All tools run in your browser. No data sent to any server. No signup required.
Format, validate, and beautify JSON. Minify or pretty-print with one click.
Encode text to Base64 or decode Base64 strings. Supports unicode.
Percent-encode special characters for safe URL parameters.
Convert Unix timestamps to dates and vice versa. Seconds and milliseconds.
Capture any webpage as an image. Powered by Chromium.
Generate QR codes with custom colors and sizes. Download as PNG.
Verify email addresses: format, MX records, disposable detection.
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from any text instantly.
Decode JWT tokens. View header, payload, expiration status.
Test regular expressions with real-time matching and capture groups.
Pick colors, convert between HEX, RGB, HSL. Live preview.
DNS records, SSL certificate, CDN detection, technology stack for any domain.
Compare any webpage now vs later. Detect visual changes.