About this tool
Sharpen Image: Make a soft or slightly blurry photo crisper. Choose a file, adjust the options and download the result — the processing runs entirely in your browser, so your file is never uploaded to a server. No sign-up, no watermark.
How do I use the Sharpen Image?
Choose a file or drop it onto the box. Set the options you want. Click the button — the result downloads automatically.
Is the Sharpen Image free?
Yes. It is completely free with no sign-up, no usage limits and no watermark.
Are my files uploaded?
No. The file is processed entirely in your browser using WebAssembly and web APIs — it never leaves your device, which also makes it work offline once the page is loaded.
Does it work on my phone?
Yes. It works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux — no app needed.