Base64 Encoder/Decoder
Convert text and files to Base64 or restore Base64 to original format
Convert text and files to Base64 or restore Base64 to original format
이 포스팅은 쿠팡 파트너스 활동의 일환으로, 이에 따른 일정액의 수수료를 제공받습니다.
Encode images to Base64 and embed directly in CSS or HTML to reduce HTTP requests and improve loading speed.
Convert binary files to Base64 for safe transmission through email systems or exchanging file data via JSON APIs.
Encode authentication tokens or API keys in Base64 for safe inclusion in HTTP headers (Authorization: Basic).
Convert binary data to text format for storage in JSON files or databases, with the ability to restore to original when needed.
Base64 is an encoding method that converts data to transmittable format, not for hiding information. For security, apply separate encryption measures.
Base64 encoding increases size by about 33%. Direct upload is more efficient for large files. Recommended only for small files under 10KB.
When embedding images as Data URIs, only use for small icons or logos under 10KB. Larger images can cause performance degradation.
The '=' characters at the end are padding to align data length. Never remove them as it will cause decoding errors.
Use Base64 to transmit binary data as JSON in RESTful APIs or GraphQL. Simpler to implement than multipart/form-data.
For large files, split into chunks and encode incrementally to reduce memory usage. Use Web Workers to prevent UI blocking.
Base64 encoding is not encryption. Protect sensitive data with TLS/SSL at transport layer, and apply additional encryption like AES when needed.
btoa/atob supported in IE10+. UTF-8 requires encodeURIComponent preprocessing. Modern browsers should use TextEncoder/TextDecoder.