Key Features

• Upload PNG files locally or import an entire folder in batch.
• Apply a custom hex background color to fill transparent regions.
• Compare source and output side by side before exporting.
• Download one result or trigger bulk downloads for all processed files.

How to Use

1. Click "Select PNG" or drag PNG files into the drop area.
2. Set a fill color such as #EC1518 and confirm files are in queue.
3. Run "Process Current" or "Process All" to generate outputs.
4. Download the current result or export all generated files.

Use Cases

• Prepare ID-photo assets with unified backgrounds.
• Generate ecommerce product images with clean solid backgrounds.
• Standardize social media visuals with consistent brand colors.

Tips

• Use #RRGGBB color format and re-process images after changing the fill color.
• Download ZIP generates one archive file, so keep the page active and allow the download.
• Processing keeps the original width and height and only fills transparent areas.

FAQ

• Q: Why PNG only? A: This tool focuses on transparent PNG background fill, so PNG-only input keeps output behavior consistent.
• Q: Why were old results cleared after color change? A: Color updates reset generated outputs to prevent mismatched exports.
• Q: Will output dimensions change? A: No. The tool keeps original dimensions and only fills transparent regions.
• Q: Are files uploaded? A: No. All processing stays in your browser.