Free Developer Tool
File Encoder & Decoder.
Convert any binary file (ZIP, PDF, DOCX, etc.) to Base64 text or reconstruct original files from Base64 strings safely.
Offline Secured - No file uploads to server
Source FileNo file selected
Drag & drop file here or click to browse
Supports any file up to 25 MB. Processed entirely in your browser.
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This file seems to already contain Base64 encoded text. Did you mean to decode it instead?
Base64 Text Output0 chars
Base64 string output will render here…
Base64 Output is Very Large
To prevent your browser from lagging, rendering has been limited. The full Base64 text is safely stored in memory.
0 chars
Drag & drop Base64 file or click to browse
Text file containing Base64 string (Max 25MB)
File Details
Reconstructed file details will appear here after decoding.