Encode API payload samples before sharing them in docs or tests.
Base64 encoder / decoder
Convert plain text, JSON, and Unicode content to and from Base64 in a focused workspace built for quick copy, swap, and retry flows.
Quick samplesUseful for testing
Base64 Encode/Decode
About this tool
Use this online Base64 encoder and decoder to quickly convert text, JSON, and Unicode content in a clean browser-based tool.
No signup requiredRuns in your browserInstant results
Decode Base64 values copied from tokens, logs, or browser storage.
Handle Unicode text safely instead of relying on ASCII-only helpers.
Why use this tool?Key benefits
Works instantly
Paste your input and get the result immediately — no page reload, no waiting, no configuration needed to get started.
Your data stays private
All Base64 Encode/Decode processing runs locally in your browser. Nothing you paste is sent to a server or stored anywhere.
Focused workspace
A dedicated page for Base64 Encode/Decode means a clean, distraction-free workspace you can bookmark and come back to anytime.
Frequently asked questionsCommon questions answered
These answers explain common base64 encode/decode tasks, expected input formats, and edge cases so both visitors and search engines can understand what this tool does.
What is Base64 used for?
Base64 is commonly used to safely transport binary or text data through systems that expect plain text, such as API payloads, tokens, email content, and data URLs.
Can this Base64 tool handle Unicode text?
Yes. This tool encodes and decodes UTF-8 text, so values containing characters like emoji or non-Latin scripts are handled correctly instead of being limited to ASCII only.
Why does Base64 decode fail for a normal sentence?
Decode expects an actual Base64 value. If you paste plain text like a sentence or JSON that has not been encoded yet, the tool will reject it and you should switch to Encode instead.
Does Base64 encryption protect sensitive data?
No. Base64 is an encoding format, not encryption. It changes how data is represented, but anyone can decode it back to the original content.