Tools
Small tools that do one job.
Everything here runs in your browser. No signup, no tracking of what you type, nothing sent to a server. View source if you want to check.
Mailto link generator
Subject, body, cc, bcc: correctly encoded, with the HTML ready to paste.
Email address obfuscator
Three ways to publish an address that humans can read and scrapers mostly can't.
HTML form generator
Contact form or any fields, 11 input types. Semantic markup with real labels, free.
Form migration converter
Paste a Formspree, Web3Forms, FormSubmit or Netlify form. Get it back rewired, field by field.
HTML form converter
Plain HTML in, a React, Vue or Svelte component out. Or the JSON Schema of the fields.
Form to email code generator
Pick your stack, copy working code that emails you form submissions. No SMTP.
Form spam defense checker
Paste a form, get a pass/warn/fail audit of its spam defenses. Nothing uploaded.
JSON to form converter
Paste the JSON you want, get the form that produces it. Types inferred, free.
Webhook signature tester
HMAC-SHA256 over timestamp.body, computed locally. Debug signed webhooks fast.
Form backend pricing calculator
Your monthly volume in, the cheapest plan on each form backend out. Every price dated.
Disposable email checker
Paste addresses or domains, see which are throwaway. Almost 10,000 domains, checked locally.
Honeypot field generator
Hidden-field HTML that screen readers skip, plus the server-side check. Copy and paste.
HTML form debugger
Paste a broken form, get the reason it fails: names, method, enctype, buttons.
Email regex tester
Run addresses through the common email regexes and see where each one breaks.
HTML input pattern generator
Pick a rule, get the pattern attribute, test it against your own values.
GDPR contact form notice generator
The privacy notice a contact form needs, and when a consent checkbox is really required.