JWT
JWT Generator
Output
Size: 0 bytesLines: 0
JWT Generator — Create JWT from JSON Online Free
What is JWT Generator?
Create a JWT from a JSON payload. Paste a JSON object; output is header.payload (unsigned; add signature in your app).
Encode a JSON payload as JWT header and payload (base64url). Signing must be done in your application.
How to Use JWT Generator
- Paste or type your input into the editor on the left panel.
- Results update automatically while you type. You can also press Ctrl+Enter to force a refresh.
- View the result in the output panel on the right with full syntax highlighting.
- Use Copy or Download to export the result.
- Drag and drop
.jsonor.txtfiles directly into the editor.
Example
Input:
{"sub":"user123","exp":9999999999}Output:
eyJhbGc... (unsigned)
Common Use Cases
- Testing JWTs
- Learning JWT format
- Payload encoding
Common Errors
Why Use Our JWT Generator?
- 100% client-side — your data never leaves your browser. No server processing, no data collection.
- No sign-up required — start using the tool instantly with no registration or installation.
- Keyboard shortcuts — press Ctrl+Enter to run, ? for shortcuts list, Ctrl+B to toggle sidebar.
- Persistent state — your input is automatically saved across sessions using local storage.
- IDE-style interface — Monaco Editor (the engine behind VS Code) with syntax highlighting and error detection.
- Multi-format conversion — convert between JSON, XML, CSV, and YAML without switching tools.
Frequently Asked Questions
Is the JWT signed?
No. This tool outputs header.payload; you add the signature with your secret in your app.
What is the payload?
Any valid JSON object (e.g. sub, exp, custom claims).
Try JWT Generator Now
Paste your data into the editor above for instant processing. Use Ctrl+Enter anytime to re-run quickly.
Related Tools
All Developer Tools
HomeUtility ToolsJSON FormatterJSON ValidatorJSON MinifierJSON to XMLBase64 Encode/DecodeJSON to CSVJSON to YAMLCSV to JSONJSON DiffJSON Schema GeneratorYAML FormatterYAML to JSONXML FormatterXML ValidatorXML to JSONJWT DecoderJSON ViewerJSON ParserJSON Pretty PrintHTML FormatterURL EncoderURL DecoderBase64 EncoderBase64 DecoderJSON to TypeScriptJSON to PythonJSON to JavaJSON to GoJSON to C#JSON to DartJSON to RustJSON to KotlinJSON to SwiftJSON to PHPJSON CompareJSON SorterJSON EscapeJSON UnescapeJSON EditorString to JSONJSON to StringJSON String to ObjectParse JSON StringJSON to HTML TableJSON to SQLJSON to ExcelJSON to TSVJSON to One LineLorem Ipsum GeneratorUUID GeneratorRandom JSON GeneratorTimestamp ConverterRegex TesterHash GeneratorColor ConverterText Case Converter