Unblur Image Online Free

Fix blurry photos instantly. Sharpen soft focus, restore clarity, and enhance detail — all in your browser.

Runs in your browser — images never leave your device

Drop your blurry photo here or click to upload

JPG, PNG, WebP, GIF, BMP · No size limit

Strength 0

Radius 1

Dimensions: --

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How It Works

Upload Your Photo

Drop any blurry or soft image — photos, screenshots, scans. Any format and size works.

Choose Sharpening Level

Pick a preset (Light, Medium, Heavy) or fine-tune the strength and radius sliders for precise control.

Download

Toggle between original and sharpened to compare, then download as PNG or JPG at full resolution.

How to Unblur an Image

Unblurring an image works by detecting edges in the photo and amplifying their contrast, making blurry details appear sharper and more defined.

Every digital photo contains edges — boundaries where brightness or color changes. When a photo is blurry, these edges become gradual transitions instead of crisp lines. Sharpening reverses this by identifying where the transitions occur and making them steeper, which the human eye perceives as increased sharpness and clarity.

Unsharp Mask Technique

Despite its counterintuitive name, unsharp masking is the gold standard for image sharpening used by professionals in Photoshop and Lightroom. The technique creates a slightly blurred copy of your image, then compares it to the original. The difference between the two reveals the edges. These detected edges are then amplified and blended back, producing a sharper result without adding noise to smooth areas like sky or skin.

Strength vs. Radius

Strength controls how much the edges are amplified — think of it as the volume knob for sharpening. Radius controls the size of the area used to detect edges. A small radius (1px) targets fine details like text, hair, and fabric textures. A larger radius (2-3px) sharpens broader structures like facial features, building edges, and product outlines. For most photos, a radius of 1-2px with moderate strength gives the best results.

Tips for Best Results

Start with the Light preset and increase gradually. Over-sharpening creates visible halos — bright outlines around dark objects. If you see halos, reduce the strength. For portraits, use light sharpening to avoid emphasizing skin texture. For landscapes and architecture, medium to heavy sharpening brings out stunning detail.

Unblur Image Use Cases

Fix Blurry Phone Photos

Smartphone cameras sometimes produce soft images due to hand shake, slow shutter speeds, or missed autofocus. Medium sharpening can significantly improve slightly blurry phone photos, making them crisp enough for social media and printing.

Sharpen Scanned Documents

Scanned documents and PDFs converted to images often look soft and fuzzy. Heavy sharpening makes text dramatically more legible, improving readability for archives, OCR processing, and digital filing.

Improve Product Photos

E-commerce product images need to be sharp to show detail and build buyer confidence. Sharpening brings out textures, stitching, and material quality that may appear soft in the original photo.

Rescue Old Photos

Digitized old photos and vintage scans often lose sharpness in the scanning process. Gentle sharpening can restore perceived detail and make old family photos look fresh again.

Enhance Screenshots

Screenshots of web pages, apps, or presentations sometimes appear soft, especially after resizing. Light to medium sharpening makes text and UI elements crisp and professional.

Sharpen Before Printing

Images that look fine on screen can appear soft when printed. Apply light sharpening before sending to print to ensure details look crisp on paper. This is a standard step in professional print workflows.

Unblur Image Features

One-Click Presets

Light, Medium, and Heavy presets for instant results without manual tuning.

Fine-Tune Controls

Adjust strength and blur radius independently for precise sharpening control.

Before/After Toggle

Instantly compare the sharpened result with the original to see the improvement.

Full Resolution

Sharpening preserves your original image dimensions. No downscaling or quality loss.

100% Private

Everything runs in your browser. Your photo never leaves your device.

Unlimited & Free

No limits, no sign-up, no watermarks. Unblur as many photos as you need.

Frequently Asked Questions

Is my photo uploaded to a server?

No. All sharpening happens in your browser using the Canvas API. Your photo never leaves your device.

Can this tool completely fix a very blurry photo?

This tool uses an unsharp mask algorithm to enhance edge contrast and recover perceived detail. It works best on slightly soft or out-of-focus images. Severely motion-blurred or extremely out-of-focus photos have limited improvement because the original detail was never captured. For AI-powered detail recovery, try PixelPanda's AI Upscaler.

What is an unsharp mask?

Unsharp masking is a classic image sharpening technique used by professional photo editors. It works by creating a blurred copy of the image, then subtracting it from the original. The difference — the edges — is amplified and added back, making details pop without introducing noise in smooth areas.

What is the difference between the presets?

Light Sharpen is for slightly soft photos — it applies gentle sharpening that improves clarity without artifacts. Medium Sharpen is the best general-purpose setting for most blurry photos. Heavy Sharpen applies aggressive edge enhancement for very blurry images, though it may introduce halos on high-contrast edges.

What do the Strength and Radius sliders control?

Strength controls how much the detected edges are amplified — higher values produce more dramatic sharpening. Radius controls the size of the blur used to detect edges — a small radius (1px) sharpens fine details like text and textures, while a larger radius (2-3px) sharpens broader features and structures.

Will unblurring reduce image quality?

Sharpening preserves your original resolution. However, over-sharpening can introduce visible halos around high-contrast edges. Use the lowest strength that achieves the desired result. The presets are tuned to avoid artifacts for most images.

Can I unblur a screenshot or scanned document?

Yes. Sharpening is particularly effective on text-heavy images like screenshots, scanned documents, and PDFs converted to images. The Medium or Heavy preset will make text significantly more legible.

What is the difference between this and the Photo Enhancer?

This tool is focused specifically on sharpening and deblurring with precise control over strength and radius. The Photo Enhancer offers broader adjustments including brightness, contrast, saturation, warmth, and clarity. Use this tool when your primary goal is fixing blur; use the Photo Enhancer for overall image improvement.

Does it work on mobile?

Yes, fully responsive. Works on iPhone, Android, iPad, and any device with a modern browser.

Is there a file size limit?

No enforced limit. The tool handles any image size your browser can process. Very large images (50+ megapixels) may take a moment to process depending on your device.

How many images can I unblur?

Unlimited. Since everything runs client-side with no server, there are no daily limits or usage caps. Unblur as many images as you need.

What image formats are supported?

All common formats: JPG, PNG, WebP, GIF, BMP, and more. The tool accepts any image your browser can display. Download results as PNG (lossless) or JPG (smaller file size).

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