dp4 Font Viewer review
A capable free font inspector for Windows, with detailed filtering and comparisons.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
dp4 Font Viewer is free Windows software for viewing and managing OpenType and TrueType fonts. It suits designers, developers and other Windows users who need to inspect font collections, compare typefaces and review font details without installing the application itself. Support for German and English, along with high-DPI interface scaling, adds flexibility for different work environments.
Its standout strength is the depth of its inspection and filtering tools. Users can compare multiple fonts simultaneously, filter by type, class, width and weight, and narrow results by PANOSE style or Unicode range. The application also shows font metadata, glyphs, Unicode values and custom text. Temporary font installation and deletion help users assess fonts without making permanent changes, while printing tools can produce individual font or font-list printouts.
The main trade-off is its narrow platform and format scope. dp4 Font Viewer is designed for Windows and currently handles only OpenType and TrueType fonts, so it is not a fit for users who need macOS or cross-platform support or workflows centered on other font formats. Its portable operation, command-line parameters and free pricing make it a practical choice for focused font inspection and management. Users seeking broader platform coverage, wider format support or more active freeware updates should choose a different tool.
dp4 Font Viewer pros and cons
- Where it wins
- Strong filtering by attributes, PANOSE styles and Unicode ranges
- Compares multiple fonts and displays metadata, glyphs and custom text
- Portable, free to use, with temporary installation and command-line support
- Where it doesn't
- Windows-only platform support
- Handles only OpenType and TrueType fonts
- Updates are limited because code-signing costs are not acceptable for freeware
dp4 Font Viewer fact sheet, pricing and score →
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