Base64 Encoder & Decoder
Decode a Base64 string back to readable text, or encode text into Base64: including URL-safe Base64 and the padded and unpadded variants. Everything happens locally in your browser.
Watch explai answer one real business question
A recording of the product itself. At the top, the question someone types in: roll a promotion that grew revenue 12% out across all European stores. Below it, explai's answer: it checks that claim against the real sales data, shows every reasoning step, and comes back with a chart and a clear recommendation against the rollout. Under 10 seconds, starts by itself, nothing to click.
That was one question, on our data. In measured deployments teams save about three hours per person a day, and a week of repeatable analysis comes back in roughly five minutes. A private sandbox is waiting for your data: upload a CSV and ask your first question in a few minutes.
Questions people ask about this tool
How do I decode a Base64 string?
Paste it and the decoded text appears immediately. UTF-8 is handled correctly, so umlauts, accents and emoji come back intact rather than as mojibake.
What is URL-safe Base64?
Standard Base64 uses + and /, which have their own meaning inside URLs. The URL-safe variant replaces them with - and _ and usually drops the = padding: it is what JWTs and many API tokens use.
Is Base64 encryption?
No. Base64 is an encoding, not encryption: anyone can reverse it in a second, as this page demonstrates. Never use it to hide passwords, tokens or personal data.
Small tools save minutes. Real analysis saves weeks.
explai is an AI data agent that runs the whole analysis: root causes, forecasts, and every answer cited back to your own numbers. The same instant-answer feeling as these tools, on your business data.
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