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Displays your public IP with geolocation, ISP and proxy details.

Shows navigator, screen, time zone and other properties scripts can read.

Shows the TLS handshake details and fingerprint your browser presents to servers.

Detects whether WebRTC exposes your local or public IP addresses even behind a VPN.

Runs fingerprint, IP, DNS leak and WebRTC checks in one page.

Shows which browsers and versions a Browserslist query string would target.

A toolbox of 152 free browser-based tools, available in 17 languages with no signup.

Online converter that turns MySQL dump SQL into SQLite-compatible SQL.

German-language calculator for net income from gross salary in 2026.

Play a 3D Rubik's Cube in the browser with drag controls and a built-in timer.

Official calculators for unemployment benefit rights.

Official calculators for National Insurance contribution amounts.

Official calculators for maternity leave pay and birth grants.

Official calculators for general disability benefits.

Official calculator for burial costs and grants.

Official calculator for alimony payment amounts handled by the Institute.

Official calculators for old-age pension rights and benefit amounts.

Works out how much PTO employees earn per hour worked or per pay period.

Generates hashtags for any social network from a post description.

Turns a blog post into draft social media posts.

Writes attention-grabbing opening lines for social posts.

Resizes images to the dimensions each social network expects.

Writes Instagram bio options that fit a brand, capped at five sets a day without an account.

Suggests Instagram hashtags from a post description using an OpenAI model; five results a day without an account.

Suggests Instagram names and handles for a brand or personal account.

Suggests LinkedIn headline ideas from a role and preferences.

Converts a Substack post into social media post drafts.

Suggests TikTok hashtags from a video description with an AI model; daily cap applies without an account.

Suggests TikTok handle ideas for creators and brands.

Suggests username ideas for any social platform from a few details.

Builds campaign URLs with UTM source, medium and campaign parameters.

Suggests YouTube hashtags for a video topic using AI.

Suggests channel name ideas based on brand or niche.

Write Markdown in one pane and see it rendered live, jump around via a heading outline, and open or save .md files.

Paper-style bullet journal with rapid logging, a weekly habit grid and streaks.

Bundles, minifies and compresses npm packages in the browser to show gzip and brotli size.

Reports the install and bundle size cost of an npm package.

Given a flour weight, converts hydration and other baker's percentages into gram amounts, locally in your browser.

Mobile-first return on invested capital calculator for small businesses.

Generates digital business cards with a QR code.

Demo page for a JavaScript barcode writer supporting many barcode types.

Browse a bank of 484 two-word company name ideas; availability and trademark checks are left to you.

Extracts a dominant color palette from a picture with median cut quantisation and shows each color's share.

Side-by-side line comparison of two texts or files, with switches to ignore letter case and spacing.

Collection of calculators for education, professional, scientific and health use.

Word counter in a calculator suite aimed at fast computation.

Estimates basal metabolic rate, the calories the body burns at rest.

Projects the future value of money after a chosen rate of inflation.

Subtracts total liabilities from total assets to show your net worth.

Converts between metres, kilometres, feet and miles with a live result in the browser.