MellowConvert

Image conversion, made for Mac

Convert images.
Simply. Privately.

Convert HEIC, JPEG, PNG and PDF files, resize images, remove sensitive metadata, and process multiple files in one clean workflow — all on your Mac.

View on the Mac App Store Explore features
HEIC → JPG PNG → JPG Image → PDF Resize Remove metadata
MellowConvert for Mac main conversion screen
Batch readyProcess multiple images at once
Flexible outputFormat, quality and size controls
Local workflowYour images stay on your Mac

One workflow, less friction

Everything you need for everyday image conversion.

From a few files to a full folder, MellowConvert keeps conversion settings and results in one place.

01

Convert a batch in one go.

Add files or a folder, choose the output format, quality and size once, then run the entire batch together.

  • Multiple files in a single job
  • JPEG, PNG, HEIC and PDF output
  • Original, 2048 px, 1024 px or custom sizing
Nine HEIC images queued for JPEG conversion in MellowConvert
02

See the result. Keep moving.

When conversion finishes, review output files immediately, open the destination folder, share results, or start a new task.

  • Clear success status for each job
  • Quick access to converted files
  • Repeat the same job without rebuilding settings
MellowConvert completion screen showing nine converted JPG files
03

Turn images into one PDF.

Combine multiple images into a single PDF when you need a document that is easier to archive, send, or share.

  • Merge selected images into one PDF
  • Keep the selected image order
  • Open the finished file directly from the result screen
MellowConvert result screen showing a merged PDF created from images

Private by design

Your images stay on your Mac.

MellowConvert performs image conversion locally. Your source images and converted results are not uploaded to a Nicechann Studio image-processing server.

When needed, you can also remove location, EXIF and other sensitive metadata before saving the converted file.

Read the Privacy Policy →

Start free. Unlock more when you need it.

Free for everyday jobs. Pro for heavier workflows.

Free

Essential conversion

For quick, everyday image tasks.

  • Up to 5 files per job
  • JPEG, PNG, HEIC and PDF
  • Resize and quality controls
  • Metadata removal

Pro · One-time purchase

Full workflow

For larger batches and repeat work.

  • Unlimited files per job
  • Recursive folder scanning
  • Custom dimensions
  • Advanced file-name rules
  • Recent settings and output-folder restoration
  • Up to 50 history entries

Requires macOS 13 or later.

MellowConvert for Mac

Make image conversion feel effortless.

Choose your files, set the output, and let MellowConvert handle the rest.

View on the Mac App Store