Font Weight Tester
Preview any font at all 9 weight variants (100–900) with your own text.
Quick Presets
Tip: Type the font name exactly as on fonts.google.com to preview Google Fonts (the font must already be loaded in your browser or imported via a stylesheet).
100 — Thin
The quick brown fox jumps over the lazy dog
200 — Extra Light
The quick brown fox jumps over the lazy dog
300 — Light
The quick brown fox jumps over the lazy dog
400 — Regular
The quick brown fox jumps over the lazy dog
500 — Medium
The quick brown fox jumps over the lazy dog
600 — Semi Bold
The quick brown fox jumps over the lazy dog
700 — Bold
The quick brown fox jumps over the lazy dog
800 — Extra Bold
The quick brown fox jumps over the lazy dog
900 — Black
The quick brown fox jumps over the lazy dog
About Font Weight Tester
Font Weight Tester lets you preview any typeface across all nine CSS font-weight steps — Thin (100) through Black (900) — side by side with your own sample text and a custom size. Paste a headline, body copy, or any string to instantly compare how each weight renders, whether you are choosing between system fonts or evaluating a Google Font for your next project.
Private & free — this tool runs entirely in your browser.