ToolHub
A collection of free online tools for AI, Developer, SEO, Finance, Image, and PDF. Every tool has its own page and is ready to use instantly.
AI
AI Prompt Generator
Turn a short idea into an effective AI prompt.
AI Prompt Library
A ready-to-use collection of prompts for many needs.
AI Detector
Detect whether a text was likely written by AI.
AI Humanizer
Rewrite AI text so it sounds more natural and human.
AI Image Prompt
Generate a detailed prompt for AI image generators.
AI Email Writer
Write professional emails instantly.
AI Resume Builder
Craft compelling resume summaries and bullet points.
AI Cover Letter
Create a cover letter tailored to the job posting.
AI Blog Generator
Generate a blog article draft from a topic and keywords.
Developer
JSON Formatter
Format and indent JSON neatly.
JSON Validator
Validate JSON structure and show errors.
SQL Formatter
Format SQL queries for readability.
XML Formatter
Reformat XML documents.
YAML Formatter
Validate and format YAML, convert to/from JSON.
JWT Decoder
Decode the header & payload of a JSON Web Token.
JWT Generator
Create a JWT signed with HS256.
Base64 Encode/Decode
Encode and decode Base64 text.
UUID Generator
Generate UUID v4 instantly.
QR Code Generator
Create a QR code from text or URL.
Hash Generator
Compute SHA-1/SHA-256/SHA-512 hashes of text.
Password Generator
Generate a strong random password.
Color Converter
Convert colors between HEX, RGB, and HSL.
Regex Tester
Test a regular expression against sample text.
Curl Generator
Build a cURL command from a request configuration.
API Tester
Send an HTTP request and inspect the response.
SEO
Meta Tag Generator
Generate basic SEO meta tags for a web page.
Robots.txt Generator
Generate a robots.txt file with crawler rules.
Sitemap Generator
Generate a sitemap.xml from a list of URLs.
Open Graph Generator
Generate Open Graph tags for social media previews.
Keyword Density Checker
Analyze keyword density within a text.
Canonical Tag Generator
Generate a canonical tag to prevent duplicate content.