100+ Tools Directory / 工具总目录

百分比计算
Percentage Calculator

Calculate percentages, ratios and proportions instantly.

标签提取
Hashtag Extractor

Extract hashtags from social media text instantly.

标题格式转换
Title Case Converter

Convert text to proper title case format instantly.

常量格式转换
Constant Case Converter

Convert text to CONSTANT_CASE uppercase with underscores.

纯本地 PDF 魔法工具箱
PDF Toolkit - Free Online PDF Tools

Merge, split, compress and convert PDFs online for free.

词语去重
Remove Duplicate Words

Remove duplicate words from text while preserving order instantly.

大小写互换
Swap Case Converter

Swap uppercase and lowercase letters in text instantly.

大写转换
Uppercase Converter

Convert text to all uppercase letters instantly.

电子木鱼 (程序员专用)
Online Wooden Fish (电子木鱼) - Stress Relief Tool

电子木鱼在线敲击 - 程序员减压神器。
- 。Free online wooden fish meditation tool with calming sound effects for stress relief and focus.

短横线转换
Kebab Case Converter

Convert text to kebab-case format instantly.

二进制编码
Binary Encode

Convert text to binary code instantly.

二进制解码
Binary Decode

Decode binary text to readable strings instantly.

反转行顺序
Reverse Lines

Reverse the order of lines in any text block instantly.

句子格式转换
Sentence Case Converter

Convert text to proper sentence case format instantly.

空白规范化
Whitespace Normalizer

Normalize extra whitespace and fix spacing in text instantly.

空格转 Tab
Spaces to Tabs

Convert spaces to tabs for consistent code indentation instantly.

密码强度检查
Password Strength Checker

Check password strength and get instant security feedback.

密码生成器
Password Generator - Create Strong Random Passwords Online

Generate strong random passwords locally in your browser.

帕斯卡转换
Pascal Case Converter

Convert text to PascalCase format instantly.

批量加后缀
Add Suffix

Add a suffix to each line of text instantly.

批量加前缀
Add Prefix

Add a prefix to each line of text instantly.

批量加引号
Wrap Quotes

Wrap each line of text with quotation marks instantly.

日期差计算
Date Diff Calculator

Calculate the exact difference between two dates in days, weeks, months and years.

删除空行
Remove Empty Lines

Remove all empty and blank lines from text instantly.

时间戳转换工具
Unix Timestamp Converter - Convert Seconds, Milliseconds and Date Online

Convert Unix timestamps to readable dates and dates to timestamps.

随机 Hex 生成
Random Hex Generator

Generate random hexadecimal strings of any length instantly.

随机抽取
Random Picker

Randomly pick items from a list instantly.

随机打乱行
Shuffle Lines

Randomly shuffle the order of lines in any text block instantly.

随机数生成
Random Number Generator

Generate random numbers with custom ranges and quantities instantly.

驼峰转换
Camel Case Converter

Convert text to camelCase format instantly.

文本反转
Text Reverser

Reverse text, words and characters instantly.

文本统计
Text Word Counter

Count words, characters, sentences and paragraphs in any text.

文本转 ASCII 码
Text to ASCII Codes

Convert text to ASCII code values instantly.

下划线转换
Snake Case Converter

Convert text to snake_case format instantly.

小写转换
Lowercase Converter

Convert text to all lowercase instantly.

行号添加
Line Numberer

Add line numbers to text blocks instantly.

行排序降序
Sort Lines Z-A

Sort lines alphabetically Z to A instantly.

行排序升序
Sort Lines A-Z

Sort lines alphabetically A to Z instantly.

行去重
Dedupe Lines

Remove duplicate lines from text instantly.

行首尾清理
Trim Lines

Trim leading and trailing whitespace from each line instantly.

行文本转 CSV
Lines to CSV

Convert individual lines to CSV format instantly.

行文本转 JSON 数组
Lines to JSON Array

Convert lines of text to a JSON array format instantly.

行长度统计
Line Length Counter

Measure the length of each line in any text block instantly.

颜色选择器
Color Converter - HEX, RGB, HSL and CSS Color Tool

Convert colors between HEX, RGB, HSL and CSS formats with live preview.

邮箱提取
Email Extractor

Extract email addresses from text instantly.

在线 JWT 解码器
JWT Decoder - Decode JSON Web Tokens Online

Decode JWT tokens and inspect header, payload and expiration time locally.

在线 UUID 生成器
UUID Generator - Generate Random UUID v4 Online

Generate random UUID v4 values instantly in your browser.

在线纯本地解压工具
ZIP Extractor - Open and Extract ZIP Files Online

Open, inspect and extract ZIP files directly in your browser.

占位行生成
Lorem Lines Generator

Generate Lorem Ipsum placeholder lines quickly.

长尾关键词组合生成器
Long Tail Keyword Multiplier & Combiner Tool

Generate thousands of long-tail keyword combinations instantly.

正则表达式测试器
Regex Tester - Test Regular Expressions Online

Test regular expressions online with live match highlighting and flags.

