Popular Tools

Visually design load balancer architectures and generate Nginx, HAProxy, and Caddy configuration files.

Validate, format, and minify JSON data instantly.

Compress JSON by removing whitespace and formatting.

Escape and unescape JSON strings for embedding in code.

Create stunning images with text, stickers, and filters. No watermark!

Convert HEX, RGB, HSL and generate palettes.

Create beautiful CSS gradients with live preview.

Check color contrast for WCAG accessibility.

Calculate purchasing power and the real value of money over time using historical CPI data. See how inflation affects your savings.

Calculate monthly loan payments, total interest, and amortization schedules for personal loans, mortgages, and auto loans.

Create professional invoices online for free. Add line items, taxes, and download as PDF. Perfect for freelancers and small businesses.

Calculate VAT and sales tax instantly. Add or remove tax from prices, extract VAT amounts. Works with any tax rate worldwide.

Create strong, secure passwords with customizable rules.

Generate MD5, SHA-1, SHA-256 hashes from text.

Generate secure SHA-256 hashes from text and files.

Analyze password security and get improvement suggestions.

Convert HTML tables to JSON arrays or objects.

Transform JSON arrays into GitHub-flavored Markdown tables.

Convert PDF pages to high-quality images instantly.

Resize images by percentage or exact dimensions.

All-in-one PDF tool: merge, split, rotate, delete, compress, organize.

Combine multiple PDF files into one document securely.

Split PDF files into multiple documents by page selection.

Rotate PDF pages by 90, 180, or 270 degrees.

Generate QR codes for URLs, text, Wi-Fi, and vCards.

Generate unique identifiers (UUID/GUID) instantly.

Generate numbers, pick from lists, create teams.

Create digital signatures and handwritten-style text.

Calculate your grade point average easily.

Calculate percentages, increases, and decreases.

Calculate exact age in years, months, and days.

Calculate weighted grades and target scores.

Switch text case: upper, lower, title, camelCase.

Count words, characters, sentences, and paragraphs.

Generate APA, MLA, Chicago, Harvard citations.

Analyze text tone, sentiment, and emotional impact of your writing.

Extract frames from videos as thumbnail images.

Browse and download royalty-free music for YouTube, podcasts, TikTok, and more. No copyright claims.

Extract duration, resolution, codecs, and metadata from videos.

Extract metadata, duration, and codec info from audio files.

Verify SSL/TLS certificates, check expiration dates, and validate chain trust.

Check HTTP security headers for web applications and get improvement recommendations.

Scan DNS records for security configurations including SPF, DKIM, and DMARC.

Calculate IPv4 subnet details including network address, broadcast, subnet mask, wildcard, and usable host range from CIDR notation.

Generate SEO meta tags, Open Graph, and Twitter Cards for your website.

Generate valid robots.txt files for SEO with crawler rules and sitemap support.

Generate structured data markup for SEO with JSON-LD format.

Create Schema.org structured data for better search visibility.

Create course quizzes with LaTeX formula support. Export as PDF or Word for classroom use.

Create digital flashcards for studying and memorization.

Generate printable math and educational worksheets.

Create classroom or event seating arrangements visually.

Boost productivity with timed work sessions.

Online timer with lap times and precision.

Set countdown timers for events, deadlines, and special occasions.

Convert times between different time zones worldwide.

Create realistic mock Twitter/X posts with likes, retweets, and custom engagement.

Create realistic mock Instagram posts with likes, comments, and custom profiles.

Create realistic mock ChatGPT conversations with custom messages and styling.

Create realistic mock WhatsApp conversations with read receipts and timestamps.