All Tools
A curated collection of lightweight, high-performance tools for modern engineering workflows. Text processing stays local, while site tools fetch public URLs on request. No registration, completely free.
ClipShare - Instant Cross-Device Sharing
Text, images, and small files — no login required.
JSON Formatter
Clean, format, and validate your JSON data instantly.
HTML Formatter
Format, minify, and preview HTML in a sandboxed renderer.
JWT Debugger
Decode, verify, and generate JSON Web Tokens locally.
Epoch Converter
Convert Unix timestamps to readable dates, and dates back to timestamps.
World Cup Fan Type Quiz
Answer 10 questions and discover which of 16 World Cup fan personalities you are.
Base64 Encoder
Encode and decode strings to and from Base64 format.
Regex Builder
Generate and test regular expressions with common templates.
Password Generator
Generate strong, customizable passwords in one click.
Word Counter
Count characters, words, and lines in your text.
Random Fun Fact
Click once to reveal a random interesting fact.
Mystic Mirror
Draw tarot cards for a quick reflective reading.
QR Code Generator
Generate QR codes from any URL or text instantly.
Sitemap URL Extractor
Extract all URLs from sitemap.xml files.
Robots.txt Checker
Score crawler rules and sitemap declarations.
Sitemap Checker
Score sitemap availability, structure, and declarations.
LLMs.txt Checker
Score AI-facing site guidance and resource links.
IndexNow Auto Submitter
Bulk submit new, updated, or deleted URLs to IndexNow and Bing.
URL Parser
Parse and edit URL parameters easily.
Cron Expression Generator
Visually create cron schedules.
UUID / ULID Generator
Generate unique identifiers in bulk.
Color Toolbox
Convert colors and check contrast.
Text Diff Checker
Compare two texts and highlight differences.
Web Development Workflow
Choose tools by real development flow
Debug data, prepare assets, validate launch files, and submit updates from one practical path.
World Cup Fan Type
What kind of World Cup fan are you?
Answer 10 questions and find your match among 16 fan personalities.
Webmaster Guide
Check Robots.txt, Sitemap, and LLMs.txt Health
Review scoring rules and launch best practices across crawl control, search discovery, and AI discoverability.
Tool Categories Overview
Developer Tools
Professional tools for developers, covering JSON processing, HTML formatting, JWT debugging, Base64 encoding, regex testing, cron expression generation, and other common needs. Text processing runs locally; site checks fetch only the public URLs you request.
Includes: JSON Formatter, HTML Formatter, JWT Debugger & Generator, Base64 Encoder/Decoder, Regex Tester, Cron Expression Generator, URL Parser, Color Converter, Text Diff Checker, UUID Generator, and more
Utility Tools
A collection of handy utilities for both work and daily life. From password generation to QR code creation, from word counting to timestamp conversion — lightweight tools to help you get small tasks done quickly.
Includes: Timestamp Converter, Password Generator, QR Code Generator, Word Counter, Online Clipboard
Fun
Need a quick break from work? Try light, memorable tools like random interesting facts, the World Cup fan personality quiz, and Mystic Mirror.
Includes: Random Fun Fact, World Cup Fan Type Quiz, Mystic Mirror
How to Choose the Right Tool
I need to process JSON data from an API response. Which tool should I use?
Use the JSON Formatter. It converts minified JSON into properly indented, readable format with one click, plus syntax validation and tree view for deep nested structures.
How do I inspect the contents of a JWT token?
Use the JWT Debugger & Generator. Paste your JWT token and the tool automatically decodes the Header and Payload sections, showing you all the information contained in the token.
How can I generate a secure random password?
Use the Strong Password Generator. Customize password length and character sets (uppercase, lowercase, numbers, symbols) — the tool uses cryptographically secure random generation.
I need to encode text to Base64. How do I do that?
Use the Base64 Encoder/Decoder. Paste your text to encode it as Base64, or decode a Base64 string back to plain text. You can also upload images to generate Base64 Data URLs.
How do I convert a Unix timestamp from logs into a readable date?
Use the Timestamp Converter. It auto-detects second, millisecond, microsecond, and nanosecond timestamps, converting them to both local and UTC human-readable formats.
Frequently Asked Questions
Sensitive text processing runs in your browser; site checks and submissions handle public URLs only when requested. No registration, completely free.