Open Source CLI Tools
Discover 285 open source CLI repositories from GitHub, each with an analysis of what it does, key features, use cases and alternatives. CLI projects here are most often combined with Developer Tools, AI Agents and Python. Last updated October 4, 2026.
285 repositories · updated October 4, 2026
podcastfy: Turn Multimodal Sources Into AI Podcasts
Podcastfy is a Python package and CLI for turning websites, PDFs, images, YouTube videos, and topics into multilingual conversational audio. It suits developers and creators who want to customize or automate podcast generation with hosted or local language models.
marker: Convert Documents into Structured Text
Marker converts PDFs and other documents into Markdown, JSON, HTML, or chunks, preserving structure such as tables, equations, and images. It suits developers building document-processing workflows who can run its local models and inference backend.
handit.ai: Monitor and Automatically Fix AI Applications
Handit.ai monitors AI applications for quality and reliability issues, evaluates interactions, and can generate tested fixes as GitHub pull requests. It is aimed at teams operating production AI agents that want ongoing monitoring and a reviewable path from detection to code changes.
Argus: Gather Information for Security Reconnaissance
Argus is a Python toolkit that combines network, web application, and threat-intelligence reconnaissance modules in an interactive CLI. It suits analysts who want to run and manage varied checks from one tool, with explicit authorization for every target.
opengrep: Find Security Issues with Static Code Analysis
Opengrep is an OCaml static analysis engine that searches code for patterns and security issues using customizable rules. It suits developers and security teams who want Semgrep-compatible scanning, taint analysis, and JSON or SARIF output under an LGPL-2.1 license.
vulnapi: Scan APIs for Security Vulnerabilities
VulnAPI is a Go-based dynamic security scanner for APIs. It can discover exposed API-related resources and scan targets using curl-like requests or OpenAPI contracts, helping developers and security teams identify common weaknesses.
jellyfin-ffmpeg: Process Media for Jellyfin
Jellyfin-ffmpeg is a Jellyfin-focused FFmpeg build with custom extensions and enhancements. It provides media-processing libraries and command-line tools for applications that need to convert, inspect, filter, or stream audio and video.
tigerbeetle: Store Financial Transactions Safely
TigerBeetle is a database for financial transactions, built around accounts and transfers with a focus on safety and performance. It is intended for systems that need a dedicated ledger-style data store for mission-critical OLTP.
hexora: Scan Python Code for Malicious Patterns
Hexora analyzes Python source for suspicious behavior using static rules and a machine-learned file score. It is intended for security teams and developers reviewing packages, dependencies, and scripts for potential threats.
python-fire: Turn Python Objects into Command-Line Interfaces
Python Fire generates command-line interfaces from Python functions, classes, modules, and other objects. It suits developers who want to expose existing code as a CLI with minimal setup, or explore and debug code from the terminal.
dasel: Query and Transform Structured Data
Dasel is a Go command-line tool and library for querying, editing, and converting structured data across formats such as JSON, YAML, TOML, XML, and CSV. Its shared selector syntax suits shell workflows and Go applications that handle multiple configuration formats.
whisper.cpp: Transcribe Speech with Whisper in C/C++
whisper.cpp runs OpenAI Whisper speech recognition through a lightweight C/C++ implementation. It suits developers building offline transcription into applications across desktop, mobile, browser, and server environments.