Free Tools

Developer tools powered by the edge

A collection of free tools powered by QuantCDN Edge Functions. Use them directly in your browser.

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Developer Tools

Accessibility Audit

Test any webpage for WCAG accessibility issues. Identify barriers that prevent users with disabilities from accessing your content.

Accessibility Standards Explorer

Explore WCAG accessibility rules and guidelines. Understand what each standard covers and find resources to help you comply.

Base64 Encoder & Decoder

Encode text to Base64 or decode Base64 back to text. Supports URL-safe encoding for use in URLs and filenames.

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 cryptographic hashes. Compare hash values for data integrity verification.

HTTP Compression Test

Test if a website supports Brotli or Gzip compression. Check compression ratios and potential bandwidth savings.

HTTP Headers Viewer

View all HTTP headers sent with your request. Debug CORS, caching, authentication, and security headers instantly.

JSON Validator & Formatter

Validate JSON syntax and format it with proper indentation. Catch errors and make JSON readable instantly.

JWT Decoder

Decode and inspect JSON Web Tokens. View the header, payload, and signature. Check expiration and algorithm details.

Lorem Ipsum Generator

Generate placeholder text for designs and layouts. Create paragraphs, sentences, or words of classic Lorem Ipsum text.

SVG Image Placeholder

Generate placeholder images in SVG format for prototypes and development. Specify any dimensions instantly.

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates or dates to timestamps. Supports both seconds and milliseconds formats.

URL Encoder & Decoder

Encode special characters for URLs or decode percent-encoded strings. Essential for working with query parameters and URLs.

User Agent Parser

Parse user agent strings to identify browser, operating system, device type, and rendering engine. Detect bots and crawlers.

UUID Generator

Generate random UUIDs (Universally Unique Identifiers) instantly. Create version 4 UUIDs for databases, APIs, and applications.

Security Tools

Check if IP is a Proxy

Detect if an IP address is a proxy, VPN, or Tor exit node. Identify anonymous and potentially suspicious traffic.

Automatic CSP Generator

Generate Content Security Policy headers for your website. Protect against XSS, clickjacking, and other injection attacks.

Random Password Generator

Generate strong, random passwords instantly. Create secure passwords with custom length and character options.

Utilities

Barcode Generator

Generate barcodes in multiple formats including Code 128, EAN-13, UPC-A, and more. Create scannable codes for products and inventory.

Compound Interest Calculator

Calculate how your investments grow over time with compound interest. See the power of compounding on savings and investments.

IP Address Lookup

Look up geolocation and network information for any IP address. Find the country, city, ISP, and more.

ISBN Validator & Converter

Validate ISBN-10 and ISBN-13 codes and convert between formats. Check if book identifiers are correctly formatted.

Mortgage Interest Calculator

Calculate monthly mortgage payments and total interest costs. Compare loan terms and see amortisation schedules.

QR Code Generator

Generate QR codes instantly for URLs, text, and more. Create scannable codes for marketing, packaging, and digital experiences.

Timezone Converter

Convert times between timezones instantly. Find the right time for meetings across different regions.

What is my IP address?

Find your public IP address instantly. Learn what an IP address is and how it identifies your device on the internet.