Base64 tools
Encode and decode Base64 for text, JSON, HTML, and URL-safe payloads in your browser — private, no upload.
Base64 shows up whenever you need to move binary-safe data through text channels: JSON APIs, data URLs, email, and config files.
This topic hub groups our Base64 encoder and intent-specific landings so you can pick the format you actually paste — without sending payloads to a server.
Why these tools
- All Base64 tools run client-side by default
- Intent pages focus examples/FAQs on text, JSON, HTML, or URL use cases
- Encoding is not encryption — treat secrets accordingly
- Base64 Encode / Decode
Encode UTF-8 text to Base64 or decode Base64 back to text — instantly in your browser.
- Base64 Encode HTML
Encode HTML fragments and markup to Base64 for data URLs, emails, and embeds — decode back in your browser.
- Base64 Encode JSON
Encode JSON payloads to Base64 for APIs, JWTs, and transport — decode back to UTF-8 JSON in your browser.
- Base64 Encode Text
Encode plain text notes, messages, and Unicode strings to Base64 in your browser — private and instant.
- Base64 Encode URL
Encode URLs and query strings to Base64 for opaque links and redirects — distinct from percent-encoding.