Chain JAD Font tools to handle real-world workflows: web performance, design systems, GDPR-friendly self-hosting, variable font adoption, and icon font engineering. Every step runs in your browser.
Cut LCP and CLS by trimming, compressing, and preloading your web fonts. The full pipeline from inspection to production CSS.
Project the file-size savings before committing — pick the right charset for your traffic.
Drop unused glyphs and shrink the font by 60–95%.
Compress to the smallest browser-supported format with Brotli.
Emit a multi-format src list with font-display: swap.
Preload critical above-the-fold fonts to improve LCP.
Pick the right display value to balance branding and Web Vitals.
Build a reusable typography token system: family stacks, fluid scale, weight presets, and dark-mode adjustments. Drops straight into Tailwind, CSS-in-JS, or vanilla CSS.
Confirm the brand font's licence, vendor ID, and version before adoption.
Build the fallback stack that matches the brand font's metrics on every OS.
Generate fluid clamp() sizes from xs to 4xl using a chosen ratio.
Wrap the scale, family, and weight tokens as :root variables.
Add a prefers-color-scheme block that fine-tunes weight and spacing for OLED screens.
Move Google Fonts off CDN to your own origin to comply with GDPR (no IP leakage to Google) and improve TTFB.
Paste a fonts.googleapis.com URL → get self-hostable @font-face CSS plus a curl script.
Re-compress any non-WOFF2 source you receive into the smallest browser format.
Re-author the @font-face block with your own paths and unicode-range.
Preload the critical weights to recover TTFB lost from removing fonts.gstatic.com.
Migrate from N static weights to one variable file. Audit your design space and ship the right axis ranges.
Inspect axes, ranges, and named instances exposed by the variable font.
Confirm the size win before swapping — the break-even is around 3 weights.
Expose discrete font-weight values to designers without changing your CSS contract.
Trim axis ranges you don't actually use to save 20–60% on file size.
Bake one instance to a static TTF for legacy browsers without VF support.
Audit a third-party icon font (Font Awesome, Material Icons) or build your own from SVG sources. Trim, rename, and ship the slimmest icon font possible.
Browse every glyph and identify the icons you actually use.
Subset to just the icons you need — typical 50× size reduction.
Map your icon names to stable PUA codepoints starting at U+E000.
Compress for web delivery.