Tools That Help You Work Faster
Browse validators, converters, calculators, and web utility tools from one organized workspace.
Validatoren
Jump to a category: Validatoren
HTML Validator
Validate and preview HTML online.
ValidatorenJSON Validator
Validate and format JSON online.
ValidatorenXML Validator
Validate and format XML online.
ValidatorenPHP Validator
Validate and format PHP online.
ValidatorenRegex Validator
Test regex matches and replacements.
ValidatorenEntwickler-Tools
Jump to a category: Entwickler-Tools
SEO Checker
Audit a website for on-page SEO issues and fixes.
Entwickler-ToolsWebsite Ranking Checker
Estimate a page ranking score and prioritize ranking fixes.
Entwickler-ToolsWebsite Keyword Checker
Check keyword placement and density for a website page.
Entwickler-ToolsDiff Checker
Compare text, code, and scripts with side-by-side line diffs.
Entwickler-ToolsCode Beautify
Beautify code and markup for multiple languages.
Entwickler-ToolsAPI Tester
Send HTTP requests and inspect API responses.
Entwickler-ToolsKodierung und Text
Jump to a category: Kodierung und Text
Hash und Sicherheit
Jump to a category: Hash und Sicherheit
MD5 Hash Generator
Generate MD5 hashes from text or files.
Hash und SicherheitSHA256 Hash Generator
Generate SHA256 hashes from text or files.
Hash und SicherheitBCrypt Generator
Generate and verify BCrypt password hashes.
Hash und SicherheitJWT Encoder and Decoder
Encode and decode JWT tokens.
Hash und SicherheitNetzwerk-Werkzeuge
Jump to a category: Netzwerk-Werkzeuge
Ping
Show how long packets take to reach a host.
Netzwerk-WerkzeugeDNS Lookup
Look up DNS records for a domain.
Netzwerk-WerkzeugeWHOIS
List WHOIS contact info for a domain or IP.
Netzwerk-WerkzeugePort Check
Test whether a TCP port is open.
Netzwerk-WerkzeugeReverse Lookup
Get hostname by IP address.
Netzwerk-WerkzeugeProxy Checker
Detect possible proxy indicators.
Netzwerk-WerkzeugeBandwidth Meter
Estimate your download speed from our server.
Netzwerk-WerkzeugeSpeed Test
Measure latency and download speed from our server.
Netzwerk-WerkzeugeNetwork Calculator
Calculate subnet range by network mask.
Netzwerk-WerkzeugeNetwork Mask Calculator
Calculate network mask by host range.
Netzwerk-WerkzeugeCountry by IP
Detect country by IP or hostname.
Netzwerk-WerkzeugeHilfswerkzeuge
Jump to a category: Hilfswerkzeuge
Unit Converter
Convert values from one unit to another.
HilfswerkzeugeTime Zone Conversion
Convert date and time values between global time zones.
HilfswerkzeugeDate Time Calculator
Calculate date-time differences and add or subtract durations.
HilfswerkzeugeAge Calculator
Calculate exact age, total days lived, and next birthday details.
HilfswerkzeugeWebsite Cost Estimator
Estimate website project budget and timeline from scope inputs.
Hilfswerkzeuge