Free Online Tools
Simple, fast, and free tools for everyday tasks. No signup required.
JSON Formatter
Format, validate, and minify JSON data with syntax highlighting
JSON / YAML / TOML Converter
Convert between JSON, YAML, and TOML — validate, format, minify, and download in your browser
Color Scheme Generator
Generate harmonious color palettes — complementary, triadic, analogous, and more
Linux Commands Cheat Sheet
Quick reference for essential Linux commands — files, permissions, networking, and more
Git Cheat Sheet
Quick reference for Git commands — branching, merging, rebasing, and workflows
Docker Cheat Sheet
Quick reference for Docker commands — containers, images, volumes, and compose
Tmux Cheat Sheet
Quick reference for Tmux — sessions, windows, panes, and key bindings
Claude Code Cheat Sheet
Quick reference for Claude Code CLI — slash commands, skills, MCP, and session management
Codex CLI Cheat Sheet
Quick reference for OpenAI Codex CLI — sandbox modes, approvals, exec, and git workflows
Gemini CLI Cheat Sheet
Quick reference for Google Gemini CLI — checkpoints, MCP, custom commands, and extensions