ResizerRust

A high-performance batch image converter written in Rust with a Slint GUI.

Features

• Multi-format support: JPG, PNG, WebP, BMP, GIF, TIFF, ICO
• Batch processing with configurable thread count
• Drag and drop files and folders
• Resolution scaling (percentage-based)
• Quality settings for each format
• EXIF metadata preservation
• Real-time progress tracking and statistics
• Cross-platform (Windows, Linux, macOS)

Building

cargo build --release

Or build the local Windows artifact:

.\build.ps1

Running

cargo run --release

GitHub Releases

This repo publishes Windows x64 builds from tags. Configure origin to point at the GitHub repo, then ship an update with:

.\release.ps1 -Version 1.0.1

GitHub Actions will build resizerrust.exe, package it as resizerrust-v1.0.1-windows-x64.zip, and attach it to the GitHub Release.

Release builds check GitHub Releases on startup. If a newer release has resizerrust.exe and resizerrust.exe.sha256 assets, the app asks before it downloads anything. If accepted, it verifies the SHA-256, replaces the running exe, and relaunches. Public updates require a public repo or a RESIZERRUST_GITHUB_TOKEN environment variable with release access.

Dependencies

Windows

• Microsoft Visual C++ Redistributable
• No additional dependencies required

Linux

• Install system dependencies:

  sudo apt-get install libclang-dev pkg-config

macOS

• Xcode command line tools

Phase 1-3 Implementation

This implementation includes:

Phase 1: Foundation

• ✅ Project initialization with Slint
• ✅ Basic UI layout
• ✅ File drag & drop support (UI ready)
• ✅ Settings load/save functionality

Phase 2: Core Image Processing

• ✅ Image decoding for basic formats (JPG, PNG, BMP)
• ✅ Image resizing logic
• ✅ Encoding to JPG and PNG
• ✅ Basic format conversion

Phase 3: Multi-threading

• ✅ Producer-consumer channel implementation
• ✅ Parallel worker threads
• ✅ Cancellation support
• ✅ Progress tracking

Testing

1. Build the project
2. Drag and drop image files onto the UI
3. Configure output settings
4. Click "Convert" to start processing
5. Monitor progress and statistics

TODO (Phases 4-6)

• Phase 4: Extended formats (WebP, HEIF, JXL, custom ICO)
• Phase 5: Metadata & polish (EXIF, timestamps)
• Phase 6: Advanced features & optimization