📦 Base64 Encoder/Decoder

Codeer tekst naar Base64 of decodeer Base64 naar tekst - direct in uw browser.

Wat is Base64-codering?

Base64 is een binair-naar-tekst-coderingsschema dat binaire gegevens weergeeft in een ASCII-tekenreeksformaat.

Veelvoorkomende Toepassingen

  • E-mailbijlagen: MIME-codering gebruikt Base64 MIME encoding uses Base64 to embed binary files in text-based emails.
  • Data-URL's: Afbeeldingen insluiten in webcode Embedding images directly in HTML/CSS using data:image/png;base64,...
  • API-authenticatie: Basic Auth in HTTP HTTP Basic Auth encodes credentials in Base64.
  • JWT-Tokens: JWT payloads zijn Base64URL-gecodeerd JWT payloads are Base64URL-encoded.

Converts data between binary and ASCII using Base64 encoding. Used for email attachments, data URLs, API payloads, and embedded images.

Key Facts

  • Increases data size by ~33%
  • Uses 64 characters: A-Z, a-z, 0-9, +, /
  • base64url variant uses - and _ for URL safety
  • = padding ensures output is multiple of 4

Frequently Asked Questions

What is Base64?

Binary-to-text encoding using 64-character alphabet. Ensures safe transmission through text-only channels.

Why use Base64?

For email attachments, data URLs, JSON binary data, and HTTP Basic Auth headers.

Is Base64 encryption?

No — it is encoding, not encryption. Anyone can decode it. Use AES/RSA for security.