Free · No sign-up · Runs in browser

UUID Base64
Converter

Paste UUIDs (one per line) and get compact 22-character Base64 strings — standard or URL-safe. Perfect for databases, URLs, and APIs. Runs 100% in your browser — nothing leaves your device.

UUID Input
Base64 Output
// Base64-encoded UUIDs will appear here…

Batch conversion

Convert multiple UUIDs or Base64 strings at once — just paste them one per line. Perfect for bulk data migrations.

Fully private

All conversion happens in your browser using native APIs. Your UUIDs and tokens never leave your device.

Standard & URL-safe

Choose between standard Base64 (+, /, ==) or URL-safe Base64 (-, _, no padding) — both decode back cleanly.