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Tools Overview

Zuletzt aktualisiert: 02.05.2026

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163 tools in 11 categories. Use the Hub to browse by category, or press Ctrl + K to search by name, keyword, or description.

Crypto — 12 tools

Hash, encode, sign, and generate secrets.

Tool	What it does
SHA-256	Hashes input using the SHA-256 algorithm (WebCrypto)
MD5	Generates an MD5 hash (browser-side)
HMAC	Computes HMAC with SHA-256/SHA-512
PBKDF2	Derives keys using PBKDF2 with configurable iterations
bcrypt	Hashes passwords with bcrypt
AES-256	Encrypts and decrypts with AES-256-GCM
JWT Decoder	Decodes and verifies JWT headers and payloads
UUID Generator	Generates UUID v4 (RFC 4122)
Token Generator	Generates random hex, alphanumeric, or base64 tokens
htpasswd	Generates htpasswd-compatible bcrypt entries

Convert between formats, encodings, and representations.

Tool	What it does
Base64	Encodes and decodes Base64 (standard and URL-safe)
Hex ↔ RGB	Converts between hex colour codes and RGB values
URL Encode / Decode	Percent-encodes and decodes URLs
HTML Entities	Encodes and decodes HTML entities
Roman Numerals	Converts between Arabic and Roman numerals
CSV ↔ JSON	Converts between CSV and JSON array format
YAML ↔ JSON	Converts between YAML and JSON
TOML ↔ JSON	Converts between TOML and JSON
Binary Tools	Converts text to/from binary, hex, and octal
Bytes Formatter	Formats byte counts into human-readable sizes
Unix Timestamp	Converts Unix timestamps to/from ISO date strings
Number Base	Converts between binary, octal, decimal, and hex
Color Convert	Converts between HEX, RGB, HSL, and HSV
Color Names	Resolves colour names to hex values
Aspect Ratio	Calculates aspect ratios and missing dimensions

Format, validate, parse, and transform code and config.

Tool	What it does
JSON Formatter / Minifier	Pretty-prints or minifies JSON
JSON Validator	Validates JSON and reports parse errors
JSON Query (jq)	Runs jq-style queries against JSON input
JSON Schema	Generates a JSON Schema from a JSON sample
Regex Tester	Tests regular expressions with match highlighting
Cron Parser	Explains cron expressions in plain language
SQL Formatter	Formats and prettifies SQL queries
.env Parser	Parses .env files and shows key/value pairs
Docker Run → Compose	Converts `docker run` commands to docker-compose YAML
Text Diff	Shows line-by-line differences between two texts
Code Indent	Re-indents code between tabs and spaces
API Mock	Generates mock API responses for a given schema
API Status Monitor	Checks HTTP status of a list of endpoints
Container Health Check	Validates Docker health check commands

Subnets, DNS, ports, and firewall rules.

Tool	What it does
CIDR / Subnet Calculator	Calculates network addresses, broadcast, and host range
IP Info / Geo	Looks up public IP information and geolocation
DNS Lookup	Resolves DNS records (A, AAAA, MX, TXT, CNAME)
Port Scanner	Checks if a port is open (browser fetch-based)
MAC Lookup	Looks up the vendor for a MAC address
IPv4 Range	Calculates all IPs in a CIDR range
UFW Rules	Generates `ufw allow/deny` command strings
nginx Config	Generates nginx server block snippets
SSH Keygen	Generates SSH key pair instructions and config entries
CORS Tester	Tests whether a URL allows cross-origin requests
chmod Calculator	Converts between chmod numeric and symbolic modes

Image processing and QR/barcode generation — all in-browser.

Tool	What it does
QR Generator	Generates QR codes for URLs, Wi-Fi, and vCards
Barcode Generator	Generates 1D barcodes (Code 128, EAN-13, etc.)
Favicon Generator	Creates favicon sets from an uploaded image
Image Resize	Resizes images to specified dimensions
Image Crop	Crops images to a defined area
Image Compress	Reduces image file size
Image Convert	Converts between PNG, JPEG, and WebP
Image Flip	Flips images horizontally or vertically
Image Metadata	Reads EXIF and other metadata from image files
Image → Base64	Converts an image to a Base64 data URL
PDF Tools	Creates a PDF from text or image input
Color Picker	Picks colours from an uploaded image

Analyse, transform, and clean text.

Tool	What it does
Word Counter	Counts words, characters, lines, and sentences
Lorem Ipsum	Generates lorem ipsum placeholder text
Case Converter	Converts between camelCase, PascalCase, snake_case, kebab-case
Line Tools	Sorts, deduplicates, reverses, or filters lines
Text Diff	Compares two text blocks and highlights changes
Markdown → HTML	Renders Markdown to HTML
Markdown Lint	Lints Markdown for common style issues
Text Wrap	Wraps text at a specified column width
Slugify	Converts text to URL-friendly slugs

Parse, inspect, and format structured data.

Tool	What it does
CSV Analyzer	Parses CSV and shows column stats
JSON Query	Filters and transforms JSON with jq-style syntax
Table Formatter	Formats data as a Markdown or ASCII table
Docker PS Parser	Parses `docker ps` output into a readable table
IBAN Validator	Validates IBAN numbers and extracts bank info
Open Graph Preview	Previews Open Graph meta tags for a URL
Meta Tags Inspector	Shows all meta tags from a raw HTML input

Calculations, number theory, and formatting.

Tool	What it does
Math Evaluator	Evaluates mathematical expressions
Percentage Calculator	Calculates percentages, increases, and decreases
GCD / LCM	Finds greatest common divisor and least common multiple
Fibonacci	Generates Fibonacci sequences
Prime Checker	Checks whether a number is prime
Number Formatter	Formats numbers with locale-specific separators
Statistics	Computes mean, median, mode, and standard deviation

Unit converters for real-world quantities.

Tool	What it does
Length	Converts between mm, cm, m, km, in, ft, mi
Weight	Converts between mg, g, kg, lb, oz
Area	Converts between m², km², ft², acres, hectares
Volume	Converts between ml, l, fl oz, cup, pint, gallon
Pressure	Converts between Pa, bar, psi, atm
Energy	Converts between J, kJ, kcal, kWh
Speed	Converts between m/s, km/h, mph, knots
Data Size	Converts between bytes, KB, MB, GB, TB (SI and binary)
CSS Units	Converts between px, em, rem, vw, pt
Cooking Converter	Converts cooking measurements (cups, tbsp, tsp)

URL parsing, HTTP, and browser utilities.

Tool	What it does
URL / URI Parser	Breaks a URL into protocol, host, path, query, and hash
HTTP Status Codes	Looks up HTTP status codes and their meanings
Basic Auth Generator	Encodes username:password as a Basic Auth header
Color Palette	Generates a palette from a seed colour
Color Contrast	Checks WCAG contrast ratio between two colours
CORS Tester	Tests cross-origin request behaviour for a URL

Self-hosted infrastructure helpers, tuned for common homelab workflows.

Tool	What it does
Docker Run → Compose	Converts a `docker run` command to docker-compose format
Compose Lint	Validates a docker-compose YAML file
Unraid Template	Generates an Unraid XML container template
nginx Config	Generates nginx server block and reverse-proxy configs
UFW Rules	Generates `ufw` firewall rule commands
SSH Keygen	Generates `ssh-keygen` commands and `~/.ssh/config` entries
htpasswd	Generates htpasswd bcrypt entries for Basic Auth

Hub — browse all categories from the home page
Ctrl + K — fuzzy-search all tools by name, description, or keyword
Tool Browser — sidebar on the Tools page with category filter and text search