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Prüftools
Prüfen, validieren und inspizieren — Passwörter, E-Mails, JWTs, Regex und mehr — ganz ohne Upload.
21 Tools verfügbar
Affiliate Link Checker
Paste a list of affiliate links and check which are broken.
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PDF Page Counter
Drop in a PDF and instantly see page count, file size, and stats.
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Fake Pay Stub Checker
Spot the red flags of a fake pay stub before renting or lending.
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JWT Decoder
Decode JSON Web Tokens to inspect claims without verifying.
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Regex Tester
Test regular expressions live with match highlighting.
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Cron Expression Parser
Decode cron expressions into human-readable schedules and next runs.
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Color Contrast Checker (WCAG)
Check if two colors meet WCAG accessibility contrast ratios.
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Password Strength Checker
See how long it would actually take to crack a password, in your browser.
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Email Address Validator
Validate email syntax, detect role-based & disposable addresses, locally.
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Keyword Density Checker
See which words and phrases appear most in any text — useful for SEO.
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IBAN Validator
Validate any IBAN for length, format, and mod-97 checksum.
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Credit Card Validator (Luhn)
Check if a card number is well-formed and pass the Luhn check — without sending it anywhere.
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Phone Number Formatter & Validator
Format and sanity-check phone numbers by country.
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Image EXIF / Metadata Viewer
Drop in a photo and see its camera, GPS, and timestamp metadata.
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IPv4 Subnet Calculator
Enter a CIDR and get the network, broadcast, range, and usable hosts.
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Email Subject Line Tester
Score a subject line for length, spam triggers, emoji, and personalization.
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Image Metadata Remover
Export a fresh copy without EXIF and location metadata.
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Image Dimensions Inspector
Inspect pixels, megapixels, aspect ratio, format, and file size.
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JSON Path Finder
Read a nested JSON value using dot and bracket paths.
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MIME Type Lookup
Look up common MIME types by extension or name.
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HTTP Status Code Lookup
Explain HTTP response codes and their usual meaning.
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Weitere Kategorien entdecken
Rechner
Zahlen im Griff.
Generatoren
Alles generieren.
Formatierer
Text aufräumen.
Konverter
Einheiten blitzschnell umrechnen.
Tracker
Immer im Zeitplan.
SEO
Schlauer ranken.
Ingenieurwesen
Schlauer bauen.
YouTube
Kanal zum Wachsen bringen.
Gaming
Schärfer spielen.
Musik
Richtig abmischen.
Investieren
Schlauer investieren.
Gesundheit & Fitness
Stärker leben.
Heim & DIY
Macht es heimisch.
Reisen
Schlauer reisen.
Produktivität & Lifestyle
Schneller entscheiden.
Fotografie
Bilder schärfen.
Autos
Sparfaktor Auto.