Browse our complete collection of free, client-side developer and security tools.
Validate, prettify, and minify JSON data.
Validate and convert YAML to JSON.
Decode and verify JWT tokens.
Test regular expressions against text.
Generate UUIDs (v4, v7).
Build and explain cron expressions.
Convert JSON/YAML to .env format and vice versa.
Compare two texts or logic snippets.
Validate Kubernetes manifests.
Format and validate Terraform HCL code.
Parse AWS ARNs into components.
Calculate IP ranges from CIDR.
Render Markdown with safe HTML.
Count words, characters, and lines.
Generate placeholder text.
Convert string case.
Generate URL-friendly slugs.
Convert CSV data to JSON array.
Convert JSON array to CSV.
Format text tables.
Convert Epoch to Human time and vice versa.
Convert and pick colors.
Generate harmonies from a base color.
Generate favicons from image.
Generate random port numbers outside of the restricted range.
Normalize email addresses for data cleaning and deduplication.
Convert IPv4 addresses between formats (Int, Hex, Binary).
Expand CIDR notation into a full list of IP addresses.
Lookup manufacturer information for a MAC address.
Generate random MAC addresses.
Generate Unique Local IPv6 Addresses.
Evaluate complex mathematical expressions.
Calculate Estimated Time of Arrival based on distance and speed.
Simple percentage calculations.
Convert between Celsius, Fahrenheit, and Kelvin.
Calculate tips and split the bill among friends.
Lookup MIME types and file extensions.
Search HTTP status codes and meanings.
Find creative domain names by using TLDs as part of the word.
Welcome 👋
Generate strong, secure passwords locally in your browser.
Create memorable and secure passphrases.
Generate 2FA TOTP codes without sending secrets to a server.
Check your password strength against common patterns.
Encrypt and share self-destructing notes securely.
Create javascript bookmarklets easily.
Browse API examples and templates.
Generate WiFi QR codes for easy sharing.
Generate QR codes for text, URLs, and more.
Check your public IP address and location.
Analyze your User Agent string.
Test REST API endpoints directly from your browser.
Expand shortened URLs to see where they lead.
Extract text from images using local OCR.
View EXIF metadata from images.
Get detailed information about your device and browser.
Test your webcam and record video.
Test your microphone and audio input.
Precision online stopwatch and timer.
Benchmark your browser performance.
Find JavaScript keycodes for keyboard events.
Quick reference for developer cheatsheets.
Format and validate Terraform templates.
Parse and inspect AWS ARNs.
Validate Kubernetes manifests and resources.
Parse and explain Cron expressions.
Convert between YAML and JSON formats.
Perform DNS lookups (Dig) from your browser.
Inspect HTTP headers.
Resolve DNS records for any domain.
Check SSL certificate chain and validity.
Calculate CIDR subnets and IP ranges.
Lookup WHOIS domain registration info.
Generate SSH keys and GPG signatures.
Calculate chmod permissions numerically.
Encode and decode Base64 strings.
Generate .gitignore files for your projects.
Calculate SHA-512 hashes.
Visualize AWS IAM policies.
Generate secure Docker configurations.
Generate secure Nginx configurations.
Remove sheet and workbook passwords from Excel files.
Merge multiple PDF files into one document client-side.
Split PDF into individual pages or extract specific pages.
Reduce PDF file size while maintaining quality.
Encrypt your PDF with a password.
Remove passwords and restrictions from PDF files.
Extract text from scanned PDF documents using OCR.