How to hide faces, license plates and personal details in a video

List everything that could identify someone

Before touching the file, watch the video once and write down everything that could identify a person or a place: faces, license plates, street names, house numbers, documents on a table, screens, badges, name tags and voices. Remember that sound identifies people too. Decide what truly has to disappear and what can stay. Use Create video contact sheet to see the whole recording at once, with timestamps, so you can note when each item appears and where it sits in the frame. This list becomes the checklist for your review at the end.

Cover a fixed area

Blur or hide part of a video covers one rectangle that does not move during the whole recording. You define it as percentages from the top-left corner: distance from the left, distance from the top, width and height. For a fixed camera, a number plate on a parked car or a document on a desk, that is ideal. The tool does not follow moving subjects and does not detect faces, so a person walking across the frame will leave the area. If the sensitive item moves, split the video into segments with Trim video and process each one separately.

Choose blur, pixelation or black according to the risk

Blur and pixelation reduce detail, and a stronger setting reduces more. They are fine for a casual background, but they may leave a short text or a distinctive shape recognizable, especially when it fills a large part of the picture. Covering with black is the safest choice for license plates, documents, screens and anything where being identified has consequences. Check a frame at the largest size you can, not as a thumbnail. In the 480 by 270 pixel sample, an area at 35 percent, 35 percent with a size of 30 percent by 30 percent covers 144 by 81 pixels.

480 × 270 · 35 % · 35 % · 30 % × 30 %
144 × 81 px

Crop out what should not appear and remove the sound

If the sensitive element sits near an edge, Crop video may be simpler than hiding it: the edge disappears from the result and the rest is kept. Cropping changes the frame, so check that the subject remains correctly framed throughout. If voices, names or a conversation can identify someone, Remove audio from video produces a copy without the audio track, keeping the picture. Combine steps carefully: process one change, inspect the result and then apply the next to that copy, never to the original, so you can always return to the unmodified recording.

Review the result frame by frame

Play the finished copy completely and then create a contact sheet from it to scan every moment quickly. Look at the beginning and the end, camera movements and the moments from your list. If anything is visible, return to the previous copy and adjust the area. Keep the limits in mind: a modified video is not an anonymous video if the context, the clothing or the background still identify someone. Do not post until you are comfortable with every frame, and keep the original somewhere private. Processing stays on your device, but publishing is your decision.