WikiPlus

Free Online Base64 Encoder/Decoder — No Download, No Account Required

Base64 encoding and decoding is a frequent task in web development, API integration, and data analysis — but installing dedicated software just to encode a string is overkill. WikiPlus Base64 Tool at wikiplus.co does it instantly in your browser, with no download, no account, and no data leaving your device. It runs entirely in your browser with no data uploaded to a server, making it safe for encoding API keys, credentials, and private data. Whether you're building HTTP authentication headers, creating data URIs, decoding JWT payloads, or working with binary file encoding, this tool handles it all without any setup.

Why a Browser Tool Is Better for Most Base64 Needs

Privacy: Your Data Never Leaves Your Browser

Supports Both Text and Binary File Encoding

No Account Means No Data Retention

Frequently Asked Questions