Blur License Plate in Image Online
Blur License Plate in Image with manual region selection. Free, offline, client-side - your images never leave your browser.
Click and drag over each plate, adjust the blur, download. Runs entirely in your browser — no AI service, no uploads, no tracking.
How to Use Blur License Plate in Image Online
- Choose your image. Click "Choose an image" and pick a JPG, PNG, WebP, or GIF from your device. The photo loads onto the canvas below - nothing is uploaded anywhere.
- Draw a rectangle over each plate. Click and drag on the image to mark each license plate you want hidden. You can draw as many rectangles as you need; the outline turns solid blue when the region is saved.
- Adjust the blur intensity. Use the slider (2-30 pixels) to set how heavy the blur should be. 10-15 px is enough to make plate numbers unreadable; 20+ is privacy-grade for publication.
- Apply the blur. Click "Apply Blur" or press Ctrl+Enter. The canvas updates to show the blurred version. Areas outside your rectangles stay pixel-perfect.
- Undo or clear if needed. "Undo region" removes the most recent rectangle (Ctrl+Z also works). "Clear regions" removes all of them and restores the untouched original.
- Save or share. Click "Download PNG" to save the blurred image. Or click "Copy image" to put the PNG onto your clipboard (supported in Chrome, Edge, Firefox - Safari users should use Download).
- Re-upload to start over. Choosing a new image at any time resets the canvas and clears all regions automatically.
Frequently Asked Questions
Is my photo uploaded anywhere?
No. Everything happens in your browser using the Canvas API. The image is never sent to any server, never stored in a database, and never passed to any AI or OCR service. You can disconnect from the internet after the page loads and the tool still works.
Why is plate selection manual instead of automatic?
Automatic plate detection requires either a large machine-learning model downloaded from a remote CDN or a cloud API that sees your photo. Both introduce privacy risks. Manual selection keeps the tool tiny, works offline, and guarantees your image never leaves the device.
Can I blur more than one license plate?
Yes. Draw a separate rectangle over each plate you want hidden – front and back, multiple vehicles in a parking shot, anything visible. Every rectangle you add is remembered, and “Apply Blur” processes all of them at once.
What image formats are supported?
Any format your browser can decode: JPG, PNG, WebP, GIF, and usually AVIF and HEIC on modern devices. The output is always a PNG to keep the blurred regions crisp.
Is the blur reversible?
Once you download or copy the blurred PNG, the blur is permanent – there is no mathematical way to recover the original plate from a Gaussian blur. Keep a copy of the original file if you might want it later.
Does it work on phones and tablets?
Yes. The region drawing uses Pointer Events, which handle mouse, finger, and stylus input identically. On small screens the buttons stack vertically below 768 px wide for easier tapping.
Is this tool free?
Yes. Unlimited images, no signup, no watermarks, no paywalls, no ads. The only thing we ask is that you bookmark it if it was useful.
Can I blur other things besides plates?
Yes – the tool blurs whatever rectangle you draw. You can use it to hide faces, tattoos, signatures, screen contents, or any sensitive detail in the frame. It is a general-purpose privacy tool, not just for plates.
What blur intensity hides a plate properly?
10-15 px usually makes characters unreadable on typical phone photos. 20-30 px fully dissolves the characters so OCR cannot recover them. Err on the stronger side before publishing – subtle blur can sometimes be sharpened back up.
Why blur license plates before sharing a photo?
A visible plate lets anyone cross-reference the vehicle to the registered owner, location, or movements. Blurring is the standard practice for news media, real estate listings, car-sale ads, and insurance claim photos, and it is often a GDPR requirement in the EU.