What Is Batch Image Conversion?
Batch image conversion means converting multiple images at once — applying the same format, quality, and resize settings to hundreds or thousands of files in a single operation. Instead of converting images one by one, you process them all simultaneously.
For e-commerce sellers, marketing teams, and web developers, batch conversion is essential. Manually converting 500 product images would take hours. With a bulk image converter, it takes minutes.
Methods to Batch Convert Images Online
There are three main methods for batch converting images online:
- 1File upload batch: Upload multiple image files directly, apply shared settings, download a ZIP
- 2Excel/URL batch: Paste image URLs from a spreadsheet — ideal for large product catalogs
- 3API batch: Send image conversion jobs programmatically — for developers building automated pipelines
How to Batch Convert Images with BatchSet
BatchSet's Bulk Converter supports all three methods. Here's how to use the file upload method:
- 1Go to the Bulk Image Converter tool
- 2Drag and drop your images (or click to select multiple files)
- 3Set shared settings: output format (e.g., WebP), quality (80), and resize if needed
- 4Or toggle per-file settings to customize each image individually
- 5Click 'Convert All' — processing happens in parallel
- 6Download the ZIP file with all converted images
Use the Excel batch mode if your images are hosted online (e.g., Shopify product images). BatchSet downloads, converts, and packages them automatically — no manual downloading required.
Batch Convert Images Using Excel (URL Mode)
The Excel batch mode is the most powerful feature for high-volume users. It works like this:
- 1Create a spreadsheet with one image URL per row (Column A: filename, Column B: URL)
- 2Upload the spreadsheet to BatchSet's Excel Converter
- 3Set global conversion settings (format, quality, dimensions)
- 4BatchSet fetches each URL, converts it, and packages all outputs in a ZIP
- 5Download and re-upload wherever you need them
Supported Formats for Batch Conversion
BatchSet's bulk converter supports the following input and output formats:
- Input: JPG, JPEG, PNG, WebP, GIF, BMP, TIFF, SVG
- Output: JPG, PNG, WebP, GIF, BMP, TIFF, PDF
- Most popular: bulk JPG to WebP, bulk PNG to WebP, bulk WebP to JPG
Batch Image Conversion Use Cases
Common reasons people use batch image conversion:
- E-commerce: Convert entire Shopify or Daraz product catalog to WebP for faster page loads
- Web development: Optimize all site images for Core Web Vitals
- Marketing: Prepare campaign assets in multiple formats at once
- Photography: Export hundreds of RAW-processed images to web-ready WebP
- Digital agencies: Process client assets in bulk — no per-image manual work