(01) — TOOLS
Base64, encode and decode.
UTF-8 text to Base64 and back. URL-safe variant (− and _) without padding. It stays in the tab.
At a glance
- Base64 encoder / decoder, free, in the browser.
- UTF-8 text (RFC 4648). URL-safe variant: − _ without padding.
- Not encryption: anyone can decode it.
- Nothing is sent to a server.
(02) — METHOD
Two fields, one alphabet.
01 — Encode
Type on the left. The tool encodes UTF-8 then Base64 (RFC 4648).
02 — Decode
Paste Base64 on the right. Whitespace is ignored. A bad alphabet is flagged.
03 — URL-safe
Swaps + / for − _ and drops = padding. Handy in a query string.
(03) — FAQ
Short answers.
- Is this encryption?
- No. Base64 is encoding, not protection. Anyone can decode it. Use the password generator for secrets.
- Do accents work?
- Yes. Text is UTF-8 then Base64. “été” is not treated as Latin-1.
- Is anything sent to a server?
- No. It stays in the tab.