How to Check Emoji and Font Compatibility in Your Browser

Decorative copy-and-paste lettering: Unicode symbols substituted for letters; Bold, cursive or gothic-looking symbols

Font selection: glyphs for the Unicode characters in the text

Noto Emoji: standard Unicode emoji support, including a color emoji font

Browser fallback and glyph coverage

Selected font missing a character’s glyph → browser fallback font for that character

Visible or unchanged emoji: possible fallback rendering

Emoji appearance alone: insufficient evidence of coverage in the selected text font

Unicode presentation sequences: FE0E for text presentation; FE0F for emoji presentation

U+2764 HEAVY BLACK HEART

2764 FE0E: text-style sequence

2764 FE0F: emoji-style sequence

Presentation requests for listed sequences

Identical cross-browser appearance not guaranteed

tomasdev, February 2026 issue comment: reported inconsistent emoji handling between browsers

Noto Emoji: black-and-white emoji font, under active development, available as a variable font

Noto Color Emoji: Unicode-compliant color emoji font

NotoColorEmoji usage documentation: CBDT/CBLC color-font format

Documented CBDT/CBLC support: Android and Chrome/Chromium OS

Format-specific support and reported browser differences: family name alone insufficient to guarantee rendering

Actual intended words and emoji entered together

Local font files compared side by side with library fonts

Accepted files: TTF, OTF, WOFF, WOFF2

up to 10 MB each

Intended font size, line height and letter spacing

Body text at 16 to 20 pixels: open shapes and even spacing

Display font: assessment at its intended large size

Line-height and letter-spacing adjustments: room needed by the font

Same sample repeated in the destination app or browser

Preview: appearance in the checked environment

glyph ownership not established

no reported firsthand test results