Subset TTF/OTF fonts to used characters and export TTF or WOFF — cut webfont weight by 90%. Ship 12 KB instead of 150 KB — local opentype.js work, unlimited saves.
Runs on opentype.js
Content reviewed October 2026 · About Toolzum
Convert fonts between TTF, OTF, and WOFF (WOFF2 accepted as input) with custom-text preview before downloading. Ship web-ready WOFF in one pass — local opentype.js work, unlimited saves.
Draw freehand vectors plus rectangle, ellipse, and line shapes on canvas — color and stroke control included. Sketch icons and diagrams with SVG/PNG export — local Fabric work, unlimited saves.
Generate favicon packages — PNG icons plus Apple touch icons — from one image. Note: the .ico file is PNG data renamed (modern browsers only). Ship every platform icon in one pass — local generation, unlimited saves.
Convert TTF/OTF to WOFF2 subset to only your used characters and cut 50–200 KB fonts to 2–15 KB. Performance engineers fix the render-blocking font in one batch — local opentype.js, 2 free batches a day.
Design simple logos with text, tagline, and 5 preset icons on canvas — export PNG/SVG. Draft startup marks in an afternoon — local Canvas work, unlimited saves.
Latin-only subsets land 85–95% smaller: 150 KB becomes ~12 KB. Biggest single webfont win available.
Site's actual alphabet per language served — English plus each supported locale's set. Missing glyphs render tofu boxes, so audit coverage.
Many commercial licenses forbid subsetting or web use — verify rights before converting client fonts. Open fonts (OFL) subset freely.
No — subsetting runs locally in your browser. Saves never touch a meter — downloads on local tools are unlimited.
Font Converter
Convert fonts between TTF, OTF, and WOFF (WOFF2 accepted as input) with custom-text preview before downloading. Ship web-ready WOFF in one pass — local opentype.js work, unlimited saves.
Typography Preview
Preview font size, line-height, letter-spacing, and weight combos live before committing CSS. Test a 32px/1.5 bold hero in seconds — free, local, no signup.