Free Online Tools for Everyone

Finance

Mortgage, EMI, compound interest, ROI, and tax calculators

30 tools

Business & Startup

SaaS runway, MRR projection, LTV, churn, and pricing tools

30 tools

Text Utilities

Word counter, case converter, JSON formatter, regex tester

29 tools

Unit & Conversion

Length, weight, temperature, currency, and timezone converters

30 tools

Creator & Social

Hashtag generator, UTM builder, QR code, SEO preview tools

26 tools

Image Tools

Compressor, resizer, color picker, format converter, gradient maker

30 tools

Legal & Documents

Invoice generator, NDA template, privacy policy, contracts

30 tools

Productivity

Pomodoro timer, decision matrix, meeting cost, planners

30 tools

Developer

UUID generator, JWT decoder, hash generator, cron builder

30 tools

Misc & Experimental

BMI calculator, AI prompt cost, sleep cycle, carbon footprint

30 tools

YouTube

Thumbnail downloader, tag extractor, earnings estimator, SEO tools

30 tools

SaaS Metrics That Matter: A Founder's Guide

MRR, churn, LTV, CAC — what they mean and why they matter for your startup.

startup analytics

7 min read

JSON & API Tools: The Developer's Browser-Based Toolkit

Format JSON, decode JWTs, generate UUIDs, and test regex — all from your browser with zero setup.

api dev-tools

8 min read

Time Management Systems That Actually Work

Compare proven time management methods like Pomodoro, time blocking, and deep work to find the system that fits your workflow and helps you focus on what matters.

productivity planning

7 min read

Salary Tools

Calculate your real take-home pay with free salary tools: hourly-to-annual converters, overtime calculators, tax estimators, and freelancer rate finders.

6 tools

Text Tools

Transform text with free online tools: Base64 encoding, URL encoding, HTML entities, case conversion, binary conversion, and character counting.

8 tools

Color & Design Tools

Design with confidence using free color tools: palette generators, contrast checkers, hex-to-RGB converters, gradient builders, and color pickers.

7 tools

Loan & Debt Management Tools

Manage loans and debt with free calculators: EMI breakdowns, loan comparisons, credit card payoff planners, debt snowball trackers, and break-even analysis.

6 tools

Social Media Analytics Tools

Analyze your social media performance: engagement rate calculators, hashtag analyzers, YouTube analytics, channel audits, and watch time trackers.

5 tools

Budget & Expense Tracking

Track budgets and split expenses: personal budget trackers, expense splitters, trip cost estimators, meeting cost calculators, and event budget planners.

6 tools