Free Online Tools
We built 126 free browser-based tools — calculators for finance, trading, and real estate, utilities for developers and freelancers, tools for e-commerce, health, SEO, and more — and every single one runs client-side in your browser.
No accounts · Tool inputs stay in your browser · Aggregate Google Analytics · No mandatory downloads
Our Most Popular Tools
A short list of the tools people open most — all free, no account required.
Budget Planner
Plan your monthly budget and track expenses.
ADP Paycheck Calculator
Estimate net take-home pay from hourly or salary wages.
Prop Firm Breakeven
Estimate what you need to pass a prop firm evaluation.
Dropshipping Margin
Estimate profit margins including ad spend and fees.
Sponsorship Calc
Calculate fair brand deal rates for YouTube integrations.
UTM Builder
Generate campaign tracking URLs with proper parameters.
Keyword ROI
Estimate the monetary value of a ranking keyword.
Bcrypt Hash Gen
Generate and verify strong bcrypt password hashes in your browser.
JSON Formatter
Validate and beautify JSON payloads.
Markdown to HTML
Convert Markdown to clean HTML with live preview and XSS protection.
SQL Formatter
Format SQL with consistent indentation and uppercase keywords.
PDF Merger
Merge multiple PDFs in your browser.
Freelance Tools
Earn smarterPersonal Finance
Manage your moneyReal Estate
Build your portfolioTrading Tools
Manage your riskE-commerce Tools
Grow your storeSocial Tools
Boost your reachSEO Tools
Rank higherHealth & Fitness
Stay healthyTravel Tools
Plan your tripEveryday Math
Calculate instantlyMath & Education
Solve it fastPrivacy Tools
Stay secureDeveloper Tools
Code fasterMedia Tools
Create & convertBuilt on three principles.
Every tool on this site follows the same rules — no exceptions, no premium tiers, no upgrades.
Tool inputs stay in your browser
Every calculation runs in your browser. Tool inputs are not sent to our servers. The site uses aggregate Google Analytics.
Free to use now
No subscriptions, no paid tiers, no feature paywalls, no usage limits. Ads, when they appear, will sit beside the tools — never inside them.
No accounts needed
No email address, no password, no OAuth, no "just sign up to save your results." Open the page, use the tool, close the tab. That is the full lifecycle — nothing persists unless you explicitly copy or download it yourself.
Frequently Asked Questions
Everything you need to know about the platform and how we manage your data.