Generate unsigned, HS256, or decoded-demo JWT strings for local testing and documentation.
Generator
Describe the goal, constraints, and format, then produce copy-ready output that can be refined or saved.
Describe the outcome, format, or constraints.
Create a structured draft or package.
Copy, edit, or save the output.
Paste claims as JSON, then choose the signing mode.
Formatted code, generated types, decoded values, or snippets appear here.
Privacy: This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.
Prompt, options, and generated output
Use the result area as the copy-ready handoff for the next step in your work.
Use JWT Generator when you need to generate unsigned, HS256, or decoded-demo JWT strings for local testing and documentation.
It is designed for quick local checks before you commit code, send a payload, paste into documentation, or hand data to another system.
A: No. Use your own secure server-side secrets for production systems.
A: No. It generates local testing strings only.
Decode and inspect JWT (JSON Web Token) header, payload, and signature without server-side verification.
Generate API keys, secure tokens, passwords, and cryptographic keys with customizable formats.
Format and validate JSON online: prettify large pasted payloads, minify for APIs, and catch syntax errors before deployment.
Format and validate JSON online: prettify large pasted payloads, minify for APIs, and catch syntax errors before deployment.
Convert JSON to Go struct definitions with tags and options.
Convert JSON to TypeScript interfaces or types.
Convert between JSON and YAML formats with preserved structure.
Convert CSV files to JSON and JSON to CSV with custom delimiters.
Format and beautify SQL queries with syntax highlighting.
Privacy: This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.