In-browser, secret-safe
HMAC verification runs locally via Web Crypto — your secret never leaves the tab.
Developer Tool Suite
The developer tools you keep tabbing into Google for.
HMAC verifier, JWT decoder, JSON formatter, request builder, status codes, ID generators — all in one place, all in your browser.
No credit card required · Free plan available
Developer Tool Suite
HMAC verifier
Stripe · sha256 · ✓
JWT decoder
aud, exp, iss
JSON formatter
pretty · diff · path
Request builder
POST · headers · body
Status codes
2xx · 4xx · 5xx
IDs · URL
uuid · base64
What you actually get
Every webhook engineer keeps a folder of one-off utilities. We built a polished, browser-based suite so you stop pasting payloads into shady online formatters: HMAC verifier, JWT decoder, JSON formatter and diff, IDs, status codes, URL tools, and a full request builder.
- HMAC verifier with provider presets
- JWT decoder, JSON formatter and diff, ID and URL utilities
- Status code reference with examples
- Request builder for arbitrary HTTP testing
Why it matters
Built for the moments where minutes turn into hours.
No more shady formatters
Stop pasting customer payloads into ad-laden web tools.
Always one tab away
Linked from the nav and the inspector so they are never far from your workflow.
Use cases
What teams ship with this.
Real situations where developer tools replaces an afternoon of detective work with a single, decisive answer.
- 01
Verify a Stripe signature manually during a 3am incident.
- 02
Decode a customer’s JWT to confirm an expired audience claim.
- 03
Build a custom request to reproduce a bug.
Pairs well with
More of the WebhookScout platform
Set up in under a minute
Ship developer tools this afternoon.
Start free, capture a live endpoint in seconds, and put the whole WebhookScout platform behind your integrations.