Debug a JWT or API token
DeveloperDecode a bearer token, pretty-print JSON claims, and inspect Base64 segments.
3 steps
- Decode JWT
- Format JSON
- Decode Base64
Developer workflow
Spinning up a staging environment means secrets and identifiers that should never be reused in production. This short workflow generates strong passwords, opaque UUIDs, and content hashes you can paste into seed scripts or config files.
Generate passwords, UUIDs, and hashes for dev, QA, and fixture data.
Workflow
Work through each step in order. Progress is saved in this browser. Utilnivo does not save uploaded files permanently between tools.
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Create a strong random password for staging admin or service accounts.
Produce v4 or v7 identifiers for fixtures, orders, or correlation IDs.
Compute SHA-256 or related digests to verify config or payload checksums.
Track progress
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Printable step list with checkboxes—generated on your device.
Results
What you entered and what each step produced appear here. Values used in the next step are passed when supported. Data stays in this browser only.
Run each step and submit the calculator form. Key results will appear here as a connected summary.
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Tips
FAQ
No. Password, UUID, and hash generation run on your device with secure random generation.
No. Generate separate secrets per environment and rotate after team member changes.
Keep going
Decode a bearer token, pretty-print JSON claims, and inspect Base64 segments.
3 steps
Reproduce the request, format the JSON response, inspect JWTs, and compare payloads.
5 steps
Hash the file you downloaded, compare digests, and encode strings when docs ship Base64.
3 steps