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
Start batch converting images free — 30 credits, no card required.
Free to start — no credit card required.
Frequently Asked Questions
Can I batch convert images for free?
Yes. BatchSet gives you 30 free credits per month — each image conversion uses 1 credit. That's 30 images converted for free every month. Pro users get 500 credits/month for larger batch jobs.
How many images can I convert at once?
Free users can convert up to 30 images per month (1 credit per image). Pro users can process up to 500 images per batch job. Enterprise users get 2,000 credits/month with priority processing.
What is the best free bulk image converter?
BatchSet offers free bulk image conversion with support for all major formats (JPG, PNG, WebP, GIF, BMP, TIFF). Key features include: Excel/URL batch mode, ZIP download, per-file or shared settings, and quality/resize controls.
Can I batch convert images from URLs?
Yes. BatchSet's Excel Batch Mode lets you upload a spreadsheet with image URLs. It automatically downloads each image, applies your conversion settings, and returns a ZIP of converted files. This is ideal for Shopify product images.
Does batch converting images affect quality?
Only if you want it to. You have full control over quality settings for each batch job. At quality 80-85, WebP output is visually identical to the JPG input but 60-80% smaller. You can also do lossless conversion.