Utilities
Base64 Encoder
Encode any file to Base64 text, or decode a Base64 text file back to binary.
Works entirely in your browser — nothing to installFiles processed privately in an isolated workerAuto-deleted 60 minutes after uploadNo account required to start
Upload files
Drag & drop files here, or click to choose from your device.
Accepted: */*
Maximum 25 MB per file, up to 1 file. Files are temporary and expire automatically after the configured retention window.
Accepts any fileUp to 25 MB
About this tool
Convert binary files to Base64 strings for safe text transport, or reverse the process.
Common uses
Encode images for CSSEncode files for JSON payloadsDecode Base64 attachments
Good to know
Files never leave the secure pipelineAuto-deleted 60 minutes after uploadNo account required to start
Frequently asked questions
Encoded output is a .b64 text file with 76-character line wrapping. Decoded output is a .bin binary file.