Convert ZIP files to Base64 text strings or decode Base64 back into a ZIP file. Fast, free, 100% browser-based and secure.
Upload a ZIP file to encode to Base64, or paste a Base64 string to decode to a ZIP.
Review the encoded text block or verified zip properties.
Download the decoded ZIP or copy the Base64 text string with one click.
Your data is processed entirely inside your browser using client-side JavaScript. Nothing ever travels over a network to any server — making BunchTool the most private option available.
Because everything runs locally in your browser, there are no upload queues or server wait times. Results appear in seconds regardless of your internet speed — or even without any connection at all.
Convert ZIP files to Base64 text representation or extract ZIPs from raw text structures in your browser sandbox with zero latency.