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