Discover our latest additions. Fresh tools added regularly to help you work smarter.
Generate personalised B2B cold emails in seconds. Enter the recipient details and your product or service, choose a tone, and the AI writes a concise, reply-worthy email complete with subject line, opening hook, value pitch, and call to action.
Change the page size of any PDF to A4, Letter, Legal, A3, A5, Tabloid, or Executive. Choose how content is fitted — scale to fit, scale to fill, stretch, or centre. All processing runs in your browser. Nothing is uploaded.
Validate CSS syntax instantly in your browser. Get real-time feedback on errors and warnings with exact line and column numbers. Shows rule count, declarations, selectors, at-rules, and comment statistics.
Test HTTP API endpoints directly in your browser. Make GET, POST, PUT, PATCH, and DELETE requests with custom headers and request bodies. View status codes, response headers, and pretty-printed JSON responses — all client-side, no server proxy.
Convert a colour PDF to grayscale instantly in your browser. All pages are processed locally — nothing is uploaded to any server. Works with scanned documents, presentations, and any PDF file.
Validate YAML syntax instantly in your browser. Get real-time feedback on errors with exact line and column numbers. Supports multi-document YAML and shows document statistics including nesting depth and key counts.
Calculate your total net worth by entering assets and liabilities by category. See asset allocation, liability breakdown, debt-to-asset ratio, and your financial health snapshot.
Calculate simple interest using the I = P × r × t formula. Enter principal, annual rate, and time period to see interest earned, total amount, daily/monthly/yearly accrual, and a comparison with compound interest.
Calculate monthly car lease payments from MSRP, negotiated price, residual value, and money factor. See depreciation fee, finance fee, effective APR, and total lease cost.
Generate bcrypt hashes from passwords and verify passwords against existing bcrypt hashes. Configurable cost factor. Runs entirely in your browser — nothing is uploaded.
Calculate your test score percentage and letter grade from points earned. Instantly see your grade, points missed, and how many more points you needed for the next grade up.
Calculate any side of a right triangle using the Pythagorean theorem (a² + b² = c²). Find the hypotenuse or either leg instantly with formula visualization and triangle diagram.