JWT Decoder for Rust
Free online jwt decoder with Rust code examples
Working with jwt decoder in Rust? Our free online jwt decoder helps Rust developers format, validate, and process data instantly. Below you will find Rust code examples using jsonwebtoken so you can achieve the same result programmatically in your own projects.
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Open JWT DecoderRust Code Example
use jsonwebtoken::{decode, DecodingKey, Validation, Algorithm};
use serde_json::Value;
fn main() {
let token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c";
// Decode without verification
let mut validation = Validation::new(Algorithm::HS256);
validation.insecure_disable_signature_validation();
validation.validate_exp = false;
let decoded = decode::<Value>(token, &DecodingKey::from_secret(b""), &validation).unwrap();
println!("{}", serde_json::to_string_pretty(&decoded.claims).unwrap());
}Quick Setup
Library: jsonwebtoken
cargo add jsonwebtoken serde_jsonRust Tips & Best Practices
- Disable signature validation only for reading/debugging
- Use DecodingKey::from_secret for HMAC verification
- The jsonwebtoken crate supports RS256, ES256, and more