aicoolies logo
kitty logo

kitty

The fast, feature-rich terminal

Share
open-sourceOpen Source
Visit Website →

GPU-accelerated terminal emulator written in C and Python, focused on performance and features. Supports ligatures, true color, graphics protocol for displaying images/plots inline, tabs, splits, and remote control via IPC. Highly configurable via a plain text config file. Cross-platform on macOS and Linux. Features a kitten framework for writing terminal programs in Python. Known for innovation in terminal graphics. 26K+ GitHub stars and a dedicated power-user community.

Kitty is a fast, feature-rich, GPU-based terminal emulator that offers a comprehensive terminal experience without compromising on performance. Created by Kovid Goyal, Kitty uses OpenGL for rendering and offloads graphics processing to the GPU while utilizing SIMD vector CPU instructions, resulting in best-in-class performance with lower system load and smooth scrolling. It solves the problem of having to choose between a feature-rich terminal and a fast one by delivering both.

Kitty supports all modern terminal features including true-color rendering, Unicode, OpenType ligatures, inline image display via its own graphics protocol (widely adopted by other tools), mouse protocol support, focus tracking, and bracketed paste. It provides built-in tiling with multiple terminal windows side by side in different layouts without requiring tmux, uses threaded rendering to minimize input latency, and offers extensive customization through its configuration file. Kitty also includes a powerful extension system called kittens for adding custom functionality.

Kitty is designed for developers and terminal power users on Linux, macOS, and BSD who want a GPU-accelerated terminal with comprehensive built-in features. Its graphics protocol has become a de facto standard adopted by other terminal emulators like Ghostty and WezTerm, as well as terminal applications like Neovim and ranger. Kitty is particularly popular among users who want image rendering, ligature support, and tiling capabilities without relying on additional tools.

Pricing

Free

Platforms

macOS, Linux

Categories

Tags

Use Cases

Alternatives

Related Tools

Ghostty logo

Ghostty

Top Pick

Fast, native terminal emulator

GPU-accelerated terminal emulator written in Zig by Mitchell Hashimoto (HashiCorp co-founder). Native UI rendering on macOS and Linux. Supports ligatures, true color, Kitty graphics protocol, and splits/tabs. Configurable via a simple key-value file with sensible defaults. Open-source with 20K+ GitHub stars and a focus on correctness, speed, and minimal resource usage. Growing as a modern alternative to iTerm2, Alacritty, and WezTerm.

open-sourceOpen Source
Claude Code logo

Claude Code

Top Pick

Anthropic's agentic coding CLI

Anthropic's agentic CLI coding tool that delegates complex tasks to Claude directly from the terminal. Understands entire codebases via automatic context gathering, edits multiple files, runs shell commands, and manages Git workflows autonomously. Supports CLAUDE.md for persistent project instructions, integrates with VS Code and JetBrains, and uses Claude Opus/Sonnet with extended thinking for complex architectural decisions. Built for terminal-first developers.

paidOpen Source
Hermes Agent logo

Hermes Agent

Top Pick

Open-source AI agent framework with persistent memory, reusable skills, tools, and messaging gateways

Hermes Agent is an open-source AI agent framework with persistent memory, reusable skills, 40+ tools, cron jobs, and messaging gateways.

open-sourceOpen Source
pi dev code

Pi

Top Pick

Minimal terminal coding harness

Pi Coding Agent is an MIT-licensed Node.js CLI from earendil-works for building and running coding agents in a local terminal. The current package describes a read/bash/edit/write toolset and session management, while the repo positions Pi as a unified LLM API, agent loop, TUI, and coding-agent CLI. It is best framed as a lean, self-extensible BYO-model toolkit rather than a managed IDE.

open-sourceOpen Source
OpenCode logo

OpenCode

Top Pick

Open-source AI coding agent for the terminal

Open-source terminal-based AI coding agent built in Go by the SST team, with a rich TUI (Bubble Tea) supporting 75+ model providers including OpenAI, Anthropic, Gemini, Bedrock, Groq, and OpenRouter. Features vim-like editing, persistent SQLite sessions, and LSP integration for 40+ languages. Fully free with no vendor lock-in, it has rapidly grown to 95k+ GitHub stars.

open-source
Codex logo

Codex

Top Pick

OpenAI coding agent for app, editor, terminal, and cloud work

Codex is OpenAI's coding agent for software development across the Codex app, editor, terminal, and cloud tasks. It helps write, review, debug, refactor, and automate code, with ChatGPT plan access for managed surfaces and API-key usage for CLI, SDK, and IDE workflows. The open-source CLI and SDK support local repository work, while cloud features add GitHub review, Slack/Linear integrations, worktrees, skills, MCP, and automations.

freemiumOpen Source