Base64 Encoder & Decoder

Encode text or files to Base64 and back

๐Ÿ”’ 100% ๋ธŒ๋ผ์šฐ์ € ๋‚ด๐Ÿ†“ ํ‰์ƒ ๋ฌด๋ฃŒโšก ๊ฐ€์ž… ์—†์Œ
์ฐธ๊ณ : ์•„๋ž˜ ํˆด ์ธํ„ฐํŽ˜์ด์Šค๋Š” ํ˜„์žฌ ์˜์–ด๋กœ๋งŒ ์ œ๊ณต๋ฉ๋‹ˆ๋‹ค. UI๋Š” ํ•˜๋‚˜์”ฉ ๋ฒˆ์—ญ ์ค‘์ž…๋‹ˆ๋‹ค. ์ด ํˆด์„ ์˜์–ด๋กœ ๋ณด๊ธฐ โ†’

์‚ฌ์šฉ๋ฒ•

  1. 1
    Paste text or drop a file

    Type or paste text, or upload any file up to your browser's memory limit.

  2. 2
    Pick encode or decode

    Toggle standard or URL-safe Base64 variants.

  3. 3
    Copy or download

    Copy the output or download the decoded file.

Base64 Encoder & Decoder ์†Œ๊ฐœ

Free online Base64 encoder and decoder. Encode any text or file to Base64 (standard or URL-safe), or decode Base64 back to its original form. Handles Unicode, binary files, and data URIs - all in your browser. 712 Tools์˜ Base64 Encoder & Decoder์€ ์ตœ์‹  JavaScript API๋ฅผ ์‚ฌ์šฉํ•ด ์—ฌ๋Ÿฌ๋ถ„์˜ browser์—์„œ ์™„์ „ํžˆ ๋™์ž‘ํ•ฉ๋‹ˆ๋‹ค - server๊ฐ€ ์—ฌ๋Ÿฌ๋ถ„์˜ ๋ฐ์ดํ„ฐ๋ฅผ ๋ณผ ์ผ์ด ์ ˆ๋Œ€ ์—†์Šต๋‹ˆ๋‹ค. ์ฆ‰, ์ฆ‰๊ฐ์ ์ธ ๊ฒฐ๊ณผ, ์™„์ „ํ•œ ํ”„๋ผ์ด๋ฒ„์‹œ, ๊ทธ๋ฆฌ๊ณ  ์—…๋กœ๋“œ ์ œํ•œ์ด ์—†์Šต๋‹ˆ๋‹ค.

debugging ์„ธ์…˜, ๋น ๋ฅธ sanity check, ๋˜๋Š” ํ”„๋กœ๋•์…˜ ์ธ์‹œ๋˜ํŠธ - ์–ด๋–ค ์ƒํ™ฉ์ด๋“  ์ด ํˆด์€ ์›ํ•˜๋Š” ๋งŒํผ ๋ฌด๋ฃŒ๋กœ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์›Œํ„ฐ๋งˆํฌ ์—†์Œ, ๊ฐ€์ž… ์—†์Œ, ํˆด ๋‚ด ๊ด‘๊ณ  ์—†์Œ.

์ž์ฃผ ๋ฌป๋Š” ์งˆ๋ฌธ

What's URL-safe Base64?

It replaces + with - and / with _ so the string can appear in URLs without percent-encoding. Padding = characters are sometimes stripped too.

Does it handle Unicode?

Yes. Text is UTF-8 encoded before Base64 conversion, so emoji and non-ASCII characters round-trip correctly.

Is my file uploaded?

Never. All encoding and decoding runs in your browser via native APIs. Neither text nor file bytes leave your device.

What's the file size limit?

Bound by your browser's memory. Files under 50 MB typically encode instantly; larger files may pause briefly.

๋” ์ฝ๊ธฐ

4 ๋ถ„ ์†Œ์š”

QR code formats: encoding Wi-Fi, contacts, calendars, and payments

A QR code is just text - but the right prefix turns it into a Wi-Fi login, a saved contact, or a calendar invite. Here are the standard formats worth knowing.

5 ๋ถ„ ์†Œ์š”

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The math behind password strength, the myth of the special-character requirement, and how modern password managers changed the whole equation.

๊ด€๋ จ ํˆด

URL Encoder / Decoder

Percent-encode or decode URL components instantly

JWT Decoder

Decode JSON Web Tokens and inspect claims

HTML Entities

Convert special characters to HTML entities and back

Image to Base64

Convert any image to a Base64 data URI - for inline CSS or HTML

Word Counter

Count words, characters, sentences, paragraphs, reading time

Case Converter

Convert text to UPPERCASE, lowercase, camelCase, snake_case, kebab-case, and more