Open Source CLI Tools
Discover 284 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.
284 repositories · updated October 4, 2026
pgcli: Query PostgreSQL from an Interactive Terminal
pgcli is a Python command-line client for PostgreSQL that adds SQL highlighting and context-aware autocomplete to an interactive REPL. It suits developers and database users who want a more guided terminal workflow than a basic SQL prompt.
mini-swe-agent: Automate Software Engineering Tasks with an AI Agent
mini-swe-agent is a compact Python agent that uses a language model and bash to tackle software engineering tasks, including GitHub issues. Its simple control flow suits developers who want a hackable CLI or a baseline for agent research.
DiscordChatExporter: Save Discord Chats to Files
DiscordChatExporter exports message history from Discord direct messages, group chats, and server channels. It suits people who need portable, offline chat archives in formats such as HTML, TXT, CSV, or JSON.
certbot: Obtain and Deploy HTTPS Certificates
Certbot is a command-line client for obtaining certificates from Let's Encrypt and other ACME-compliant certificate authorities. It can also configure supported web servers to use HTTPS and automate certificate management.
svg-term-cli: Share Terminal Sessions as Animated SVG
svg-term-cli converts asciinema terminal recordings into animated SVGs that can be shared without a JavaScript player. It is useful for documentation, project pages, and other places where sharp, portable terminal demos are preferred over GIFs.
malwoverview: Triage Malware and Hunt Threat Intelligence
Malwoverview is a Python first-response tool for investigating malware, indicators of compromise, IPs, domains, and vulnerabilities across threat-intelligence services. Use it to consolidate lookups, local file triage, and YARA scanning in CLI, REPL, or TUI workflows.
fern: Generate API SDKs and Documentation
Fern turns API definitions into SDKs and developer documentation through a command-line workflow. It suits teams that want to publish client libraries and API references from OpenAPI and other supported specifications.
tunn: Manage SSH Tunnels from a YAML Config
tunn launches and monitors SSH port forwards from a single YAML configuration, using your existing OpenSSH setup. It suits developers who need a simple way to run selected tunnels together or manage them in the background.
huh: Build Interactive Forms and Prompts in Go Terminals
huh is a Go library for building interactive terminal forms, from simple prompts to multi-page flows. Use it standalone or embed its form model in a Bubble Tea application, with an accessible mode for screen readers.
inspector: Test and Debug MCP Servers and Apps
MCPJam Inspector helps developers test, inspect, and evaluate MCP servers and apps across clients and models. Use it to debug protocol and OAuth behavior, run repeatable evaluations, and check for regressions in CI.
reactor-ca: Manage and Deploy Homelab TLS Certificates
ReactorCA is a Go command-line tool for managing a private CA and issuing TLS certificates for homelab and small-office services. It encrypts private keys with age and can export certificates and run deployment scripts.
maestro: Fine-Tune Vision-Language Models
Maestro streamlines fine-tuning for multimodal vision-language models with ready-to-use recipes, a CLI, and a Python API. It suits developers adapting supported models to tasks such as JSON extraction and object detection.