What base64hub is
base64hub collects the tools developers and everyone else need when they meet Base64: encoding and decoding text in any charset, turning images and files into data URIs and back, reading JWTs, certificates and Kubernetes secrets, and converting between Base64, hex, Base32, Base58, Base85 and other encodings.
The rules we build by
Your data stays on your device. Every tool runs in your browser. The pages may not make network requests other than Cloudflare’s page-view count, which the browser enforces through a Content Security Policy. The privacy page explains how to verify it.
Correct output first. Each encoder is checked against the relevant specification (RFC 4648 for Base64, Base32 and Base16, RFC 9285 for Base45, and so on) and against reference implementations such as Python’s base64 module.
No sign-up, no limits. Large files are processed in chunks so the browser stays responsive. When a result is too big to show on screen, you can save it as a file instead.
Explanations with every tool. Tool pages tell you what the options mean and what typical errors look like, and the Learn section covers how Base64 works in depth.
Feedback
Missing a format or found a bug? Contact us. Tool requests shape what we build next.