📄 Developer

Strong random passwords + meter.

Your public IP address and location, instantly.

Turn a long link into a short, shareable URL.

Paste JSON, get TypeScript interfaces instantly.

Look up A, AAAA, MX, TXT, NS, CNAME records.

Generate 2FA codes offline from a Base32 secret or otpauth URI.

Generate secure v4 UUIDs with format options.

Beautify, minify & validate XML in your browser — no upload.

SHA-1 / 256 / 384 / 512.

Live match, groups, replace.

Live epoch clock, two-way timestamp ↔ date.

Check if an email is valid and its domain can receive mail (MX).

Preview how a URL looks when shared (OG/meta tags).

Calculate IPv4 subnet, mask, broadcast & host range from CIDR.

Look up all HTTP status codes (1xx–5xx). Click to copy.

Check if a website is up or down, with response time.

Decode JWT header & payload locally, nothing sent.

Inspect the HTTP response headers of any URL.

Score password strength and crack time as you type.

Check WCAG AA/AAA pass for any two colors.

Beautify and indent SQL queries.

Decode any cron expression with next run times.

Visually build @keyframes with a live preview.

Minify CSS by removing comments and whitespace.

Strong, memorable passphrases from the EFF wordlist — cryptographically random.

Password-encrypt any file with AES-256, in-browser.

Encode or decode HTML entities in real time.

Measure download, upload, ping and jitter in your browser — no app, no sign-up.

Generate SEO, Open Graph, and Twitter Card meta tags.

Find the MIME type for any file extension.

Convert binary, octal, decimal, hex and custom bases.

Hex, decimal, octal & binary calculator with bitwise ops and shifts.

Read a QR code or barcode from an image or camera — free, in your browser, no upload.

Generate secure random keys in hex or base64.

Turn any text into a clean URL slug.

Build GA tracking URLs with UTM parameters.