PNG to JPEG Converter

The PNG to JPEG tab is a standalone drag-and-drop converter that takes PNG files from your local computer, converts them to JPEG server-side, and optionally saves the result directly into your WordPress media library — without modifying any existing media library files.

This is intended for pre-processing new images before uploading them, not for batch-converting your existing library (use the Image Optimisation tab for that).

How to use it

1. Configure settings — set your JPEG quality, choose an output size preset or enter custom dimensions, and adjust the chunk size if your server has strict upload limits.
2. Add files — drag one or more PNG files onto the upload area, or click Browse. Multiple files can be queued at once.
3. Convert — click Convert All. Each file is uploaded in chunks, assembled server-side, converted, and returned as a downloadable JPEG. Progress for each file is shown in real time in the Converter Console.
4. Download or save to library — each converted file shows a Download button and a Save to Media Library button. Saving prompts for a filename (the .jpg extension is added automatically) and registers the new image in your WordPress media library.

PNG transparency is composited onto a white background before JPEG conversion, so no content is lost even if the source PNG uses an alpha channel.

Conversion Settings

• JPEG Quality (1–100) — controls JPEG compression. 80–92 is recommended for web use. Default: 90. Use 95+ for print; 60–75 for web thumbnails where file size matters more than quality.
• Output Size — choose a resolution preset:
  • 4K (3840 × 2160), 2K (2560 × 1440), Full HD (1920 × 1080), HD (1280 × 720), XGA (1024 × 768), SVGA (800 × 600), VGA (640 × 480), Square 512, Square 256, or Custom.
  When Custom is selected, enter your target width and height in pixels. Enable Constrain proportions to have the missing dimension calculated automatically from the source aspect ratio.
• Chunk Size (MB) — large PNG files are automatically split into chunks before uploading, each chunk staying within your server’s request size limit. Default: 1.5 MB. The setting shows your current server request limit alongside the chunk size so you can keep the chunk below the limit. Allowed range: 0.25–1.95 MB.

Converter Console

The dark terminal panel at the bottom of the tab logs all activity in real time:

• Server environment summary (PHP memory limit, upload limits, GD / Imagick availability).
• Per-file chunk upload progress.
• Conversion results with original size, output size, and compression ratio.
• Any server-side errors with full detail to help diagnose PHP configuration issues.

Use Copy to export the full log, and Clear to reset it before a new batch.