Best Free Image Enhancer Online
Enhance, sharpen, and upscale this type of image with local Canvas controls. Your source photo stays on your device.
Ready to prepare your file?
Open the interactive DocFlexi tool with this page's recommended output settings.
Official specifications
- Dimensions
- 2048 × 2048 px
- File size
- Up to 10,000 KB
- Output format
- PNG / JPEG / WebP
- Aspect ratio
- Source ratio
- Country / region
- Global
How to use this tool
- Choose a photo, signature, PDF, or image from your device.
- Review the pre-configured dimensions or file-size target.
- Adjust the crop or conversion settings, then generate the output.
- Download the result and confirm it matches the receiving portal's current rules.
Requirements and practical guidelines
- Use Auto-Enhance as a starting point, then fine-tune sliders.
- Use PNG for graphics and JPEG or WebP for photographs.
- Download only after checking the before-and-after comparison.
Important: Application authorities can change specifications. Treat the official application notice as the final source of truth.
Why use DocFlexi for this requirement?
Unlike upload-based converters, DocFlexi uses browser APIs to process the file on your device. That makes it useful for identity photos, signatures, immigration documents, and marketplace assets that should not be sent to a third party. The generated download is created only after you choose to export it.
Frequently asked questions
Is this image enhancer really free?
Yes. The browser canvas tool is free to use with no account or upload.
Does it use an AI server?
No. Its enhancement controls run in your browser using HTML5 Canvas APIs.