Xiaoshi AI Toolbox
Local & secure · AI-powered · Zero ads · In and out
JSON Formatter
Format / minify / validate / AI fix
JSON ↔ YAML / XML
Two-way format conversion
Image Compressor
Compress to target size / convert formats
Base64 Encoder
Text ↔ Base64
URL Encoder
URL encode / decode
String Escape
JSON string escape / unescape
Timestamp Converter
Unix timestamp ↔ date
Flowchart Editor
Drag-and-drop Mermaid flowcharts with AI
Token Calculator
Token estimation & cost preview
Prompt Optimizer
AI-powered prompt refinement
Claude Code Cheatsheet
Shortcuts / commands / config
Codex CLI Cheatsheet
OpenAI Codex command reference
Message Board
Anonymous feedback & suggestions
Local & Secure
Core tools run 100% locally — data is never uploaded or stored
Your Own Key
Bring your own AI key (BYOK) to connect directly to models — zero middleman
AI-Powered
AI explains and fixes JSON errors, plus token counting and prompt optimization