Why Choose ToolHero
Intelligent toolkit designed for modern developers and creators
Fast & Minimal
Lightweight tools, instant results, zero fluff.
Privacy-first
No tracking. Local-first when possible.
AI-powered
LLM utilities and knowledge to accelerate work.
Multilingual
English and Chinese content available.
Many Utilities
Images, code, math, PDF, markdown, and more.
Playful
Mini-games and interactive demos to learn by doing.
Featured Tools
Powerful online tools, click to use, boost your productivity
Image Converter
Convert, resize, compress images.
Remove Image BG
Remove background with AI.
Code to Image
Pretty code snapshots.
Image Generator
Generate images from prompts.
Photo Gallery
Masonry gallery & viewer.
Markdown to PDF
Export MD to styled PDF.
Link Preview
Generate social link cards.
IP Geolocation
Find IP location info.
Translator
Translate between languages.
Web Sketch
Draw and annotate online.
Snake
Classic snake game.
Gobang
Five in a row.
Knowledge Base
In-depth technical articles, development guides, and practical insights to boost your skills and career
Golden Rules for Modern Microservice Development
Complete guide to modern microservice development, from 12-Factor to cloud-native.
3D Matrix Transformations
Complete guide to 3D graphics matrix transformations, covering translation, rotation, scaling, and homogeneous coordinates.
Design Patterns
Essential design patterns every developer should know, with practical examples and implementation tips.
Data Structures Guide
Core data structures with intuitive explanations, use cases, and performance characteristics.
LeetCode Patterns
Master algorithmic problem-solving with proven patterns and techniques for coding interviews.
Backend Developer Roadmap
Complete roadmap from fundamentals to production-ready backend development skills.
Build RPC Server in Go
Build a production-ready RPC server from scratch using Go, covering protocols and best practices.
Golang HTTP Essentials
Master HTTP client and server development in Go with practical examples and performance tips.
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Join thousands of developers using ToolHero to boost productivity