NConvert is a multi-format command-line (CLI) image processor that handles batch conversion, resizing, and manipulation through scriptable commands.

Updated
Size
10MB
Downloads
6.7K

Download NConvert free and automate your image workflows immediately.

Why Choose NConvert for Batch Processing?

500+ Image Format Support
NConvert reads and writes virtually every image format you'll encounter - from legacy BMP and TIFF to modern AVIF, HEIC/HEIF, WebP, and JPEG XL.

Process RAW files from Canon, Nikon, Sony, and other manufacturers alongside common web formats.

80+ Processing Commands
Apply resizing, rotation, cropping, color adjustments, filters, watermarks, and format conversions through command-line parameters.

Chain multiple operations in a single pass to process entire folders efficiently.

Script Integration Ready
Integrate NConvert into batch files, shell scripts, and automated workflows.

Schedule overnight processing jobs, build image pipelines, or trigger conversions from other applications - perfect for photographers, web developers, and system administrators managing large image libraries.

Cross-Platform Deployment
Run NConvert on Windows (32/64-bit), Linux, macOS, DOS, and OS/2.

The same commands work across platforms, simplifying deployment in mixed environments.

Lightweight and Fast
NConvert processes images quickly without excessive resource consumption.

Handle thousands of files in batch operations that would take hours using GUI tools.

Common NConvert Use Cases

Web Image Optimization: Batch convert entire directories to WebP or AVIF for faster page loads. Resize images to specific dimensions while maintaining aspect ratios.

Format Migration: Convert legacy image collections to modern formats. Transform RAW camera files to DNG archives or process iPhone HEIC photos for older systems.

Automated Workflows: Schedule nightly processing of incoming images. Integrate with backup scripts to compress images before archiving.

Thumbnail Generation: Create multiple image sizes from a single source - generate thumbnails, previews, and full-resolution versions in one operation.

GUI Alternatives for Visual Workflows

Prefer working with a graphical interface? Several tools from the same developer offer visual alternatives:

XnConvert provides drag-and-drop batch conversion with 80+ editing operations and preview capabilities.

Check out A Quick Guide to Fast Convert HEIC Files with XnConvert for instructions.

XnView combines image viewing with batch processing for 700+ formats - browse thumbnails and convert files in the same interface.

More Image Conversion Tools

For specialized conversion needs, explore these alternatives:

  • XL Converter - Modern format specialist with JPEG XL, AVIF, and WebP encoding plus multithreading.
  • File Converter - Right-click conversion integration for Windows Explorer.
  • Converseen - ImageMagick-based converter handling 100+ formats with batch renaming.
  • reaConverter - Watch Folders automation with command-line integration for 600+ formats.
  • FastStone Photo Resizer - Batch resizing with watermark support and preview function.
  • Light Image Resizer - Simple batch resizing and format conversion.
  • iMazing Converter - HEIC to JPEG/PNG conversion with EXIF preservation.

Image Viewers with Conversion Features

These viewers also handle batch conversion alongside browsing:

  • IrfanView - Lightweight viewer with batch conversion through plugins.
  • FastStone Image Viewer - Full-featured viewer with built-in batch tools.
  • ImageGlass - Modern Windows interface supporting 80+ formats.
  • PicView - Fast viewer with native HEIC, AVIF, and WebP support.
  • nomacs - Multi-instance viewer with AVIF plugin support.
  • JPEGView - Minimal viewer handling JPEG XL, AVIF, and WebP.

Format Support Resources

Working with specific formats? These guides help:

Download NConvert and automate your image conversion workflows with 500+ format support and 80+ processing commands.

Available files

All download links

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