Universal offline-first desktop media optimizer to compress videos, images, audio, PDFs and files —
no quality headaches, no watermarks, 100% private offline on your device.

Built with Python + FFmpeg. No subscriptions, no internet required. Your files never leave your computer.

• 🎯 Target-size mode (MB or KB) — "make this under 25 MB" or "this photo under 50 KB". Perfect for email limits and government / exam form uploads (passport photo, signature, PDF size limits). The feature paid tools charge for — free here.
• 🎬 Video — H.264 re-encode with resolution capping (real example: 748 MB → 94 MB, −87%)
• 🖼️ Images — JPEG/PNG/WebP + HEIC (iPhone photos), smart resize (real example: 10 MB → 1.4 MB, −86%)
• 🎵 Audio — MP3 re-encode at chosen bitrate (−80% on WAV)
• 📄 PDF — downsamples embedded images; target an exact KB size for portals
• 📦 Any file/folder — falls back to high-ratio .7z archiving
• 🛡️ Bulletproof — handles locked/empty/huge files gracefully, shows real error reasons, writes a debug log
• 🖱️ Drag & drop + batch processing (compress dozens at once)
• ⚡ Parallel compression — uses multiple CPU cores (~3.3× faster batches)
• 👁️ Before/after preview for images, plus an upfront reduction estimate
• 🎚️ Presets (High Quality / Balanced / Small / Instagram / Email) + Advanced manual sliders
• ⏹️ Live progress bars and a Stop button for long jobs
• 📊 Lifetime stats, remembered settings, light/dark theme
• 🧵 Multithreaded — the window never freezes
• 💾 Handles huge files — streams through disk; a 50 GB video never loads into RAM
• 🪟🍎🐧 Cross-platform — Windows, macOS and Linux

1. Go to the Releases page and download Tukdify-MultiCompressor-Setup-1.1.0.exe (Installer) or Tukdify-MultiCompressor.exe (Portable).
2. Run the installer or launch the portable executable directly. FFmpeg is bundled inside, nothing else to install.

When you run it the first time, Windows SmartScreen may show a blue warning. This is normal for every new open-source app — it appears because the app isn't signed with an expensive certificate yet, not because it's harmful.

To run it: click "More info" → "Run anyway."

You can verify it's safe yourself: the full source code is right here in this repo, and the app makes zero internet connections — everything happens offline on your machine. The warning will disappear on its own as more people download it. 🛡️

In real-world testing performed locally on an 8 GB RAM Windows laptop without cloud processing:

# 1. Clone
git clone https://github.com/Tukdify/Tukdify-MultiCompressor.git
cd Tukdify-MultiCompressor

# 2. Install dependencies (FFmpeg comes bundled via pip — no manual install!)
pip install -r requirements.txt

# 3. Run the app
python main.py

python cli.py video.mp4 photo.jpg scan.pdf --preset small --output ./out
python cli.py --help

The GUI and CLI both call one entry point (engine.py), which routes each file to the right compressor. Nothing in the UI knows about FFmpeg or Pillow — clean separation of concerns.

main.py / cli.py
        │
        ▼
  engine.compress_path()        ← the dispatcher ("brain")
        │
        ├── image_compressor.py   (Pillow + pillow-heif)
        ├── pdf_compressor.py     (PyMuPDF)
        ├── video_compressor.py ─┐(FFmpeg)
        ├── audio_compressor.py ─┘ via ffmpeg_runner.py (shared, cancellable)
        └── archive_compressor.py (py7zr)

  presets.py · config.py · history.py · utils.py   ← supporting modules
  gui/app.py                                        ← the window

pip install -r requirements-dev.txt
pytest -q

pip install -r requirements-dev.txt
python build_exe.py

The bundled app (with FFmpeg inside) appears in dist/Tukdify-MultiCompressor.exe. Attach the standalone binary or the installer to a GitHub Release so anyone can download and run it — no Python needed.

python install_context_menu.py            # adds "Compress with Tukdify MultiCompressor"
python install_context_menu.py --remove   # removes it

Then right-click any file or folder in Explorer → Compress with Tukdify MultiCompressor → the app opens with that file already queued. (Uses HKEY_CURRENT_USER, so no admin rights needed.)

Install the free Inno Setup, then:

python -m PyInstaller tukdify.spec   # 1. build standalone executable
ISCC installer/tukdify.iss          # 2. compile the installer

Produces Tukdify-MultiCompressor-Setup-1.1.0.exe — Start Menu shortcut, desktop icon, optional right-click menu, and a clean uninstaller.

The code is cross-platform. To build a native app, run the same command on that OS (PyInstaller can't cross-compile):

pip install -r requirements-dev.txt
python -m PyInstaller tukdify.spec        # produces a macOS .app / Linux binary in dist/

The right-click menu (install_context_menu.py) is Windows-only; everything else — compression, GUI, drag-drop, presets, parallel jobs — works everywhere.

A ready-made landing page lives in docs/index.html. Enable GitHub Pages → Deploy from branch → /docs in your repo settings and it goes live at https://tukdify.github.io/Tukdify-MultiCompressor/.

Python · FFmpeg (imageio-ffmpeg) · Pillow · pillow-heif · PyMuPDF · py7zr · CustomTkinter · tkinterdnd2

MIT — see LICENSE. Includes a third-party notice for FFmpeg (LGPL/GPL).

Made as a free tool for creators, students and anyone who shouldn't have to pay to make a file smaller. Contributions welcome — open an issue or PR!