Welcome to Fydler UtilityBelt
Your all-in-one suite for essential utility tools. Fast, secure, and easy to use.
Secure
All security sensitive tools run locally in your browser.
Fast
Optimized for speed and minimal overhead.
Free
Completely free to use with no hidden costs.
Explore Our Tools
Security & Authentication
Password Hashing
Argon2, BCrypt, SHA256, and more.
Password Generator
Secure, random password creation.
JWT Decoder
Inspect JWT headers and payloads.
HMAC Generator
Keyed-hash message authentication.
Hash Calculator
MD5, SHA-1, SHA-256, SHA-512 hashes.
Password Strength
Analyze password entropy and strength.
JWT Generator
Create and sign JWT tokens.
Credit Card Validator
Luhn validation with card type detection.
Data & Formatting
JSON Formatter
Beautify or minify JSON data.
JSON Path Validator
Evaluate JSONPath expressions.
XML Path Validator
Evaluate XPath expressions.
Base64/URL Converter
Text and file encoding/decoding.
HTML Entity Converter
Escape or unescape HTML entities.
YAML ↔ JSON
Bidirectional YAML and JSON conversion.
CSV ↔ JSON
Bidirectional CSV and JSON conversion.
Markdown Preview
Live Markdown to HTML preview.
SQL Formatter
Format and beautify SQL queries.
Time & Networking
What's My IP
Your public IP and client details.
CIDR Calculator
IP range and subnet calculations.
Epoch Converter
Unix timestamp to date conversion.
Cron Explainer
Human-readable cron schedules.
URL Parser
Break down URLs and parameters.
DNS Lookup
Query DNS records via DNS-over-HTTPS.
Port Reference
Browse and search common port numbers.
MAC Address Generator
Generate random MAC addresses.
Text & Development
UUID Generator
v1, v4, and v7 UUIDs.
Text Diff
Side-by-side text comparison.
Case Converter
Camel, snake, and kebab case.
Color Converter
HEX, RGB, and HSL conversions.
Lorem Ipsum
Placeholder text generation.
Regex Tester
Test regex with highlight and group capture.
Number Base Converter
Binary, octal, decimal, hex conversion.
UUID Decoder
Decode UUID version, variant, timestamps.
Text Statistics
Word, character, and frequency analysis.
String Utilities
Reverse, trim, pad, and analyze strings.