Introduction

Working with images on a Mac often involves dealing with a variety of formats, such as JPEG for the web, PNG for transparency, HEIC for iPhones, RAW for cameras, and vector formats like SVG and PDF. Converting each file manually is time-consuming, which is why a batch image converter is essential for Mac users.

The right tool will enable you to convert dozens or even thousands of files at once, save presets for repeated workflows and, in some cases, automatically resize, watermark or compress images.

In this guide, we compare the five best batch image converter apps for macOS in 2025, evaluating them on the basis of ease of use, supported formats, pricing, privacy and advanced features.

A comparison of the best batch image converters for Mac

Tool	Best for	Format support	Extra features	Price
Picmal	Simple, private conversion	JPEG, PNG, GIF, BMP, TIFF, WebP, AVIF, HEIC, RAW, PSD, SVG, EPS, AI, PDF, ICO	Remove metadata, rename files	One-time purchase (affordable)
BatchPhoto	Professionals with heavy workflows	170+ formats including RAW & PSD	Resize, crop, watermark, annotate, filters, watch folders	Paid license
XnConvert	Advanced batch editing with free option	500+ input formats	80+ actions, metadata editing, presets	Free for personal, license for commercial
Adapter	Multi-media (images, video, audio)	Common image formats	Video/audio conversion, preview with file size estimation	Free
Kompressor	Mac-native, modern UI	50+ input formats, 20+ outputs	Resize, compression control, metadata removal	Free with in-app purchases

1. Picmal

Picmal is a lightweight image converter built specifically for macOS that prioritises privacy. It’s the perfect choice if you’re looking for a simple, offline solution.

Key Features

• Drag & drop batch conversion
• Works entirely offline with no cloud uploads
• Supports raster and vector formats (JPEG, PNG, WebP, AVIF, HEIC, RAW, PSD, PDF, SVG, EPS, AI, ICO)
• Rename files with prefixes/suffixes
• Remove metadata (EXIF, GPS, ICC profiles)

Pros

• Privacy-friendly (local only)
• Very easy to use
• Affordable one-time purchase
• Clean macOS-native UI

Cons

• No image editing or filters
• Lacks advanced automation features

2. BatchPhoto

BatchPhoto is a professional, full-featured tool designed for heavy-duty batch processing.

Key Features

• Converts over 170 image formats including RAW and PSD
• Resize, crop, watermark, add filters, adjust colors
• Automatic processing via watch folders
• Presets for repeat tasks
• Multi-core CPU support for large jobs

Pros

• Professional feature set
• Handles huge workloads
• Powerful automation with watch folders
• Good for photographers and designers

Cons

• Paid license required
• More complex setup
• Interface feels dated

3. XnConvert

XnConvert is one of the most flexible free tools available, offering a range of powerful features for personal use at no cost.

Key Features

• Supports over 500 input formats
• More than 80 batch actions (resize, crop, watermark, filters, metadata editing)
• Cross-platform (Mac, Windows, Linux)
• Workflow presets and automation

Pros

• Extremely wide format support
• Free for personal use
• Great for advanced editing tasks
• Cross-platform continuity

Cons

• UI is less polished on macOS
• Overwhelming number of features for simple tasks
• Commercial use requires a license

4. Adapter

The Adapter by Macroplant is a versatile tool that can convert images, videos and audio files.

Key Features

• Converts images, audio, and video in bulk
• Previews output with file size estimation
• Supports sequences and overlays
• Free, lightweight installer

Pros

• Multi-media conversion (not only images)
• Simple and free
• File size preview helps with optimization
• Works quickly for common tasks

Cons

• Limited format support compared to pro tools
• Lacks advanced editing features
• Interface is more functional than modern

5. Kompressor

Designed for macOS, Kompressor is a modern converter optimised for Apple Silicon.

Key Features

• Supports 50+ input formats and 20+ outputs
• Batch conversion with drag & drop
• Adjust compression levels
• Remove or preserve metadata
• Optimized for M1, M2, and M3 Macs

Pros

• Modern and fun UI with haptic feedback
• Fast performance on Apple Silicon
• Supports modern formats like WebP, AVIF, HEIC
• Offline and private

Cons

• Lacks advanced automation features
• No editing or filters
• Some features require in-app purchases

Which Image Converter Should You Choose?

• For quick, private conversions: Picmal
• For professional workflows: BatchPhoto or XnConvert
• For a free, all-in-one tool (images + media): Adapter
• For a sleek, Mac-native experience: Kompressor

Conclusion

Whether you need a lightweight image converter or a full-featured batch editor for Mac, the five tools above have you covered. There are options for every workflow, from privacy-first apps like Picmal to professional batch processors like BatchPhoto and free, flexible solutions like XnConvert and Adapter.

If your priorities are simplicity and speed, start with Picmal. If you need automation and advanced editing, BatchPhoto or XnConvert are the best options. And if you want a modern interface built for Apple Silicon Macs, Kompressor is worth a try.