Free Tools. Simple by Design. Private by Default.

Formatters, encoders, hashes and generators for everyday engineering work.

Finance calculators for tax, loans, investments and pricing decisions.

Everyday converters and calculators for students, writers and households.

Build, inspect and document HTTP requests, tokens, webhooks and mock responses.

Format, minify, explain and convert SQL — plus query generators for Postgres and MySQL.

EMIs, SIPs, deposits and returns — work out what a loan costs and what an investment grows to.

Income tax under both regimes, HRA, TDS, advance tax and what actually reaches your bank account.

What you can afford, what the deposit really is, and whether the rent or the appreciation pays.

Loans, mileage, fuel and the running costs people leave out until the bills arrive.

Attendance, CGPA, grades and marks — the arithmetic every term throws at you.

Percentages, ratios, fractions, dates and bills — the small sums that interrupt the day.

Move data between JSON, CSV, Excel, YAML, XML and Markdown — and repair JSON that will not parse.

Compress, resize and convert images entirely inside your browser.

Merge, split and shrink PDF documents locally — no uploads, no watermarks.

Work out what you actually pay: discounts, cashback, tax-inclusive prices, unit costs and budgets.

Format messages, build click-to-chat links and QR codes, and find something to post.

Work out materials, areas and running costs before you order, build or install anything.

Build and check a resume, write a cover letter, and work out what an offer is really worth.