🤖
Optimize Roboto
Quick-start guide for optimal results
90%
Size Reduction
150KB
Before
15KB
After
-320ms
LCP Improvement
1
2
Upload & Configure
Drop the .ttf file below. Sift will auto-detect the 3 variable axes.
3
Recommended Settings
Subset: Latin (covers English, most European languages)
Weight: Keep 100-900 range (or instance to specific weights)
Format: WOFF2 (30% smaller than WOFF)
💡 Match Android system font
Use Roboto for web apps that complement Android apps for visual consistency.
Upload Roboto
Reduce file size by up to 94%. Instance axes, subset glyphs, export WOFF2.
100% client-side — your fonts never leave your browser.
Drag & drop your font here
or click to browse
ttfotfwoff2
Max file size: 5MB