Introduction

If you work with images on a Mac, you’re juggling formats constantly: JPEG for the web, PNG for transparency, HEIC from iPhones, RAW from cameras, SVG and PDF for vectors. Converting them one at a time in Preview gets old around image number twelve. A batch image converter handles the whole folder at once.

The five tools below range from dead-simple converters to full batch-editing suites. We looked at format support, speed, pricing, and whether your files stay on your machine.

Looking for a broader comparison? Our 2026 guide to the best media converter apps for Mac covers 8 tools across images, video, and audio.

Comparing top batch image converters for Mac

ToolBest forFormat supportExtra featuresPrice
PicmalSimple, private conversion

JPEG, PNG, GIF, BMP, TIFF, WebP, AVIF, HEIC, RAW, PSD, SVG, EPS, AI, PDF, ICO

Remove metadata, rename filesOne-time purchase (affordable)
BatchPhotoProfessionals with heavy workflows170+ formats including RAW & PSDResize, crop, watermark, annotate, filters, watch foldersPaid license
XnConvertAdvanced batch editing with free option500+ input formats80+ actions, metadata editing, presetsFree for personal, license for commercial
AdapterMulti-media (images, video, audio)Common image formatsVideo/audio conversion, preview with file size estimationFree
KompressorMac-native, modern UI50+ input formats, 20+ outputsResize, compression control, metadata removalFree with in-app purchases

1. Picmal

Picmal is a lightweight macOS converter that runs offline. No server, no uploads, no account. Drag files in, pick a format, done.

Key Features

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

Pros

  • Privacy-friendly — files never leave your disk
  • Simple enough that you don’t need the docs
  • One-time purchase
  • Clean macOS-native UI

Cons

  • No image editing or filters
  • No watched folders or automation hooks

2. BatchPhoto

BatchPhoto is the power tool here. If you process thousands of images regularly and need watermarking, filters, and watched folder automation, this is where those features live.

Key Features

  • 170+ image formats including RAW and PSD
  • Resize, crop, watermark, filters, color adjustments
  • Watch folder automation
  • Presets for repeat tasks
  • Multi-core CPU support

Pros

  • Deep feature set for professional workflows
  • Handles massive workloads
  • Watch folders let you automate recurring jobs
  • Good for photography studios and design teams

Cons

  • Paid license required
  • Setup takes some time
  • Interface looks like it hasn’t been redesigned since 2014

3. XnConvert

XnConvert is free for personal use and absurdly capable — 500+ input formats, 80+ batch actions. The interface looks like it was designed by engineers for engineers, which is both its strength and its weakness.

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

  • Absurd format support breadth
  • Free for personal use
  • If the action exists, XnConvert probably has it
  • Cross-platform (same app on Mac, Windows, Linux)

Cons

  • UI feels like a Windows app wearing a macOS costume (because it is)
  • 80+ actions means a lot of menus between you and a simple conversion
  • Commercial use requires a license

4. Adapter

Adapter by Macroplant handles images, video, and audio conversion in one app. It’s free and does the basics well, though it won’t compete with dedicated image tools on format depth.

Key Features

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

Pros

  • Handles images, video, and audio in one app
  • Free
  • File size preview helps you gauge output before committing
  • Quick for everyday conversions

Cons

  • Thinner format support than the dedicated image tools
  • No editing features
  • Interface is functional but hasn’t aged gracefully

5. Kompressor

Kompressor is built for Apple Silicon and looks the part. Easily the most polished app on this list — haptic feedback, smooth animations, the kind of attention to detail that makes dragging files into a converter feel weirdly satisfying.

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

  • UI that’s genuinely fun to use
  • Fast on Apple Silicon
  • Supports WebP, AVIF, HEIC
  • Offline and private

Cons

  • No watched folders or scripting
  • No editing or filters
  • Some features locked behind 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

Most people don’t need 500 formats or 80 batch actions. If you want to convert a folder of HEICs to JPEGs and get on with your day, Picmal or Kompressor will do it in seconds. If you run a photography studio and need watched folders, watermarking, and scripted automation, BatchPhoto or XnConvert earn their complexity. Adapter is the best free option if you also convert video and audio.

FAQ

What is the best image converter for Mac?

For most people, Picmal is the best image converter for Mac: it batch-converts a whole folder of HEIC, PNG, JPEG, RAW, WebP and more in seconds, runs entirely offline, and costs $15.99 once with no subscription. If you need watched folders and scripted automation, BatchPhoto or XnConvert go deeper. Adapter is the best free option if you also convert video and audio.

Is there a free image converter for Mac?

Yes. Adapter is a free, FFmpeg-powered converter that handles images, audio and video, and macOS itself can convert single images through Preview or the right-click Quick Actions menu. Free tools are fine for the occasional file. For converting hundreds at once with presets and no watermark, a dedicated app like Picmal is faster.

Can I batch convert photos on my Mac?

Yes. Drag a whole folder into a batch image converter like Picmal, pick your output format and quality, and convert every file in one pass. Converting one at a time in Preview works but gets tedious past a dozen images. For a full walkthrough, see How to Batch Convert Images on Mac.

What image formats can I convert on a Mac?

A good Mac image converter handles JPEG, PNG, HEIC, WebP, TIFF, GIF, BMP and camera RAW formats like ARW, CR2, NEF and DNG, plus PDF and SVG in some tools. Check the specific app, since free tools often support fewer formats than paid ones.