Open-source alternatives to Proselint

LanguageTool is a multilingual grammar and style checking engine designed to detect spelling, grammar, and writing errors across multiple languages. It provides automated proofreading capabilities that can be deployed as a self-hosted server or executed as a standalone local desktop application. The project distinguishes itself through a flexible rule development framework, allowing linguistic patterns to be defined via XML or implemented as custom Java classes. It utilizes n-gram frequency modeling for confused word detection and supports neural word embeddings to improve disambiguation betw

Alex is an inclusive language linter and content auditor designed to detect and flag insensitive, inconsiderate, or gendered phrasing. It serves as a profanity detection tool that identifies offensive words based on configurable certainty ratings to ensure professional and neutral content. The tool distinguishes itself through diff-aware analysis, allowing it to function as a continuous integration validator. By analyzing pull request deltas, it can flag new insensitive phrasing while ignoring existing legacy issues to prevent old warnings from blocking new merges. The project supports multi

This project provides a framework for performing data science tasks using command-line tools and scripts. It focuses on the processing and analysis of text and structured data directly within the terminal. The approach centers on using Unix pipes to stream data between independent processes and employing shell scripting to automate repetitive data science workflows. It utilizes plain-text interchange formats, such as CSV, to move information between diverse utilities. Capability areas include text-based data processing, command-line data analysis, and terminal-based data visualization. These

Tailspin is a regex-based text colorizer and terminal log viewer designed to transform plain text streams into colorized output. It functions as a command line log highlighter and tailer that applies syntax highlighting to logs using regular expressions. The tool distinguishes itself through its ability to monitor files in real time and pipe live output through a highlighter. It recognizes and colors common data types such as IP addresses, UUIDs, HTTP methods, JSON objects, dates, and memory pointers. Users can define custom highlight styles and regex patterns to assign specific colors to uni

Translate-shell is a command-line translation tool and terminal dictionary client. It allows for the translation of words, phrases, and sentences between multiple languages and provides dictionary definition retrieval and language metadata display directly within the terminal. The tool functions as a shell-based text translator that can process input from standard streams, local files, or URLs. It includes text-to-speech capabilities to play audio pronunciations of source and translated text and can automatically detect the source language of a given string. The system supports interactive s

gts provides standardized utilities for project bootstrapping and the application of consistent linting and formatting style guides. It functions as a TypeScript project bootstrapper that initializes new projects with standardized dependencies, build scripts, and compiler settings. The project implements a comprehensive TypeScript style guide consisting of a predefined collection of rules for static analysis and a code formatter that automatically adjusts source code spacing and syntax. These tools identify and fix code style violations to ensure uniformity across codebases. Additional capab

Shell GPT is an AI-powered command-line interface that generates shell commands and source code from natural language prompts. It serves as a terminal-based tool for automating technical tasks, producing executable commands, and generating code snippets directly within the shell. The tool distinguishes itself through a read-eval-print loop for interactive chatting and the ability to maintain stateful conversational history via named sessions. It supports flexible backend routing, allowing users to connect to cloud-based APIs or local language model hosts for offline operation and data privacy

JSHint is a JavaScript static analysis tool and linter designed to detect errors and enforce coding standards. It functions as a syntax validator that scans source code to identify potential logic problems and programming mistakes before the code is executed. The tool provides a command line interface for analyzing files and directories. It supports the export of analysis results into standardized formats such as Checkstyle for integration with external build tools. Analysis is managed through a system of linting rule management and environment global configuration. This includes the ability

This project is a static analysis engine designed to identify patterns, enforce coding standards, and automate code quality improvements in software projects. By parsing source code into structured abstract syntax trees, it enables deep programmatic inspection and the automated remediation of identified programming issues. The engine functions as a pluggable linting framework, allowing developers to extend its core capabilities through a modular architecture. Users can inject custom rules, parsers, and processors to support non-standard file formats or domain-specific logic. This extensibilit

autopep8 is a Python static code styler and formatter designed to automatically rewrite source code to comply with the PEP 8 style guide. It functions as a recursive code cleaner that identifies and fixes indentation, whitespace, and syntax irregularities across entire projects. The tool performs structural refactoring using abstract syntax tree transformations to execute non-whitespace changes, such as shortening long lines and improving identity tests. It includes an aggressive refactoring mode for complex style violations and supports selective formatting via inline markers to disable chan

