WebFont: Font Builder

WebFont is a macOS font utility for web fonts, icon fonts, font conversion, subsetting, and SVG-based font building. Everything runs locally on your Mac. No cloud upload, no external processing, and no account required. What you can do Text to SVG - Convert words, phrases, and multi-line sentences into portable SVG outlines. - Use the currently loaded font to preserve the intended letter shapes. - Adjust font size, variable weight, tracking, line height, wrap width, alignment, padding, and fill color. - Allow or block system fallback fonts when characters are missing. - Copy SVG to the clipboard or save it as a standalone .svg file. - Exported SVG contains outlines, so the font does not need to be installed when the SVG is used elsewhere. Font Builder - Build new icon fonts and web fonts from outlined SVG artwork. - Import a static TrueType source font to add SVG glyphs or replace existing Unicode glyphs. - Keep replacement glyph IDs stable when editing a source font. - Save and reopen .webfontproject packages with embedded source font data, SVG glyphs, build settings, and replacement targets. - Export TTF, WOFF, WOFF2, CSS, demo HTML, and metadata. - Download an SVG template with glyph guides before drawing artwork. - Run Preflight Check before export. Preflight Check - Detect Unicode conflicts. - Detect duplicate glyph names. - Detect empty SVG paths. - Warn about abnormal SVG dimensions. - Warn when artwork exceeds baseline, ascender, or descender expectations. - Flag unsupported SVG features such as text, raster images, masks, filters, clipping, scripts, animation, and external resources. - Warn when a glyph is too complex for stable font output. Font Conversion - Convert between TTF, OTF, WOFF, and WOFF2. - Use Single Font Conversion for one-off jobs. - Use Batch Font Conversion for queue-based workflows. - WOFF2 encode/decode is backed by Google's WOFF2 library. Subset Generation - Create smaller TrueType-based font subsets from selected glyphs, pasted text, or imported .txt files. - Apply Unicode presets for General, Japanese, and Korean character sets. - Export subsets as TTF, WOFF, and WOFF2. - Choose how OpenType layout tables are handled. - Keep or remove selected OpenType feature tags. - Preview glyph count, estimated file size, and missing Unicode mappings before export. Web Package Export - Generate a ready-to-preview web package: - fonts/ - CSS with @font-face and unicode-range - demo.html - metadata.json - Preview glyphs in the included demo page. - Copy HTML snippets for icon font usage. Glyph Asset Export - Export selected glyphs as SVG, PNG, or PDF. - Browse, search, select, and compare glyphs in multiple windows. Reliability - Validates generated fonts before writing outputs. - Checks parser validity, required font tables, cmap coverage, duplicate Unicode mappings, and compatibility warnings. - WOFF and WOFF2 outputs are decoded again for round-trip validation. - Font Builder rejects unsupported or unsafe SVG/font features instead of silently changing them. Privacy - Your font files stay on your device. - No cloud upload. - No external processing. Notes - Font conversion supports TTF, OTF, WOFF, and WOFF2. - Subset generation currently supports TrueType-outline fonts. - Font Builder source-font editing supports static TrueType-based fonts. - Font Builder SVG input should be outlined static artwork, not live text, raster images, filters, masks, scripts, or animation.