Batch Converting 1,000 Images: The Right Way

Whether you're a photographer processing RAW files, a designer exporting assets, or just someone with a folder full of BMPs that need to be JPEGs — batch conversion saves hours of repetitive work.

Choosing the Right Output Format

Before you batch convert, pick the right target format:

• JPEG: Best for photos, universal compatibility, good compression. Use quality 85-92 for web, 95+ for print
• PNG: Best for screenshots, graphics with text, anything needing transparency
• WebP: 25-35% smaller than JPEG at similar quality. Ideal for web use. Now supported by all major browsers
• AVIF: Even better compression than WebP, but slower to encode. The future of web images
• TIFF: Lossless, large files. Best for print workflows and archival

What About Metadata?

Each photo carries EXIF metadata: camera settings, GPS coordinates, timestamps, copyright info. Many conversion tools strip this data by default. Filoshi preserves metadata during conversion unless you explicitly choose to strip it — useful for privacy when sharing photos online.

The Batch Conversion Workflow

1. Drag your folder into Filoshi — it recursively finds all image files
2. Select output format for the entire batch with one click
3. Choose quality settings if applicable (JPEG, WebP, AVIF)
4. Hit Convert — all files process in parallel using all CPU cores
5. Output files appear alongside originals (or in a subfolder, your choice)

Performance: Online vs. Desktop

Converting 1,000 images through an online service typically requires:

• Uploading ~2-5 GB of data (minutes to hours depending on connection)
• Waiting for server-side processing (queue times vary)
• Downloading all results (another round of bandwidth usage)

With Filoshi running locally, the same batch completes in minutes, limited only by your CPU and disk speed. No upload, no download, no waiting.