HTMLHint is an HTML linter and static analysis tool designed to identify structural errors and syntax violations in source code. It functions as a configurable validator that scans local files and remote URLs to detect malformed tags, duplicate IDs, and document structure inconsistencies. The tool serves as an accessibility auditor, verifying that web elements include necessary labels and alternative text for images. It further distinguishes itself by enforcing web document compliance, checking for the presence of doctypes, language attributes, and head metadata. The project covers a broad r

doctoc is a markdown table of contents generator and file processor designed to automatically create and update linked lists of headings within markdown documents. It functions as a git repository documentation tool that scans local directories to ensure navigation remains consistent across a collection of files. The tool features a GitHub compatible anchor generator that formats heading links to match the specific requirements of GitHub and similar hosting platforms. It manages updates by locating marker comments to replace existing tables of contents without overwriting other document conte

TSLint is an extensible static analysis tool that checks TypeScript source files against a configurable set of lint rules. It scans code by walking the parsed TypeScript abstract syntax tree, applying rule objects to detect readability, maintainability, and functionality errors. The tool supports rule severity configuration, inline suppression through comment directives, and automatic attachment of fix objects for correcting violations. The project provides a framework for developing custom lint rules and formatters, allowing teams to enforce project-specific coding conventions beyond the bui

Skim is an interactive text filter and terminal selection tool written in Rust. It functions as a command line interface utility that processes input streams to isolate specific entries through real-time user queries and sorting. The tool differentiates itself through ANSI compatibility, allowing it to parse color codes and maintain text formatting during the search process. It supports multiple matching strategies, including configurable fuzzy matching algorithms and regular expression integration. The application covers a broad range of capabilities including field-specific filtering, resu

Hint is a web development linter and static analysis tool that audits HTML, CSS, and JavaScript. It provides a suite of specialized validators designed to ensure compliance with accessibility standards, web security header requirements, and general development best practices. The project distinguishes itself by analyzing a wide range of web quality metrics, including browser compatibility for CSS and JavaScript features and PWA configuration validation. It also includes an analyzer for measuring page load speeds, caching, and compression strategies to optimize web performance. The system is

gdu is a command line disk usage analyzer and interactive disk profiler used to scan directories and visualize space consumption across file systems. It functions as a file system management tool that allows for the identification and removal of large files and folders to free up storage. The tool features a cursor-based interface for navigating directory structures and archives. It provides a storage cleanup workflow that enables the deletion of selected items directly from the analysis view, utilizing parallel execution to reduce I/O wait times. The application supports recursive directory

Dust is a command line disk usage analyzer written in Rust. It functions as a disk space visualization tool and recursive directory size scanner used to identify large files and directories through a formatted list of disk consumption across a filesystem. The tool differentiates itself by providing a recursive tree view to visualize space distribution and the ability to output directory and file size data in machine-readable formats for external processing and analysis. Its broader capabilities include filesystem auditing and storage capacity management. This is achieved through file and dir

Flake8 is a Python style checker and static analysis tool that identifies programmatic errors and violations of coding standards in source files. It serves as a linting wrapper that aggregates multiple checkers into a single interface, functioning as a pluggable framework for Python code analysis. The tool incorporates a cyclomatic complexity analyzer to measure the logical complexity of functions and identify code that requires refactoring. It is designed for extensibility, allowing the integration of custom plugins and rules through defined entry points. The system provides capabilities fo

CSS coding style formatter

Inspects Python source files and provides information about type and location of classes, methods etc

check code for common misspellings

Format markdown code blocks using your favorite tools

Generate interactive Specificity Graphs for your CSS

Linter/analyzer for Makefiles

A Golang tool that does static analysis, unit testing, code review and generate code quality report.

Markdown lint tool