🏠 New in Low Baseline Support: Uint8Array base64 and hex conversion

September 5, 2025

caniuse · mdn · spec

The Uint8Array object methods fromBase64(), toBase64(), and setFromBase64() convert to and from base64 strings. The fromHex(), toHex(), and setFromHex() methods convert to and from hex strings.

Source features

• javascript.builtins.Uint8Array.fromBase64 [mdn]
• javascript.builtins.Uint8Array.fromHex [mdn]
• javascript.builtins.Uint8Array.setFromBase64 [mdn]
• javascript.builtins.Uint8Array.setFromHex [mdn]
• javascript.builtins.Uint8Array.toBase64 [mdn]
• javascript.builtins.Uint8Array.toHex [mdn]