How to blur a number plate or license plate in a photo
Draw a box over the plate, pick a cover style, export. It takes about ten seconds per photo on an iPhone, and works the same on a dashcam clip as on a single shot of a parked car.
How to blur a number plate, step by step
Same steps for a licence plate and a number plate — the term differs by country, the job doesn't.
- Import the photo or video. Deface reads it straight from your photo library. Nothing is uploaded anywhere.
- Add a manual region. Draw a box over the plate. Precision size controls matter here, because a plate is small relative to the rest of the frame and a rough drag usually leaves an edge showing.
- Pick a cover style. Solid colour is the cleanest for a plate. Pixelate and blur also work if you want it less conspicuous.
- For video, scrub through the clip. The region persists across frames, but if the car moves relative to the camera, reposition it so it stays on the plate.
- Export. The plate stays covered, and the file's EXIF, GPS and timestamp data is stripped on the way out.
Size the box bigger than the plate looks. A plate photographed at an angle, or one catching glare, extends further across the frame than the eye reads it as — and a rectangle sized to the visible white area often clips a character at one end. Overlap onto the bumper. On video, check the position on a few frames spread through the clip rather than trusting a single placement, because a plate that drifts out from under the box for even a few frames is a plate that has been published.
Why automatic face detection skips the plate
Face detection looks for faces. That is what it is trained to find, and a number plate has no facial structure for a detector to lock onto, so it stays invisible to that kind of scan no matter how good the detector is. This is true of every face-blurring tool, not just this one.
That is what the manual region tool is for: anything in the frame you want treated the same way as a detected face, but that isn't a face. Draw it, and it exports with the same coverage. In a photo that has both — a person standing next to their car — automatic detection handles the face and a manual region handles the plate, in the same pass.
When people actually need this
Nearly all of it comes down to publishing a photo somewhere public that happens to have a vehicle in it.
- Selling a car. Listing photos on a marketplace show the plate from several angles. The plate plus a few exterior shots is enough for a stranger to look up the vehicle's history, and in some countries its registered keeper.
- Dashcam footage. Clips posted to social media or sent to an insurer routinely catch plates belonging to people with nothing to do with the incident.
- Property and driveway photos. A house listing or a photo of a front door often has a parked car in frame, tying a specific vehicle to a specific address.
- Reporting bad parking or driving. Posting the photo publicly is a different act from sending it to the relevant authority, and the plate usually only needs to be visible in the second one.
- Photos of your own car you just want to post. A plate is a persistent public identifier for a thing that sits outside your house.
Which cover style to use on a plate
| Style | How it reads | Best for |
|---|---|---|
| Solid colour | Obviously deliberate — no one wonders what was there | Listings and anything official-looking |
| Pixelate | Clearly censored, keeps the shape of the plate | Dashcam clips and social posts |
| Blur | Softest, least visually disruptive | Photos where the plate isn't the subject |
| Emoji | Playful, and unambiguous that it was covered on purpose | Casual posts |
Cover it properly, not lightly
A plate is short, high-contrast and drawn from a known character set, which makes it a much easier thing to guess at than a face. A light blur that leaves the character shapes faintly legible is not much of a cover — someone who knows what a plate looks like can often read through it, and enhancement tools are built for exactly this. Solid colour avoids the question entirely, which is why it is the sensible default here even though blur is the more common instinct.
The same logic applies to anything else in the frame that identifies a specific vehicle or address rather than a person. A VIN plate through the windshield, a dealer sticker, a house number, a parking permit in the window — all of them are missed by face detection for the same reason a plate is, and all of them take the same manual region to cover. Faces in the same photo are handled automatically; see blurring faces in a video on iPhone if the clip has both.
Frequently asked questions
How do I blur a number plate in a photo on my iPhone?
Import the photo into Deface, draw a manual region over the plate, choose solid colour, blur or pixelate, and export. It runs on the device, so the photo is never uploaded, and it works the same offline.
Is there an app that blurs number plates automatically?
Automatic detection in Deface, and in face-blurring tools generally, finds faces rather than plates — a plate has no facial features to detect. Covering one means drawing a region over it yourself, which takes a few seconds per photo.
Can I blur license plates in bulk?
Deface works one photo or video at a time. Each plate needs its own region drawn over it, so a large batch of listing photos is a few seconds each rather than a single pass over the whole set.
Can I blur a number plate in a dashcam video, not just a photo?
Yes. A manual region persists across the video's frames, so you position it once. If the car moves relative to the camera, scrub through and reposition it so the plate stays covered for the whole clip.
Should I blur or block out a licence plate?
Block it out with solid colour if it matters. Plate characters are short and come from a known set, so a soft blur can leave them partly legible. Solid colour removes the information rather than obscuring it.
Does blurring the plate remove the photo's location data?
No — covering pixels does nothing to the file's metadata, and a driveway photo's GPS coordinates can be as identifying as the plate. Deface strips EXIF, GPS and timestamp data from every export separately. See removing location data from a photo.
Cover a plate in about ten seconds.
Free to try. One-time Pro unlock for unlimited, watermark-free exports.
