Sharpen and unblur images online — free, instant, runs in your browser.

How to sharpen or unblur an image online

1. Open your image. Click to browse, drag and drop, or paste with Ctrl+V / ⌘V. JPEG, PNG and WebP are supported up to 8 MiB.
2. Select the Adjust tool. Use the Contrast slider to increase perceived sharpness — this is the main tool for making images look crisper. For most soft photos, boost Contrast to 120–140%. Combine with a slight Brightness increase for best results.
3. Adjust exposure if needed. Brightening slightly before sharpening helps recover detail in shadowed areas. Increase exposure first, then increase Contrast.
4. Download. Export as JPEG, PNG or WebP — no watermark, no account required.

For severe blur, motion blur or out-of-focus shots, the AI image upscaler can recover more detail using AI enhancement on top of local sharpening.

Types of blur this tool can improve

• Soft focus / slight blur. Photos that look slightly soft rather than sharp — common in phone cameras with portrait mode, low-light shots or long zoom. Sharpening recovers edge definition significantly.
• Compression blur. Images that look softer after being uploaded to Instagram, WhatsApp, LinkedIn or other platforms that compress photos. Boost Contrast before uploading to compensate for the platform's compression.
• Screenshot text blur. Screenshots with slightly blurry text — common when taking high-DPI screenshots at reduced scale. Sharpening recovers legibility of text and fine detail.
• Noise and grain. High-ISO night photos or dark indoor shots with visible grain. Use the Contrast and Brightness sliders together to reduce the visual impact of noise while maintaining overall clarity.
• Scan softness. Scanned documents and photos often lose sharpness in the scanning process. Boosting Contrast after scanning recovers the crispness of the original.

What local sharpening cannot fix

Local sharpening improves edge contrast and perceived clarity, but it cannot recover detail that was never captured in the original image. These types of blur require AI-powered recovery:

• Severe motion blur. Camera shake or fast-moving subjects create smeared streaks. This requires AI deblurring, not contrast adjustment. Try the AI image upscaler.
• Significantly out-of-focus shots. Photos where the subject is severely out of focus have no original pixel data to recover. Local sharpening will only amplify noise.
• Heavy JPEG artefacts. Very low-quality JPEG compression creates blocking artefacts that sharpening will worsen. AI enhancement is needed.

Tips for the best results

• Sharpen before uploading to social media.Instagram, WhatsApp and Twitter compress images on upload. Apply contrast beforehand so the final compressed version still looks crisp.
• Sharpen before printing. Printed photos look softer than on screen. A Contrast boost of 115–125% before printing compensates for the softening that ink diffusion creates on paper.
• Don't over-boost contrast. Too much contrast creates harsh clipping and loss of detail. Start moderate (115–130%) and increase gradually — you can always download and re-adjust.
• Add a small brightness boost alongside contrast. Adding 5–10% brightness with contrast gives images a natural, clear look without the dark, heavy effect of contrast alone.
• For noisy photos, reduce exposure after sharpening.If noise becomes more visible after sharpening, pulling exposure down slightly reduces its visual impact.