Universal Image Converter
Universal Image Converter is a free Windows desktop tool for converting image files between formats, including JPG, PNG, WEBP, TIFF, BMP, HEIC, ICO, and othe…
What Universal Image Converter is
Universal Image Converter is a free Windows desktop tool for converting image files between formats, including JPG, PNG, WEBP, TIFF, BMP, HEIC, ICO, and others. Images can be added by drag-and-drop or through a file browser, and folder batches support custom output naming. The project includes both a graphical interface and a command-line interface, with documented commands for single-image and folder conversions, so it can handle manual use as well as automation and scripting. The interface switches between dark and light themes. Its v2.0.0 release lists error logging and remembering the output folder among its changes, and describes a ZIP package containing the GUI, CLI, screenshots, and readme. Windows downloads are linked from GitHub Releases as a portable app or installer. The app is built with Python, Tkinter, ttkbootstrap, and Pillow; v2 also lists tkinterDnD2. The repository includes an MIT License permitting use, copying, modification, distribution, sublicensing, and sale subject to its terms. The security policy says only the latest major version receives security updates.
Good
- Free and open source under the MIT License.
- Supports batch folder conversion with custom output naming.
- Offers both graphical and command-line interfaces.
- Portable app or installer available through GitHub Releases.
- Dark and light interface themes.
Watch out
- Windows platform only.
- Does not resize images.
- Does not convert color modes.
- Security updates go only to the latest major version.
Who it suits
It suits Windows users who need to convert individual images or folders, including people who want command-line conversion for scripts or automation.
Verdict
Universal Image Converter covers a broad set of formats and provides both visual and command-line workflows. Its Windows-only availability and latest-major-version security policy are worth checking before adopting it.
Plans and prices
From Universal Image Converter's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Free and open-source desktop app; image conversion across multiple formats |
The facts
Each one read from Universal Image Converter's own pages, with the date it was checked.
What it does
- Batch conversion
- The app supports batch folder conversion with custom output naming.checked 8 Oct 2026
- Error handling
- The v2.0.0 release lists error logging and persistent memory of the output folder among its changes.checked 8 Oct 2026
- Formats
- The project lists JPG, PNG, WEBP, TIFF, BMP, HEIC, and other formats, and also names ICO in its description.checked 8 Oct 2026
- GUI and CLI
- The project includes both a graphical interface and a command-line interface for automation and scripting.checked 8 Oct 2026
- Input methods
- Users can add images by drag-and-drop or through a file browser.checked 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.checked 8 Oct 2026
- License
- The repository includes an MIT License that permits use, copying, modification, distribution, sublicensing, and sale subject to its terms.checked 8 Oct 2026
- Purpose
- Universal Image Converter is a desktop tool for converting image files between multiple formats.checked 8 Oct 2026
- Release package
- The v2.0.0 release describes a ZIP package containing the GUI, CLI, screenshots, and readme.checked 8 Oct 2026
- Security updates
- The security policy says the project is in active development and only the latest major version receives security updates.checked 8 Oct 2026
- Technology
- The app is built with Python, Tkinter, ttkbootstrap, and Pillow; the v2 release also lists tkinterDnD2.checked 8 Oct 2026
- Themes
- The interface can switch between dark and light themes.checked 8 Oct 2026
- Vulnerability support
- The maintainer asks users to report vulnerabilities by email and aims to respond within 3–5 business days.checked 8 Oct 2026
Where it runs
- Windows download
- The README describes a Windows-compatible executable available as a portable app or installer, and links to GitHub Releases for downloads.checked 8 Oct 2026
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