正则反转义
Regex Unescape

Unescape regex-escaped strings back to their original form instantly.

正则转义
Regex Escape

Escape special regex characters instantly.

字符频率统计
Character Frequency Counter

Count character frequencies in any text instantly.

字节单位转换
Bytes Converter

Convert between bytes, KB, MB, GB, TiB and more.

字数 & 字符统计工具
Word Counter - Count Words, Characters and Sentences Online

Count words, characters, sentences and paragraphs online.

AI API Cost Calculator — Compare OpenAI, Claude, Gemini Pricing

Free AI API cost calculator.

AI Bot Access Auditor
AI Bot Access Auditor

Audit robots.txt or Cloudflare rules for AI crawler access mistakes.

AI Crawler Robots
AI Crawler Robots Generator

Generate robots.txt rules for AI search and training crawlers.

AI Prompt Helper - Optimize ChatGPT & Claude Prompts

Optimize ChatGPT and Claude prompts for better AI responses.

AI Video Prompt Repair
AI Video Prompt Repair

Rewrite AI video prompts to reduce safety rejection, distortion, and inconsistency.

AI vs Human Code Challenge — Can You Tell the Difference?

Can you tell if code was written by AI or a human?

AI-Generated App Production Checklist
AI-Generated App Production Checklist

Generate a compact release checklist for vibe-coded apps.

Anti-Scan QR Code Generator - Evade OCR Detection

Generate anti-scan QR codes designed to evade OCR and auto-scan detection.

ASCII 码转文本
ASCII Codes to Text

Convert ASCII codes back to readable text instantly.

Base64 编码 / 解码工具
Base64 Encoder & Decoder - Encode and Decode Text Online

Encode text to Base64 or decode Base64 back to plain text instantly.

Base64URL 编码
Base64URL Encode

Encode text to URL-safe Base64URL format instantly.

Base64URL 解码
Base64URL Decode

Decode Base64URL encoded strings back to plain text.

Basic Auth 头生成
Basic Auth Header

Generate HTTP Basic authentication header values instantly.

ChatGPT Apps manifest checker
Apps SDK Manifest Validator

Validate ChatGPT Apps and MCP app metadata for OAuth, widget, CSP, and tool result mistakes.

Code Mode fit assessment
MCP Code Mode Readiness Checker

Check whether an MCP server is a good fit for Code Mode, tool routing, or normal tool calling.

Code Value Estimator — How Much Is Your Code Worth?

Paste your code and find out its estimated market value.

ComfyUI Error
ComfyUI Error Decoder

Decode ComfyUI, CUDA, Torch, missing node, and Flux failure logs.

Cron 表达式解析器
Cron Expression Parser - Explain and Test Cron Schedules Online

Parse and explain cron expressions with next scheduled run times.

CSS 单位转换器
CSS Unit Converter - px/rem/em/vw/vh

Convert between CSS units - px, rem, em, vw, vh, percentage and more.

CSV 转行文本
CSV to Lines

Split CSV values into individual lines instantly.

Data URL 生成
Data URL Generator

Generate data URLs from text or content instantly.

dependabot.yml 生成器
Dependabot Config Generator

Generate Dependabot config files for GitHub automated dependency updates.

Developer MBTI — What Type of Developer Are You?

Take the Developer MBTI test and discover your developer personality type.

Developer Roast — Get Your Code Roasted by AI

Paste your code and get roasted by AI.

Developer Salary Calculator 2026 — What Should You Be Paid?

Find out your market rate as a software developer.

Docker Compose Online Generator

Generate Docker Compose YAML files online for multi-container applications.

Emoji Search & Copy - Instant Emoji Finder

Search and copy emojis instantly with keyword search.

Estimate MCP schema context cost
MCP Token Budget Analyzer

Estimate MCP tool schema size and identify context bloat before loading many servers into an agent.

Free 3D Printable PCB Solder Paste Stencil from Gerber Files (Stenchill Alternative)
Free 3D Printable PCB Solder Paste Stencil Generator

Convert Gerber ZIP files to 3D printable PCB solder paste stencils.

GitHub Wrapped — Your Developer Stats Report 2026

Enter your GitHub username and get a beautiful developer stats report.

Gitignore 生成
Gitignore Generator

Generate .gitignore files for any tech stack instantly.

Hash Generator - MD5, SHA-1, SHA-256 and SHA-512 Online

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes locally in your browser.

Hex 编码
Hex Encode

Convert text to hexadecimal encoding instantly.

Hex 解码
Hex Decode

Decode hex-encoded strings back to plain text instantly.

How Long Will Your Tech Stack Survive?

Select your tech stack and see how long each technology will survive.

HTML 标签移除
HTML Stripper

Strip HTML tags from text instantly while preserving content.

HTML 转义与反转义工具
HTML Entity Encoder & Decoder Online

Encode and decode HTML entities instantly.

IPv4 提取
IPv4 Extractor

Extract all IPv4 addresses from text instantly.

JSON 反转义
JSON Unescape

Unescape JSON-encoded strings back to readable text instantly.

