Image Upscaling and Resizing Online
Increase image dimensions, resize to exact output sizes, and export PNG, JPG, or WEBP files. Files expire 4 hours after completion.
Upload Image
Choose one supported image, select upscale or resize settings, then download the processed output.
Verifying account access.
Image Preview
Preview appears after you choose an image. Compare view appears after processing completes.
No Image Selected
Choose an image to see source details, output dimensions, and comparison options.
About Online Image Upscaling and Resizing
FileConvertHQ supports image upscaling and resizing for JPG, PNG, WEBP, HEIC, and HEIF files. Increase image dimensions, resize to exact output sizes, and export PNG, JPG, or WEBP files.
Upscale Mode
Increase image dimensions by 2x or 4x, then review the processed preview before downloading.
Resize Mode
Set width, height, fit area, fill-and-crop size, or percentage scale for exact output dimensions.
Output Formats
Save processed images as PNG, JPG, or WEBP. Files remain available for 4 hours.
Image Upscaling and Resizing FAQ
Which Image Formats Are Supported?
Source images can be JPG, PNG, WEBP, HEIC, or HEIF. Output can be saved as PNG, JPG, or WEBP.
When Should I Use Resize Instead of Upscale?
Use resize for exact output dimensions. Use upscale when the goal is to increase image dimensions by 2x or 4x.
How Long Are Processed Images Available?
Processed images are available for 4 hours after completion.