ConvertX
C4illin (open-source project)
ConvertX is an open-source file converter that you install with Docker on a server, NAS or office computer and use from the browser like a conversion website, but the files stay on your own network. Behind the interface it runs well-known tools such as LibreOffice, Pandoc, ImageMagick, Inkscape, FFmpeg, Calibre and Assimp, so it converts documents, images, vector graphics, e-books, audio, video and even 3D models. It handles several files at once and several password-protected users. It suits an engineering office that wants an internal conversion service without sending drawings to outside websites. Limitation: it needs basic Docker skills, and an account should be set up right after installation.
Ratings & Reviews
| Licence type | Completely Free, Open Source |
|---|---|
| Licence terms | Open source under AGPL-3.0, free for any use including commercial. There is no official cloud service; you install and run it on your own hardware. Create the first account right after installation; otherwise anyone who reaches the address can register it. |
| Platforms | Linux, macOS, Windows, Runs in the Browser |
| Engineering field | Architecture, Civil Engineering, Electrical & Electronics, Mechanical Engineering |
| Tool type | General Productivity |
| Vendor site | github.com |
This link goes to the vendor site. EngiFree hosts no installers and distributes no cracked versions.
Last verified: 2026-10-16