JSON 格式化 & 校验工具
JSON Formatter & Validator - Format, Validate and Minify JSON Online

Format, validate, beautify and minify JSON online.

JSON 数组转行文本
JSON Array to Lines

Convert JSON arrays to individual lines of text instantly.

JSON 转义
JSON Escape

Escape special characters for JSON strings instantly.

JSON Diff Online - Compare JSON Files Side by Side

Compare two JSON objects and highlight differences side by side.

JWT 过期检查
JWT Expiry Checker

Check if a JWT token has expired and decode its timestamp claims instantly.

llms.txt
llms.txt Generator

Create an llms.txt draft for AI search, docs, tools, and canonical pages.

Lorem Ipsum Generator - EN and CN Placeholder Text

Generate Lorem Ipsum and Chinese placeholder text for design mockups.

Markdown 表格生成器
Markdown Table Generator - Create and Format Markdown Tables Online

Create, format and convert Markdown tables online.

Markdown 链接提取
Markdown Link Extractor

Extract URLs from Markdown link syntax instantly.

MCP Server Config Generator Online

Generate MCP server configuration files for AI agent tools and Claude Desktop.

MCP Server Directory — 150+ Model Context Protocol Servers

Browse 150+ MCP servers for Claude, Cursor, Windsurf and more.

Meeting Cost Calculator — How Much Does This Meeting Cost?

Calculate the real cost of your meetings.

NanoID 生成
NanoID Generator

Generate NanoID unique identifiers instantly.

Passkey Readiness
Passkey Readiness Checker

Check whether a login page is ready for passkey autofill and conditional UI.

Password Crack Time — How Long to Crack Your Password?

See how long it would take to crack your password.

Playwright MCP and CDP triage
Browser Agent Debug Checklist

Classify browser agent failures involving CDP endpoints, closed browsers, captcha, snapshots, and lost sessions.

QR Code Generator - Create QR Codes Online

Generate QR codes for URLs, text, Wi-Fi networks and contact cards.

Remote MCP OAuth checklist
MCP OAuth Debugger

Inspect MCP OAuth callback URLs, headers, token claims, and session hints without uploading data.

ROT13 编码
ROT13 Encoder

Encode and decode ROT13 cipher text instantly.

SameSite CHIPS Cookie
SameSite CHIPS Cookie Checker

Check Set-Cookie headers for SameSite=None, Secure, and Partitioned mistakes.

SHA1 生成
SHA1 Generator

Generate SHA-1 hash values from text or files instantly.

SHA256 生成
SHA256 Generator

Generate SHA-256 hash values from text or files instantly.

SHA512 生成
SHA512 Generator

Generate SHA-512 hash values from text or files instantly.

Slug 生成
Slug Generator

Generate clean URL-friendly slugs from any text instantly.

SQL IN 构建
SQL IN Clause Builder

Build SQL IN clause values from lines of text instantly.

Stripe Webhook Signature
Stripe Webhook Signature Checker

Check webhook code snippets for missing raw-body and signature verification patterns.

Supabase RLS Checklist
Supabase RLS Checklist

Check Supabase table notes and policies for obvious RLS gaps.

Tab 转空格
Tabs to Spaces

Convert tabs to spaces for consistent code formatting instantly.

Text Diff Checker - Compare Two Texts Online

Compare two text blocks and highlight differences side by side.

Trim verbose tool schemas
MCP Tool Schema Minifier

Remove noisy MCP schema fields, whitespace, and long descriptions for context budget review.

Typing Speed Test — How Fast Can You Type?

Test your typing speed with our free WPM test.

Unicode 反转义
Unicode Unescape

Decode Unicode escape sequences back to readable characters instantly.

Unicode 转义
Unicode Escape

Escape special characters to Unicode escape sequences instantly.

Unix 时间转换
Unix Time Converter

Convert between Unix timestamps and human-readable dates instantly.

URL 编码 / 解码工具
URL Encoder & Decoder - Percent Encode and Decode URLs Online

Encode and decode URLs with percent-encoding for special characters.

URL 参数构建
URL Query Builder

Build URL query strings from key-value pairs instantly.

URL 参数解析
URL Query Parser

Parse URL query strings to readable JSON format instantly.

URL 提取
URL Extractor

Extract all URLs and links from text content instantly.

UUID 批量生成
UUID Batch Generator

Generate multiple UUIDs in batch instantly.

Vibe App Risk
Vibe App Risk Scanner

Scan AI-generated app notes for production launch risks.

VRAM Model Fit
VRAM Model Fit Calculator

Estimate whether local AI image/video generation settings fit your GPU memory.

WebAuthn Error
WebAuthn Error Decoder

Decode passkey and WebAuthn browser errors into likely causes.

What Does AI Know About You? — Search Your Digital Footprint

Curious what AI knows about you?

Will AI Replace Your Job? Risk Calculator 2026

Find out if AI will replace your job.

YouTube 标签生成与格式化工具
YouTube Tags Generator & SEO Optimizer

Generate SEO-optimized YouTube tags from keywords instantly.