Base64 Encode / Decode
Convert text to Base64 and decode Base64 back to text, with full UTF-8 support. Runs locally in your browser.
JWT uses URL-safe Base64 — decode tokens in the JWT decoder · checksums: Hash generator · URL slugs: Slug generator.
How to encode and decode Base64
Type text and click Encode (toggle URL-safe for JWT-style output), or paste Base64 and Decode. Drag a file in to get its Base64, or turn Base64 back into a downloadable file. Full UTF-8 support; everything runs locally.
FAQ
What can I use Base64 Encode / Decode for?
Base64 Encode / Decode is useful when you need to convert text to Base64 and decode Base64 back to text, with full UTF-8 support. Runs locally in your browser. It is meant for quick checks, everyday workflows and practical tasks where a fast browser-based result is enough.
How do I use Base64 Encode / Decode correctly?
Paste the code, data, URL, token or text you want to inspect, then choose any formatting or validation options.
What input does Base64 Encode / Decode need?
Use the fields shown in the tool and keep the input close to the real case you want to solve. If the page includes examples or presets, start with those to understand the expected format.
What result does Base64 Encode / Decode give me?
The tool returns formatted output, decoded data, parsed information or validation feedback for your development workflow. In most cases the output updates instantly and can be copied, downloaded or used as a reference for your next step.
How accurate is Base64 Encode / Decode?
Developer tools are designed for quick inspection, formatting and local checks. Always test production code in your real environment.
Is my data uploaded when I use Base64 Encode / Decode?
The tool is designed to run in your browser, so ordinary inputs are processed locally unless a page explicitly states that it needs an online lookup.
What common mistakes should I avoid with Base64 Encode / Decode?
Avoid assuming formatted or decoded output is production-ready. Validate edge cases in your own runtime before shipping.
What related tasks can Base64 Encode / Decode help with?
Base64 Encode / Decode is intended for use cases related to "base64 encode" and nearby needs such as "base64 decode". For best results, follow the labels, examples and options on the page.
What are the limits of Base64 Encode / Decode?
It is optimized for common web use, not unlimited batch processing or every edge case.
When should I double-check the output from Base64 Encode / Decode?
Double-check the output before pasting it into production code, configuration files or automated workflows.