, in which case draw a rectangle manually and the rest of the timeline will use the same region.

My subject moves — how do I keep the blur on them?

Select the region and click "Make blur follow" (or "Auto-track this object"). Then scrub the video and drag the box where the subject goes — each move records a keyframe, shown as a yellow dot on the timeline, and the blur glides smoothly between keyframes. Auto-track will follow the object for you; you can then fine-tune any keyframe by dragging, or press K to add one at the current moment.

How many blur regions can I add?

Up to 10 independent blur regions. Each can have its own blur type, intensity, and time range.

Can I blur different areas at different times?

Yes. Each blur region has its own start and end time. You can set regions to appear only during specific parts of the video.

What about audio — can I censor that too?

Yes. Use the Audio Censoring section to add mute segments for any time range in the video.

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Who is this tool for?
🎬 Video Creators
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