Batch Image Conversion for macOS

Reimager app iconDownload on the Mac App Store
Reimager is a fast, friendly Mac app for batch image conversion and resizing. Drag in files or folders, pick your presets, and run the queue; Reimager handles the rest with reliable, sandboxed performance.

What’s New:
1.1 — First App Store release!

  • Fast batch conversions with a simple, preset-driven workflow.
  • High-quality WEBP, JPEG, PNG, and HEIC output (HEIC via Apple ImageIO).
  • Flexible resizing: exact size, fit-width, or fit-height (perfect for picture frames).
  • Smart file naming (append dimensions, choose .jpg or .jpeg).
  • Turbo mode to parallelize long queues.
  • Imports and exports to nested folders (recursively) or user-set Export folder.

Why you’ll love it:

  • Preset-driven workflow: add as many “Format Presets” as you want (e.g., WEBP q80 at 1920×1080, JPEG q90 at 1080 height).
  • Flexible resizing: choose Shrink or stretch to fit (exact WxH), Scale to fit width, or Scale to fit height — great for photo frames and social exports.
  • Smart naming: optionally append dimensions (e.g., photo-1920×1080.jpg), choose .jpg or .jpeg, and control extension behavior.
  • Batch everything: drop files or folders; Reimager walks subfolders and ignores non-image clutter.
  • Multiple setting configurations can be saved and reloaded for jobs.
  • Turbo mode: use all available cores to speed through large queues.
  • Option to strip all metadata.
  • Clean, private, and sandboxed: no accounts, no ads, no trackers, and only the files you choose.
  • Automatic and manual cache purging… no bloating.

Formats:
Input: common image types: JPEG, AVIF, ARW, CR2, DNG, PNG, TIFF, GIF, BMP, HEIC, RAW, WebP variants and more.
Output: WebP, JPEG (.jpg or .jpeg), PNG, HEIC.

Note: HEIC is encoded via Apple ImageIO for App Store compatibility.

Requirements:
– macOS 15+ , Apple silicon (M1 or greater).