Imgo

A free, open-source Windows app for compressing and converting images, videos, and PDF documents.

No cloud uploads. No subscriptions. Everything runs locally on your machine.

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✨ What can Imgo do?

• Compress images — reduce file size with lossy or lossless compression
• Convert images — change between 10+ formats with a single click
• Optimize videos — shrink MP4, WebM, MKV, MOV, AVI files without visible quality loss
• Convert videos — convert between video formats (MP4, WebM, MKV, MOV, AVI)
• Optimize PDFs — compress embedded images and remove bloat
• Batch processing — drag & drop multiple files and process them all at once

Processed files are saved next to the originals — your source files are never modified.

export-1774323548075_optimized.mp4

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📦 Installation

1. Go to Releases
2. Download the latest .exe installer
3. Run it and follow the setup wizard

System requirements: Windows 10 or later.

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🖼️ Supported Formats

Images (convert between any of these)

Format	Compress	Convert
JPEG	✅ Lossy	✅
PNG	✅ Lossless	✅
WebP	✅ Both	✅
AVIF	✅ Lossy	✅
TIFF	✅ Lossless	✅
BMP	✅ Lossless	✅
TGA	✅ Lossless	✅
GIF	✅ Lossless	✅
APNG	✅ Lossless	✅
ICO	—	✅

Import only (read & convert to other formats): PSD, RAW (CR2, NEF, ARW, DNG)

Video (optimization & conversion)

Format	Optimize	Convert
MP4	✅	✅
WebM	✅	✅
MKV	✅	✅
MOV	✅	✅
AVI	✅	✅

Documents

Format	Optimize	Convert to image
PDF	✅	✅

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🎨 Features

• Dark & Light themes — follows your Windows system theme automatically, or set manually
• Quality slider — simple 10-step control for compression strength
• Custom window — modern borderless design with smooth animations
• FFmpeg built-in — no need to install anything extra for video processing
• Settings panel — separate tabs for Images, Video, and Documents with per-format options
• Progress tracking — see real-time progress for each file

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🛠️ For Developers

Tech Stack

Component	Technology
Language	C#
Framework	WPF (.NET 9)
Architecture	MVVM (CommunityToolkit.Mvvm)
DI	Microsoft.Extensions.DependencyInjection
Image processing	Magick.NET
Video processing	FFMpegCore + embedded FFmpeg binaries
PDF processing	MuPDF.NET

Build & Run

# Clone the repo
git clone https://github.com/<username>/Imgo.git
cd Imgo/src

# Restore dependencies and build
dotnet restore
dotnet build

# Run the app
dotnet run

Note: .NET 9 SDK is required. Download it from dotnet.microsoft.com.

Project Structure

Imgo/
├── src/
│   ├── Models/           # Data models (MediaFile, FormatMapper, etc.)
│   ├── ViewModels/       # MVVM ViewModels
│   ├── Views/Controls/   # Custom WPF controls
│   ├── Services/         # Business logic (converters, optimizers)
│   ├── Themes/           # Light & Dark theme resources
│   ├── Resources/FFmpeg/ # Embedded ffmpeg & ffprobe binaries
│   ├── MainWindow.xaml   # Main UI
│   └── App.xaml.cs       # DI container & startup
├── installer/            # Inno Setup script
├── LICENSE               # AGPL-3.0
└── README.md

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📄 License

This project is licensed under the GNU Affero General Public License v3.0.

Third-Party Licenses

Library	License
Magick.NET	Apache 2.0
FFmpeg	GPL v3
FFMpegCore	MIT
MuPDF.NET	AGPL v3
CommunityToolkit.Mvvm	MIT
BrokenEvent.LibIcns	MIT

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❤️ Support

If you find Imgo useful, consider giving it a ⭐ on GitHub!