100tools
Text & Data

Base64 Encode / Decode

Encode or decode text using Base64 in the browser.

Related Tools

URL Encode / DecodeURL-encode and decode strings for query parameters and paths.Text & DataTimestamp ConverterConvert Unix timestamps, ISO strings, and picked local date times both ways.Text & DataTOTP GeneratorGenerate one-time codes locally for setup and debugging.Security

Frequently Asked Questions

Does my data leave the browser?

No. Encoding and decoding run entirely in your browser. Your data is never sent to any server.

What is the difference between standard and URL-safe Base64?

Standard Base64 uses + and / characters which have special meaning in URLs. URL-safe Base64 replaces them with - and _ so the output can be used directly in query parameters or path segments without percent-encoding.

Can I encode binary files?

The current version handles text input only. For binary file encoding, use a local tool or the browser's FileReader API in your own code.