Decode JWT tokens and check expiration. Get header, payload, and time until expiry.
jwt
token
decode
+3
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JWT Decoder
Decode JWT tokens and check expiration status.
What it does
decode_jwt — decodes a JWT token.
- Returns header (algorithm, type)
- Returns payload (claims, user data)
- Returns expiration status
check_jwt_expiry — checks if a token is expired.
- Returns time until expiry (or time since expiry)
- Human-readable format ("Expires in 2 hours")
Why use it
- Developers — debug JWT issues during development
- Support teams — check if customer tokens expired
- Security audits — inspect token contents
- API debugging — verify claims in tokens
⚠️ Note
This tool decodes JWTs (base64) — it does NOT verify signatures. Use it for inspection, not security validation.
Pricing
- Free: 50 requests/day
- Pro: $5/month — 1,000 requests
- Pay-as-you-go: $0.01 per request