Base64 Encoder / Decoder
Use our free Base64 Encoder / Decoder to encode or decode text, images, JSON, JWT payloads, and API data instantly.
0 Bytes
Plain Text
UTF-8 Support Enabled: Our converter uses the modern
TextEncoder API, ensuring that emojis and special characters are handled correctly without standard encoding corruption.
🔐 Encode and Decode Base64 Instantly
Our Base64 Encoder / Decoder helps you quickly convert plain text, JSON, images, URLs, and API payloads into Base64 format and decode them back instantly.
This tool is perfect for:
- 🌐 API authentication headers
- 💻 Backend debugging
- 🖼️ Image to Base64 conversion
- 🔑 JWT payload inspection
- 📦 JSON transport encoding
- 📧 Email MIME testing
- ☁️ DevOps payload workflows
It supports:
- 📝 Plain text
- 🧾 JSON strings
- 🖼️ Images / data URIs
- 🌐 URLs
- 🔑 Tokens
- 📦 API payloads
Simply paste your input, choose encode or decode, and get instant results.
✨ Key Features
- ⚡ Instant Base64 encode/decode
- 🔐 Text, JSON, and image support
- 🌐 Great for API workflows
- 🔑 Useful for JWT debugging
- 📋 One-click copy output
- 📱 Fully mobile responsive
- 🆓 Free online tool
- 🚀 Fast and secure browser-based use
📌 Why Use This Base64 Encoder / Decoder?
Base64 is widely used in APIs, headers, email systems, and binary-safe transport.
Use this tool for:
- ✅ API auth headers
- ✅ JWT payload checks
- ✅ Image embedding
- ✅ Email MIME testing
- ✅ Data URI generation
- ✅ Backend debugging
- ✅ Safe text transport
🎯 Best For
- 💻 Developers
- ☁️ DevOps engineers
- 🔐 Security learners
- 📦 API testers
- 🧪 QA engineers
- 🎓 Students
- 🚀 Backend teams