Base64 Tool
Encode and decode Base64 locally for quick text handling.
WHY THIS TOOL EXISTS
What is Base64 Encoding?
Base64 turns binary data into text so it can travel through email, HTML, JSON, URLs, and other text-only systems. It is commonly used by developers to embed small files inline, debug API payloads, and inspect JWT tokens. It is a transport format, not protection, so never rely on it to hide sensitive information.
Benefits: Encode or decode text and binary data, supports UTF-8, local-only processing, no upload step, instant conversion with no size throttling, and one-click clipboard copy for fast workflow integration.
Best for: Data URIs, JWT debugging, email transport, moving text through text-only systems, embedding small images in CSS or HTML, and inspecting API request and response bodies.
Limitations and tradeoffs
- Base64 is encoding, not encryption, so sensitive data should not be treated as protected.
- Very large binary payloads can cause high memory usage in the browser.
- Malformed or partial strings can decode with errors depending on source validity.
Read this before you convert
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Next step
Need a different route? Check the next tool in this cluster instead of starting over.
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