A fast, fully offline video & GIF converter for Windows - built by Izzi Developers Inc.
| Feature | What it does |
|---|---|
| Straightforward Navigation | Uncomplicated layout configurations prioritize simple navigation paths, keeping operations functional for general conversion goals. |
| Multi-Format Engine | Supports a broad range of standard visual containers - MP4, MKV, AVI, WebM, and custom web-optimized GIF files. |
| Concurrent Transcoding | Batch threads let you process multiple files simultaneously without interrupting background operations. |
| GPU Acceleration | Interfaces with NVENC, AMF, and Intel Quick Sync to offload heavy encoding from your CPU. |
| Zero Cloud Dependencies | Runs entirely on your local hardware - no telemetry, no internet checks, no remote servers. |
| Execution Console Logging | Line-by-line technical feedback so you can audit conversion metrics and debug configurations. |
| YouTube Downloader | Download videos and audio directly from YouTube with full quality options (144p to 4K). |
| Torrent Downloader | Download files over BitTorrent right inside IZ Converter. |
| TeraBox Downloader | Download files directly from TeraBox links. |
| Download Queue | Add multiple conversions to a queue, reorder by drag & drop, and process them sequentially. |
| Download History | View and manage all past downloads with search, selection, and bulk actions. |
| Splash Screen | Animated splash screen on launch. |
| Notifications | In-app update and notification system. |
| Fully Upgraded UI | Complete interface redesign - cleaner, more modern, and easier to use. |
- Head over to the Releases page and download IZConverterSetup(6.6).exe.
- Double-click the downloaded
.exeto launch the installer. - If Windows Defender SmartScreen pops up, click "More info" → "Run anyway" (the app isn't digitally signed yet).
- Walk through the setup wizard.
- Launch IZ Converter from the Start Menu or Desktop shortcut - you're all set!
- OS: Windows 10 or Windows 11 (64-bit recommended)
- GPU (recommended): NVIDIA (NVENC), AMD (AMF), or Intel (Quick Sync) for hardware acceleration
- Disk space: ~1 GB (2 GB recommended)
- No additional runtime dependencies needed
- Open IZ Converter.
- Drag & drop your video files (or click Add Files).
- Pick your output format - MP4, MKV, AVI, WebM, or GIF.
- Toggle GPU acceleration if your hardware supports it.
- Hit Convert and watch the console log stream in real time.
- Done - your files are ready!
Tip: Drop multiple files at once to take advantage of concurrent transcoding - IZ Converter will process them in parallel batches.
- Video: MP4, MKV, AVI, WebM
- Animated: GIF (web-optimized)
- Downloading: YouTube, Torrent (BitTorrent), TeraBox
- Hardware encoders: NVIDIA NVENC, AMD AMF, Intel Quick Sync
| Problem | Fix |
|---|---|
| SmartScreen blocks the installer | Click More info → Run anyway |
| App won't launch | Right-click the shortcut → Run as administrator |
| Conversion is slow | Enable GPU acceleration if your hardware supports NVENC / AMF / Quick Sync |
| Output GIF is huge | Use the web-optimized GIF preset in the output settings |
Still stuck? Open an issue - we read every one.
- New: Download queue mode with drag & drop reordering
- New: Download history with search and bulk selection
- New: TeraBox downloader - download files from TeraBox links
- New: Feedback form - send feedback directly from the app
- New: Animated splash screen on launch
- New: In-app notification system
- New: DevTools disabled in production (F12/Ctrl+Shift+I blocked)
- Fixed: YouTube "page needs to be reloaded" error - full quality restored (144p to 4K)
- Fixed: Binary path resolution in installed builds (asar unpacked paths)
- Improved: Source code protection via asar packaging
- Improved: CSP updated for all required domains
- Installer: ~302 MB download / ~1 GB installed
- New: YouTube downloader - grab videos and audio in one click
- New: Torrent downloader - download files via BitTorrent
- Fully upgraded UI - complete redesign for a cleaner, more modern experience
- Installer now ~309 MB download / ~989 MB installed
- Improved concurrent transcoding engine - better throughput on large batches
- Expanded GPU acceleration paths (NVENC / AMF / Quick Sync)
- New execution console logging for real-time conversion feedback
- Fixed rare crash on large batches
- Refreshed UI
- Misc. stability improvements
See the full changelog for previous versions.
Bug reports, feature requests, and pull requests are welcome! Please open an issue first to discuss what you'd like to change.
Built with care by Izzi Developers Inc.
- Issues: GitHub Issues
- Email: izzidevelopers@hotmail.com
c 2026 Izzi Developers Inc. - Released under the MIT License.
Made with care - not AI-slop filler