ND Image Converter

A fast, native media conversion toolkit

Mac / Window
PLATFORM
$0
COST TO MAKE
0.5.0
VERSION
Tauri 2 / Rust / React
BUILT WITH
Download for free See Features

OVERVIEW

ND Image Converter is a modern, lightweight desktop utility designed for creators, photographers, and developers who need high-throughput image conversion without sacrificing privacy or speed.

Built with Tauri 2, React, and a multi-threaded Rust processing engine, it runs 100% offline directly on your machine.

Everything you need for a Converter

A fast, native media conversion toolkit for photographers, filmmakers and creators

Batch Conversion

Convert hundreds of images natively. Drag, drop, and let the app handle the rest while you focus on what matters.

Smart Resize Options

Fine-tune compression ratio.

  • Original dimensions
  • Fixed Width (with aspect-ratio preservation)
  • Percentage Scaling

Formats Supported

Support for 50+ input formats, including native Camera RAW, SVG, AVIF, and WebP.

100% Offline & Private

Zero cloud uploads – 100% offline, secure local processing.

Watch Folder Automation

  • Auto-detect and batch convert images instantly when dropped into an incoming directory
  • Designed for tethered photography, SD card ingestion, and content creation pipelines.

Pro Inspection & Comparison Modal

  • Synchronized 1:1 pixel inspection with smooth Pan & Zoom controls.
  • Interactive Before/After slider to evaluate sharpness, noise, and compression artifacts at a glance.

Frequently Asked Questions

Quick answers to common questions about ND Image Converter

This SmartScreen warning appears because ND Image Converter isn't code-signed yet. Code signing certificates cost $400+/year, which isn't feasible for a free project at this stage.

To install safely:

  1. Click "More info" on the warning dialog
  2. Click "Run anyway"

ND Image Converter is 100% free with premium features — download from GitHub and verify it runs completely offline.

macOS Gatekeeper may block apps downloaded from the internet. Try these fixes:

Method 1 (Recommended): Open Terminal and run xattr -cr /Applications/ND Image Converter.app

Method 2: Right-click the app -> select "Open" -> click "Open" in the dialog.

Method 3: Go to System Settings -> Privacy & Security -> scroll down and click "Open Anyway".

No. ND Image Converter runs entirely on your device. Your images never leave your computer unless you explicitly share them. I don't collect analytics, telemetry, or any personal data.

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