HD Image Converter Online

The HD image converter is a search door onto Viralkey's dedicated quality pass. You upload one still, leave 2× to enlarge the longest edge, or pick 1× / 4×. It is not a generative rewrite and it is not a private HD engine: Image Upscaler runs the same pass. Use it when the photograph is already right and only the file is too small.

No. HD Image Converter, Image Enhancer, Image Upscaler, Unblur Images and Denoise AI all run the same enhancement pass. The pages are search entries with different default scale chips. 1× restores clarity at the original size. 2× and 4× really enlarge the longest edge. You can change the chip on any of those pages; the engine does not switch.

1× keeps the same pixel dimensions and spends the pass on sharpness and local contrast. 2× doubles the longest edge. 4× quadruples it. None of those chips invent a new crop or a new background. If the source is already huge, stay on 1× — stretching a large file further rarely helps, and the longest edge after scale must stay within the tool's size limit.

It is built not to. The source file is sent through a quality pass, not a prompt-driven edit. Faces, clothes, furniture and the room should remain the ones you uploaded. You may still see a slightly cleaner read of texture and edges. If you need a new expression, a new outfit or a new background, that is a different studio page.

Yes. Each run is a Viralkey Studio generation and spends credits from your balance. This tool requires Pro — generation is gated until you upgrade, not a limited free-tier allowance. The exact spend is shown in-product before you confirm. Rerunning the same photo at another scale is a new spend.

Use a JPEG, PNG or WebP that is in focus enough to have something to recover. Front light helps more than a night-phone snap with heavy digital zoom. Avoid files that are already covered in a beauty filter or a second upscale — those stacks are hard to undo. The upload must stay under the size cap shown on the form.

Only upload photos you have the right to edit. Do not use the tool for identity fraud, harassment, or to embarrass anyone. Edits involving minors are out of scope. If you do not have permission to change the image, do not run it through the studio.

Finished images are saved to your Viralkey asset library, where you can open them beside the source, download a copy, and keep more than one scale from the same upload. Nothing requires a second reference file — one source photo is enough for each run. Check History on the tool page if you want the last stills without leaving the studio.