Blur part of an image — pixelate or gaussian blur any area
Blurring specific areas of an image is an essential privacy protection step: hiding faces in photos shared publicly, redacting names and addresses in screenshots, masking account numbers in financial document screenshots, and obscuring background details before sharing imagery online or in documentation. This browser-based image blur tool lets you draw rectangular selection areas over any uploaded image and apply Gaussian blur at adjustable intensity. Unlike many online tools, no image data is ever uploaded to a server — all blurring runs locally using the Canvas API, making it safe to use on confidential screenshots, medical images, and personal photographs. Consider a few situations where this tool proves indispensable. A customer support agent capturing a screen recording of a bug report may need to redact a customer's email address and billing details before escalating the ticket to a third-party vendor. A journalist publishing a crowd photograph needs to quickly obscure the faces of bystanders who did not consent to appearing in print. A developer writing internal documentation for a new dashboard feature wants to share a screenshot in a public GitHub issue but must first hide the test account's sensitive API keys and personal data visible in the interface. In each of these cases, a fast, no-install blur tool that handles the task directly in the browser removes friction and reduces the risk of accidentally sharing unredacted files. Social media managers, HR professionals handling employee data, healthcare workers screenshotting patient-facing systems, and security researchers sharing proof-of-concept screenshots all benefit enormously from a tool like this. The adjustable blur intensity lets you dial in exactly how much obscuring is needed — from a subtle softening that preserves context to a heavy blur that makes text completely unreadable. Because every operation happens on your own device using the browser's built-in Canvas API, sensitive images never leave your machine, giving you full confidence when working with regulated or confidential content.
Upload an image to blur
PNG, JPG, GIF
Selective blur — Draw a box over just the area you want to blur — faces, licence plates, text, or backgrounds.
Two blur types — Gaussian blur for a smooth natural effect, or pixelate for a mosaic/censor effect.
Adjustable strength — Control the blur intensity from subtle to completely obscured.
Non-destructive preview — Preview the blur before downloading — readjust if needed.