Base64 Tools
Base64 is the universal binary-to-text encoding standard. Encode and decode text, binary data and images to/from Base64, convert JSON objects to URL-safe Base64 strings, decode JWTs and API tokens, compress and decompress data with Gzip, and encode URLs and HTML entities.
2 tools
JSON to Base64 Converter
Encode a JSON object as a Base64 string. Useful for embedding JSON in URLs or HTTP headers.
Base64 to JSON Converter
Decode a Base64 string back to a formatted JSON object. Validates the result is valid JSON.
About Base64 Tools
Base64 is the universal binary-to-text encoding standard. Encode and decode text, binary data and images to/from Base64, convert JSON objects to URL-safe Base64 strings, decode JWTs and API tokens, compress and decompress data with Gzip, and encode URLs and HTML entities.
Common Use Cases
- Encode images as Base64 data URIs for CSS/HTML
- Decode Base64 API tokens and inspect their contents
- Convert JSON objects to Base64 for URL parameters
- Compress text data with Gzip in the browser
- Decode Base64 data in server responses
Frequently Asked Questions
QAre these Base64 tools free?
Yes — all 2 Base64 tools are completely free with no account, no subscription and no paywalls. All processing runs entirely in your browser.
QDoes my data get sent to a server?
No. Every Base64 tool processes data entirely in your browser using JavaScript and WebAssembly. Nothing you paste, type or import is transmitted to any server.
QHow many Base64 tools are available?
There are currently 2 Base64 tools available. Browse them all on this page or use the search bar to find a specific tool.
QDo the tools work offline?
Most tools work offline once the page has loaded, since all processing is client-side. A small number of tools that fetch external assets may require an initial network connection.