JWT Tools

jwt.io Alternative — Free JWT Tool

jwt.io is Auth0's JSON Web Token debugger — the most widely used tool for decoding, generating, and verifying JWTs, and a funnel into Auth0's identity platform.

Open JWT Decoder — free

Competitor

jwt.io

Quick comparison

Feature	jwt.io	code.live
Free to use	Yes	Yes
Account required to decode	No	No
Decode header/payload	Yes	Yes
Expiry (exp) check	Yes	Yes
Signature verification with a secret/key	Yes	No

Why consider code.live?

Free, $0 forever — no tiers, no upsells
No account or sign-up required
Runs entirely in your browser

Open JWT Decoder — free

Feature comparison

Feature	jwt.io	code.live
Free to use	Yes	Yes
Account required to decode	No	No
Decode header/payload	Yes	Yes
Expiry (exp) check	Yes	Yes
Signature verification with a secret/key	Yes	No
Encode/generate a new JWT	Yes	No
Multiple signing algorithms (RS256, ES256, etc.)	Yes	Not verified

jwt.io: strengths & limitations

What it does well

Can verify a token's signature against a secret or public key, not just decode it
Has an encoder for building tokens, not only inspecting them
Backed by Auth0's algorithm library — broad signing-algorithm support

Tradeoffs vs code.live

Debugger promotes Auth0's paid identity platform throughout the UI
Verifying against a private key means trusting a third-party site with it — code.live's decode-only tool avoids that by never asking for one

Pricing

jwt.io

Free debugger; Auth0 platform itself has paid tiers

code.live

Free, $0 forever

FAQ

Is code.live a jwt.io alternative?: For just decoding a token to read its header and payload, yes. jwt.io is still the better choice if you need to verify a signature or generate a new token.
Can code.live verify a JWT signature?: No — it decodes and displays the header, payload, and expiry, but doesn't verify signatures or accept a secret key.
Is it safe to decode a JWT on code.live?: Decoding a token doesn't require sharing any secret — but avoid pasting tokens containing sensitive live-session data into any third-party site, including this one.

Related tools

JWT Decoder — free on code.live

Feature

jwt.io

code.live

Free to use

Yes

Account required to decode

Decode header/payload

Yes

Expiry (exp) check

Yes

Signature verification with a secret/key

Yes

Feature

jwt.io

code.live

Free to use

Yes

Account required to decode

Decode header/payload

Yes

Expiry (exp) check

Yes

Signature verification with a secret/key

Yes

Encode/generate a new JWT

Yes

Multiple signing algorithms (RS256, ES256, etc.)

Yes

Not verified

jwt.io: strengths & limitations

What it does well

Can verify a token's signature against a secret or public key, not just decode it
Has an encoder for building tokens, not only inspecting them
Backed by Auth0's algorithm library — broad signing-algorithm support

Tradeoffs vs code.live

Debugger promotes Auth0's paid identity platform throughout the UI
Verifying against a private key means trusting a third-party site with it — code.live's decode-only tool avoids that by never asking for one

FAQ

Is code.live a jwt.io alternative?

For just decoding a token to read its header and payload, yes. jwt.io is still the better choice if you need to verify a signature or generate a new token.

Can code.live verify a JWT signature?

No — it decodes and displays the header, payload, and expiry, but doesn't verify signatures or accept a secret key.

Is it safe to decode a JWT on code.live?

Decoding a token doesn't require sharing any secret — but avoid pasting tokens containing sensitive live-session data into any third-party site, including this one.