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Censor photo (blur, pixelate) online

Censor image areas online with blur censor, pixelate face, or solid redaction. Drag the mask, preview instantly, and download PNG in your browser.

What is photo censoring?

Photo censoring hides part of an image while leaving the rest visible, common for privacy, anonymity, or compliance. This tool acts as an image censor where you draw a rectangle or ellipse over any zone, then apply pixelate blocks, blur censor, or solid color inside that mask. Use it to pixelate faces, hide license plates, or redact text. Upload a photo, position the selection, tune block size or blur radius, preview beside the original, and download PNG in your browser.

Photo censor features

Regional blur censor, pixelate, and solid fill in the browser.

  • Draggable censor zone

    Move and resize the mask with handles—same interaction as crop.

  • Rectangle or ellipse

    Pick the mask shape that fits faces, plates, or UI elements.

  • Three methods

    Pixelate, blur, or solid color for the selected area only.

  • Method controls

    Block size for pixelate, radius for blur, hex color for solid fill.

  • Live preview

    Output updates when you move the zone or change options.

  • PNG download

    Save as censor-photo.png.

How to blur or pixelate part of a photo

Steps for online image censoring with blur or pixelate.

  1. Upload your image

    Drop or click in the input panel (15 MB max).

  2. Position the censor box

    Drag over the face, plate, or text you need to hide.

  3. Pick shape and method

    Try pixelate for plates, blur for faces, or solid black for redaction.

  4. Download PNG

    Save the censored image for sharing or publishing.

Tips for censored photos

Better censored image and blur censor results.
  • 01

    Oversize the mask slightly

    Include a small margin so edges of faces or text do not peek through.

  • 02

    Pixelate for OCR resistance

    Larger block sizes make small text harder to recover than light blur.

  • 03

    Blur for natural scenes

    Soft blur can look less harsh on faces in casual photos.

  • 04

    Solid for legal redaction

    Flat black or white blocks signal deliberate removal on documents.

  • 05

    Check the preview zoomed

    Inspect corners of the ellipse or rectangle before download.

  • 06

    Keep the original

    Archive the uncensored file separately if you may need it later.

Photo Censoring Tools Compared — Which One Fits Your Workflow

How this free censor photo tool stacks up against other popular online options for blurring and pixelating image areas.

  1. Fotor.com

    AI-powered blur brush for censoring faces and sensitive info. Pro required for full features.

  2. BlurPhoto.net

    AI background blur and face detection. More focused on portrait blur than precision censoring.

  3. IDPhotoDIY.com

    Blur brush with mosaic, Gaussian, and motion blur types. Brush-based for manual pixelation.

  4. ImageOnline.co

    Pixelate and blur pages but no combined censor-specific tool with both blur and pixelate.

  5. Censor Photo Blur Pixelate

    Both blur and pixelate modes in one tool. Brush-based application with adjustable size and intensity. Selective area application with real-time preview. All processing in browser.

When to censor photos

Typical uses for regional blur and pixelate.

  • License plates

    Pixelate plates in street photography before posting online.

  • Faces and privacy

    Blur bystanders or children when consent is unclear.

  • Screenshots

    Hide emails, names, or account numbers in UI captures.

  • Social posts

    Redact sensitive details while keeping the rest of the scene visible.

  • Documents

    Solid-color blocks for ID numbers on scanned forms.

  • Quick anonymization

    One zone at a time without a full desktop editor.

Why use this censor tool

Benefits of browser-based regional censoring.

  • Zone-only edits

    The uncensored background stays sharp—unlike whole-image filters.

  • Private

    Images stay on your device.

  • Free

    Unlimited previews and downloads.

  • No install

    Works in modern browsers with Canvas 2D.

  • Flexible masks

    Rectangle and ellipse cover most redaction shapes.

  • Honest scope

    Single-zone censor per export—not batch or multi-mask editing.

Technical details

How regional censoring works here.
Selection
Source-pixel rectangle with display scaling via shared crop selector.
Pixelate
Downscale-upscale nearest-neighbor on the zone only.
Blur
Canvas filter blur on padded region extract.
Solid
Flat fill composited through rectangle or ellipse clip.
Input limits
15 MB; longest edge 8192 px.
Browser support
Chromium, Firefox, Safari with Canvas 2D and CSS filters.

Sources & References

Authoritative references on pixelization for censorship, image editing techniques, and the Canvas rendering technology this tool uses.
  • “Pixelization is a technique used in image processing to obscure parts of an image.”
    — Wikipedia — Pixelization

    Pixelization in image processing: Pixelization is commonly used for censoring sensitive details like faces, license plates, and text. This tool implements pixelation (via nearest-neighbor downscale/upscale) as one of its regional censor methods. en.wikipedia.org/wiki/Pixelization

  • “The Canvas API provides a means for drawing graphics via JavaScript and the HTML canvas element.”
    — MDN Web Docs — Canvas API

    Canvas API (client-side pixel manipulation): This tool uses Canvas 2D to extract, process, and composite censored regions — pixelation via downscale/upscale, blur via CSS filter, and solid color fill — all in your browser without server uploads. developer.mozilla.org/en-US/docs/Web/API/Canvas_API

  • “PNG supports lossless data compression, making it useful for storing graphics that need to be edited repeatedly without losing quality.”
    — W3C — PNG Specification (overview)

    PNG image format: PNG preserves the sharp edges of pixelated regions and the uncensored areas at full quality, making it the ideal output format for censored images. w3.org/TR/PNG/

  • “Image editing encompasses the processes of altering images, whether they are digital photographs, traditional photo-chemical photographs, or illustrations.”
    — Wikipedia — Image editing

    Image editing fundamentals: Regional censoring is a common image editing task. This tool applies localized modifications — pixelation, blur, or solid fill — while keeping the rest of the image unchanged. en.wikipedia.org/wiki/Image_editing

Frequently Asked Questions

Quick answers about this tool—open a question to read more.