Base64 인코더 / 디코더
텍스트(UTF-8 안전)와 파일을 Base64로 인코딩 및 디코딩하며 URL 안전 출력을 지원합니다. 모든 처리는 로컬에서 이루어집니다.
사용 방법
Text is encoded as UTF-8, so non-ASCII text works as-is. The URL-safe option replaces + and / with - and _ and drops the = padding. To encode a file, just pick one (10 MB cap) — you also get a ready-made data URL. To turn Base64 back into a file, paste it into the input, set the MIME type and use the download button.
참고 사항
Everything is processed in your browser; files are never uploaded. Decoding to text validates the result as UTF-8, so arbitrary binary data may fail with an error — use the download button for binary content instead.
자주 묻는 질문
How much larger is Base64 output?
About 33%: every 3 bytes become 4 characters.
Can it decode Base64 with line breaks?
Yes, whitespace is ignored when decoding.