Encode tools

Encode and decode Base64, percent-encode URLs, generate SHA hashes, and create UUIDs — all without uploading anything.

Base64 Encode & Decode Online — Free, No Upload
Encode text to Base64 or decode Base64 to text instantly — URL-safe mode, emoji-safe UTF-8, and nothing ever leaves your browser. Paste and convert.
URL Encoder & Decoder Online — Free, No Upload
Percent-encode text or full URLs, decode %XX escapes, and inspect query parameters — instantly, privately, in your browser. Paste a URL and see it parsed.
SHA-256 Hash Generator & Checker — Free, Online
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes of any text and verify them against an expected digest — 100% in your browser, no upload.
UUID Generator Online — v4 & v7, Bulk, Free
Generate UUID v4 (random) and v7 (time-ordered) identifiers in bulk — uppercase, braces, compact formats included. Instant, private, free.