Usage

A practical workflow from import and filtering to subset output and web packaging.

1. Import fonts

• Drag and drop a font file into the main window.
• Or use File -> Import Font File.
• Glyph browsing import supports: ttf / woff / woff2.
• Each new import replaces current session data (no multi-font merge in one session).

2. Browse and filter glyphs

• Use the left sidebar to filter by Unicode blocks (Basic Latin, CJK, Emoji, and more).
• Use search to filter by glyph name or Unicode text.
• Selection shortcuts:
  • Command + Click: non-adjacent multi-select
  • Shift + Click: range select
  • Command + A: select all
  • Delete: remove selected glyphs from current dataset
  • Space: preview selected glyph

3. Inspect metadata

The right inspector has three tabs:

• Font: font metadata, OpenType layout/script/feature summary, variable-font detection.
• Selection: glyph-level data such as Unicode, HTML entity, CSS/Swift notation, UTF encodings, and metrics.
• Export: asset export, subset generation, and web package workflow.

4. Export glyph assets (SVG / PNG / PDF)

• Works for single glyph and multi-selection batch export.
• Export dialog includes size and color controls.
• Output filenames are based on glyph names plus size suffixes.

5. Generate subset fonts

Source mode

• Current Selection: use selected glyphs directly.
• Text Input: paste text or import .txt, then match available characters in the loaded font.

Output formats

• Choose any combination of WOFF2, WOFF, and TTF.

OpenType controls

• Layout policy:
  • Preserve all layout features
  • Keep essential positioning only
  • Remove all layout tables
• Feature-tag filter:
  • Keep only selected tags
  • Remove selected tags
  • Or disable filtering and keep all available tags

Validation and preview

• Subset Preview shows glyph count, estimated file size, and missing character count.
• Validation runs before writing files (decode checks, required tables, cmap coverage, and related warnings/errors).

6. Generate web package

Generate Web Package creates:

• fonts/ with WOFF2 + WOFF
• a CSS file with @font-face and unicode-range
• demo.html for preview and character mapping reference

7. Convert font formats

• Single Font Conversion...: convert one file.
• Batch Font Conversion...: queue-based conversion.
• Conversion input supports: ttf / otf / woff / woff2.
• Conversion target supports: WOFF / WOFF2 / TTF/OTF (Auto).

8. Current limitations

• Subset generation supports one source font at a time.
• Subset output currently supports TrueType-outline fonts only.
• Variable fonts are detected and can still be exported as variable fonts.
• Exporting a baked static instance from custom axis values is not currently supported.
• Some advanced batch-conversion controls are reserved UI and not active in the conversion pipeline yet.