How do I hide other kids' faces in a video before posting it?

Cover every child's face you do not have the parents' permission for, and do it on your phone rather than in a cloud editor. Anonimo finds the faces, groups them by child, and lets you keep your own child visible with one tap; an emoji cover looks friendlier than a blur on a birthday video. Then watch the export once before you post.

Why bother

A school play, a football match or a party is full of other people's children. Many parents have not agreed to their child appearing on a public account, schools and clubs often ask for it in their rules, and a child's face online stays there. Covering the other faces lets you share the moment without sharing them.

With Anonimo

Open the video in Anonimo. It finds every face and groups them by child, so a child who runs through the frame five times is one person, not five faces.
Tap your own child so they stay visible. Everyone else is covered in every frame.
Pick the emoji cover: the smiley is free, and children's videos look less like surveillance footage with it. Pixelation is free too; the soft blur is Pro.
Export and check the result once, especially where children turn away or stand far back.

Why on the device

A video full of children's faces is exactly the kind of file you do not want sitting on a server you do not control. Anonimo processes it on the iPhone and has no upload code; the App Store privacy label is "Data Not Collected". Cloud editors and YouTube's blur tool need the unblurred original uploaded first.

If you want this done automatically on your iPhone, Anonimo finds every face in a video, groups them by person, and blurs everyone except the people you pick. Nothing leaves the phone.

Trade-offs

Emoji covers are friendly but large; in a tight group they can overlap. Pixelation covers more precisely.
A child who faces away is covered by a head estimate that can sit a little off; glance at those moments.
Faces are not the only identifier: a name on a shirt or a shouted name in the audio still identifies a child.

Questions

Can I keep my own child visible and blur the rest?

Yes. Anonimo groups the faces by person; tap your child once and everyone else is covered for the whole video.

Is it free?

Videos up to 30 seconds export free at 720p with a small watermark, with pixelation or the smiley emoji. Longer clips, full resolution, blur and the full emoji set are Pro.

Do I need the other parents' consent if the faces are blurred?

It depends on where you are and on the school's or club's rules; our country pages on filming people link the primary sources. Blurring removes the main identifier, which is what most rules care about, but it is not a substitute for asking when you can.