About This Tool
Documentation
What does this tool do?
A client-side file encoding engine that converts binary files of any format into standard Base64, URL-safe Base64, or Data URI formats with MIME type detection. It provides instant checksums, byte size analysis, line wrapping (MIME 76 chars), and one-click binary file reconstruction and download.
When should you use it?
Use this tool when embedding raw assets into email templates, transmitting binary payloads across JSON REST APIs, storing small attachments inside NoSQL databases, or decoding raw API file responses into physical documents.
Key Capabilities & Features
Highlights
RFC 4648 compliant Base64 binary file encoding and decoding directly in browser
Drag-and-drop support for all file types (PDF, ZIP, MP3, DOCX, binary blobs)
Instant decoding of Base64 strings back into downloadable original binary files
Real-time file size calculation and Base64 padding overhead estimation
Client-side processing with zero server uploads for complete data privacy