Use free calculators, converters, and generators. All tools process data locally in your browser.
Choose a workflow to find tools for your task.
Pick a goal to filter the tools. All tools stay in your browser.
I need to inspect, fix, or convert data fast
Format, decode, and convert data. JSON, XML, YAML, CSV, encoders, and unit converters.
I need to validate and test before shipping
Check code, APIs, regex, and specs. Find issues before your users do.
I need to design a UI that looks pro
Build palettes, shadows, and gradients. Ship a clean interface.
I need to send money or run a business
Price your work and plan your money. Invoices, pricing, taxes, loans, and unit economics.
Selected. I need to get hired — or hire well
Tune your resume, plan interviews, grade job briefs, and run hiring loops.
I need answers fast
Get quick answers. Split bills, plan sleep, pace learning, and count time and money.
I need to generate content, docs, and boilerplate
Create README files, robots.txt, social images, QR codes, invoices, and styled text.
I need to lead my engineering team
Track delivery, plan architecture, and run healthy team rituals.
Calculate your last working day from notice start, days of leave, and monthly/weekly notices. Includes pro-rated bonus and salary projection.
Compare two job offers side-by-side — base, bonus, equity, benefits, commute, and growth — weighted to your priorities with a verdict.
Generate a tailored negotiation script from your offer details — counter-offer numbers, talking points, and email templates that land.
Turn your raw experience into structured Situation, Task, Action, Result answers for behavioral interviews — with metrics guidance.
Work through a step-by-step system design framework — requirements, capacity estimation, API, data model, and scaling — with expert tips.
Generate a tailored, professional cover letter from your details — role, company, skills, and highlights — with copy-ready output.
Write a professional resignation letter in seconds — notice period, last working day, and tone options — with a copy-ready template.
Calculate your take-home salary from CTC with PF, gratuity, and new vs old tax regime comparison. Built for Indian professionals.
Work out your new salary from a hike percentage — or the hike percentage from old and new salaries — including monthly breakdowns.
Compare cost of living between two cities across rent, groceries, transport, and more — with a salary-adjusted verdict.
Build a winning project proposal — scope, timeline, pricing tiers, and deliverables — from your inputs. Copy-ready for clients.
Score and rewrite resume bullets into high-impact accomplishments using the Google XYZ formula.
Model ISO/NSO stock option payouts across exit valuations, 83(b) tax savings, AMT spread, and dilution.
Draw a random icebreaker for standups, 1:1s, and offsites across four moods, from team warm-ups to deeper talks.