Utility
Utility tools for productivity and security
33 tools available
Related collections
Browse utility tools grouped around a specific task.
Password Generator
Generate secure random passwords with customizable options
Anthropic Token Counter
Count tokens for all Claude models and estimate API costs
OpenAI Token Counter
Count text tokens and estimate cost for listed OpenAI model profiles
QR Code Generator
Generate a QR code for text, URLs, contact details, or Wi-Fi
Deepseek Token Counter
Count tokens and estimate costs for Deepseek models
Llama Token Counter
Count tokens and estimate costs for Llama models
Pick Random Item
Randomly select one or more items from a list
Sort a List
Sort items alphabetically, numerically, or in reverse order
Find Unique List Items
Find unique items and detect duplicates in a list
Generate Random Number
Generate random numbers with customizable range and options
MAC Address Generator
Generate random MAC addresses for network testing and development
RSA Key Pair Generator
Generate RSA public and private key pairs for encryption and digital signatures
Sort Numbers
Sort numbers in ascending or descending order
Reverse a List
Reverse the order of items in a list
Find List Length
Count the number of items in a list
OpenAI Cost Calculator
Calculate OpenAI API costs based on token usage and model selection
Find Repeating List Items
Analyze lists to find and count repeating items with frequency analysis
Generate Number Sequence
Generate arithmetic sequences of numbers
Increment Integer Digits
Increment each digit in integers individually
HAR File Viewer
View and analyze HTTP Archive (HAR) files with detailed request/response data
MAC Address Lookup
Look up the IEEE vendor (OUI) for a MAC address
Zstandard Compression
Compress and decompress text data using Zstandard-like compression
Calculate Number Sum
Paste a list of numbers and get the sum, count, and average
Enumerate Integers
Generate a sequence of integers with custom start, stop, and step
Generate Pi Digits
Generate any number of digits of π with high precision
Generate Look and Say Sequence
Generate Conway's look-and-say sequence from any digit seed
Draw Pascal's Triangle
Generate Pascal's triangle with binomial coefficients for any row count
Generate Random Matrix
Generate a random matrix with custom size and value range
Visualize an L-System
Expand and draw Lindenmayer systems with turtle graphics
Generate a Sierpinski Triangle
Draw the Sierpinski triangle fractal at a chosen recursion depth
Generate a Hilbert Curve
Draw a Hilbert space-filling curve for a chosen order
WAV to MP3 Converter
Convert WAV audio to 320kbps MP3 in the browser
MP3 to WAV Converter
Convert MP3 audio to WAV for editing or lossless workflows