- Home
- Image Converter Software
- Universal Image Converter
Universal Image Converter
What it is
Universal Image Converter is a free Windows desktop app for converting image files between formats. It lists JPG, PNG, WEBP, TIFF, BMP, HEIC, ICO, and other formats. Images can be added by dragging them into the app or selecting them in a file browser, and folders can be converted in batches with custom output names. The project includes both a graphical interface and a command-line interface, with documented commands for converting one image or a folder; the command-line option is intended for automation and scripting. The interface offers dark and light themes. The v2.0.0 release describes a ZIP package containing the GUI, CLI, screenshots, and readme, and lists error logging and remembering the output folder among its changes. Windows downloads are linked through GitHub Releases as a portable app or installer. The app is built with Python, Tkinter, ttkbootstrap, Pillow, and, in v2, tkinterDnD2. The repository includes an MIT License permitting use, modification, and distribution subject to its terms. The project says security updates go only to the latest major version.
For and against
For
- Converts listed common image formats, including HEIC and ICO.
- Batch folder conversion supports custom output naming.
- Offers both a graphical and command-line interface.
- Portable app and installer downloads are listed.
- Dark and light interface themes are available.
Against
- Windows is the only listed platform.
- Image resizing is not supported.
- Color mode conversion is not supported.
- Security updates cover only the latest major version.
The verdict
Universal Image Converter combines a graphical workflow with command-line conversion at no charge. Its Windows-only availability and lack of resizing and color mode conversion may matter when choosing a tool.
Who it suits
It suits Windows users who need manual or scripted image conversion across listed formats. Folder batches and command-line commands may fit repeatable conversion workflows.
Plans and prices
Free
Free and open-source desktop app; image conversion across multiple formats
Read 8 Oct 2026 · github.com
On the record
- Batch conversion
- The app supports batch folder conversion with custom output naming.github.com · read 8 Oct 2026
- Error handling
- The v2.0.0 release lists error logging and persistent memory of the output folder among its changes.github.com · read 8 Oct 2026
- Formats
- The project lists JPG, PNG, WEBP, TIFF, BMP, HEIC, and other formats, and also names ICO in its description.github.com · read 8 Oct 2026
- GUI and CLI
- The project includes both a graphical interface and a command-line interface for automation and scripting.github.com · read 8 Oct 2026
- Input methods
- Users can add images by drag-and-drop or through a file browser.github.com · read 8 Oct 2026
- Intended use
- The maker describes command-line conversion as suitable for automation or scripting and documents single-image and folder conversion commands.github.com · read 8 Oct 2026
- License
- The repository includes an MIT License that permits use, copying, modification, distribution, sublicensing, and sale subject to its terms.github.com · read 8 Oct 2026
- Purpose
- Universal Image Converter is a desktop tool for converting image files between multiple formats.github.com · read 8 Oct 2026
- Release package
- The v2.0.0 release describes a ZIP package containing the GUI, CLI, screenshots, and readme.github.com · read 8 Oct 2026
- Security updates
- The security policy says the project is in active development and only the latest major version receives security updates.github.com · read 8 Oct 2026
- Technology
- The app is built with Python, Tkinter, ttkbootstrap, and Pillow; the v2 release also lists tkinterDnD2.github.com · read 8 Oct 2026
- Themes
- The interface can switch between dark and light themes.github.com · read 8 Oct 2026
- Vulnerability support
- The maintainer asks users to report vulnerabilities by email and aims to respond within 3–5 business days.github.com · read 8 Oct 2026
- Windows download
- The README describes a Windows-compatible executable available as a portable app or installer, and links to GitHub Releases for downloads.github.com · read 8 Oct 2026
