Cross-platform clipboard copy and paste in one function call
Filesystem state snapshots with diff comparison
Composable data transformation pipeline with lazy evaluation.
Lightweight task dependency engine with topological execution
System metrics collector for CPU, memory, disk, and network
Infer JSON schemas from sample data
Git-based changelog generator from conventional commits
Flatten nested JSON/dicts into dot-notation keys and unflatten back
Deep merge dictionaries safely with conflict resolution
Show how long each Python import takes during startup
Convert between color formats: hex, RGB, HSL, HSV, CMYK, and named CSS colors
Generate random readable strings for various purposes
Convert strings between camelCase, snake_case, PascalCase, kebab-case, and more
Access and mutate deeply nested dicts using dot-notation paths
Show character-level differences between two strings with colored terminal output
Convert numbers between any base (2-62) with human-friendly APIs
Render data as clean ASCII/Unicode tables in the terminal with zero configuration
Temporarily set, override, or remove environment variables with a context manager
Parse and format human-readable duration strings like "2h30m" or "1 day, 3 hours"
Safely access nested dictionary keys without exceptions
Truncate strings intelligently without cutting words
Turn Python stack traces into cleaner, more readable output
Convert timestamps to relative time phrases like '3 hours ago'
Measure execution time of any function
Remove tracking parameters from URLs
Convert byte counts to human-readable strings and back, with formatting options
Automatically mask sensitive values (API keys, passwords, tokens) in logs and print output
Ensure a function runs only once, regardless of how many times it's called
Split iterables into evenly sized chunks
In-memory vector store with multi-metric similarity search.
Compare configuration files across environments
Decorator and utilities for deprecating functions, parameters, and classes with zero boilerplate
Practical utilities for Python enums — lookup, validation, listing, and serialization
Convert bytes to human-readable file sizes and back
Dead-simple terminal spinners and progress indicators for CLI scripts
Add a timeout to any function call, sync or async.
Parse, compare, bump, and validate semantic version strings
Layered configuration loader merging env vars, files, and defaults.
Readable JSON comparison with colorized terminal output.
HMAC-based webhook signature generation and verification with timing-safe comparison
Debounce and throttle decorators for Python functions.
Named timers for measuring multiple operations within a function or script
Run multiple functions in parallel and collect results with the simplest possible API
Parse strings into Python types intelligently — booleans, numbers, dates, None, lists
Enhanced CSV reader and writer with automatic type inference.
Type-safe prompt template builder for LLM APIs.
Lightweight dependency injection container for Python.
LAN device discovery and TCP port scanning
Lightweight finite state machine with guards, callbacks, and visualization.
Schema-based environment variable validation with type coercion and helpful error messages
Batch processing with progress tracking and error handling.
Email validation with syntax checking and normalization.
Cron-like task scheduler with overlap prevention and interval support.
Thread-safe singleton and multiton pattern decorators.
Common datetime operations missing from the standard library.
URL slug generation with transliteration and uniqueness.
Automatically detect and mask secrets in strings and dicts.
Decorator-based CLI framework with rich output
Terminal text styling with zero dependencies and TTY detection.
Type-safe environment variable loading with casting and defaults.
Simple feature flags with percentage rollout and user targeting.
In-memory rate limiter with sliding window, token bucket, and leaky bucket algorithms.
Lightweight in-memory cache with TTL, LRU eviction, and tag-based invalidation
Type-safe event emitter with sync and async listener support
Minimal JWT creation and validation with HMAC and RSA signing.
Cursor and offset pagination utilities for any data source.
Drop-in ASGI/WSGI middleware for endpoint timing
Lightweight web scraper with rate limiting and CSS selectors.
Format Python data as aligned terminal tables with no dependencies
Rust-inspired Result type for Python with pattern matching and type-safe error handling
Circuit breaker pattern for fault-tolerant service calls.
Resilient HTTP client with automatic retries and backoff.
Async retry with exponential backoff, circuit breaker, and cancellation for Python
Check if a port is open on a host
Precise monetary calculations using integer cents with currency support and formatting.
JSON encoder that handles datetime, Decimal, UUID, dataclasses, and sets without crashing.
Health check endpoint builder for web applications.
Generate realistic fake data for testing without external dependencies
Lightweight test data generation with realistic fake values.
Detect unused packages in requirements.txt by scanning imports
Pre-built, tested regex patterns for common data formats.
Simplified MQTT pub/sub wrapper with auto-reconnect
Filesystem event watcher with decorator-based callbacks
Structured JSON logging with automatic context propagation.
Drop-in structured JSON logging for Python using the stdlib logging module
Pretty-print and format SQL queries for debugging
Parallel map with a built-in terminal progress bar
Content-hash duplicate file detection with two-pass efficiency
Rule-based file sorting engine with pattern matching and dry run support
Prevent duplicate script execution using file-based locking
Structured log filtering and highlighting for terminals
Simplified hashing helpers for strings, files, and checksums
Automatically generate CLI interfaces from function signatures and docstrings
Git repository statistics and commit analysis
Runtime type checking decorators for function arguments
.env file parser with interpolation and multi-file support