About the Sharpen Image
Slightly soft photos — from phones, scans or resizing — can be made noticeably crisper with sharpening. This tool applies an adjustable unsharp mask, the same technique photographers use in Photoshop and Lightroom, to bring back detail and edge definition.
How to Use the Sharpen Image
- Click the upload box and choose your file, or simply drag and drop it in.
- Adjust the available options to match what you need.
- Click the action button and let House of Convert do the work in seconds.
- Download your result instantly — no email, no account, no watermark.
Why Use the Sharpen Image at House of Convert?
- Free forever — every tool on this site is free to use, with no hidden limits.
- Private by design — your file is processed for this request only and never stored on our servers.
- Fast — results are usually ready in a few seconds, even for larger files.
- No installation — works entirely in your browser, on desktop or mobile.
Frequently Asked Questions
How do I sharpen a blurry picture?
Upload the photo, set the Intensity slider (1.5 is a good start) and click Sharpen.
Can sharpening fix a very blurry photo?
It improves mild softness, but it can’t recover detail lost to heavy motion blur or out-of-focus shots.
What intensity should I use?
1–2 for gentle sharpening, 2–3 for soft scans; higher values can create halos.
What is an unsharp mask?
A classic technique that boosts contrast along edges, making them look crisper.
Why does my image look grainy after sharpening?
Sharpening also emphasises noise. Lower the intensity.
Should I sharpen before or after resizing?
After resizing down — resizing softens images slightly.
Can I sharpen text in a scanned document?
Yes, mild sharpening improves readability of soft scans.
Does it change the format?
No, the sharpened image keeps its original format.
Does the Sharpen Image tool work on iPhone and Android?
Yes.
Does the Sharpen Image tool store my photo?
No, it’s deleted immediately.