Bulk WebP to PNG Conversion for CMS Migrations

July 4, 2026 · 3 min read

A client's e-commerce platform generated 1,200 product images in WebP format. Their legacy order management system — the one that prints packing slips — only accepted PNG. The junior dev on the project started converting files one at a time. I showed him our bulk converter. He did 50 at a time, 24 batches, and finished in under 15 minutes.

When a CMS Migration Forces Format Conversion

Modern CMS platforms (Shopify, Webflow, WordPress with modern plugins) serve WebP automatically. Legacy systems do not. If your migration involves a print workflow, an older ERP, or a government system, expect to convert every image back to PNG. Batch convert now →

Batch Strategy for Large Libraries

Process 50 files per batch — that is the sweet spot for browser memory and download speed. Each file keeps its original name. No renaming, no lost assets. I processed 1,200 images this way and not one was misnamed. Try bulk WebP to PNG →

Alex Chen Written by Alex Chen — Frontend Engineer. I build fast websites and convert a lot of images. More about me →