Base64 Encoder / Decoder
Developer tools
File Tools
Create ZIP archives, extract ZIP files, or preview batch-renamed copies locally in your browser.
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How it works
Select an operation and choose files. For batch rename, review the numbered names before preparing a ZIP. Download the archive or individual extracted files.
Useful notes
Only the files you choose are processed. Original files are never renamed or overwritten. ZIP supports Store and Deflate; RAR, 7z, encrypted archives, ZIP64, and split archives are unsupported. Limits: 100 entries, 25 MiB per file, 50 MiB expanded total.