Development preview: This platform is under active development and is available only for testing and demonstration. Commercial use is not permitted.Privacy Terms

Best FreeOnline Tools

AI and finance tools

Best Free Online Tools

Build business finance prompts, create invoices, calculate loans and investments, and keep practical browser utilities close by.

Open Prompt Library Browse AI and finance tools

15 tools available

Choose a tool

AI
Business Finance Prompt Builder
Search, build, copy, and save finance prompts locally.
Finance
Invoice Generator
Create branded invoices, save drafts, and download PDFs.
Finance
Loan EMI Calculator
Estimate payments and review loan cost at a glance.
Finance
Credit Card Calculators
Plan payoff, compare rewards, check fees, and score card fit.
Finance
SIP Calculator
Project monthly investments and long-term growth.
Finance
Stock CAGR Calculator
Calculate annualized returns, including dividends.
Writing
Text Cleaner
Fix spacing, line breaks, casing, and messy pasted text.
Productivity
Browser Notepad
Create, edit, search, and delete notes saved locally.
Productivity
Browser Whiteboard
Draw, use shapes, save boards, and export images locally.
Data
JSON Viewer
Format, search, collapse, and inspect JSON safely.
Compare
Text Difference Checker
Compare two text blocks and spot changes quickly.
AI
Grammar + Tone Fixer
Clean up grammar and rewrite tone with Chrome AI.
Dev
Docker Cheat Sheet
Find container, image, volume, and Compose commands.
Dev
Git Cheat Sheet
Look up branch, commit, merge, and remote commands.
Learning
Elixir + Phoenix Roadmap
Track a practical path through Elixir, Phoenix, and LiveView.

Private by default

Tools run in the browser whenever possible.

No account needed

Open a tool and get straight to the task.

Built for speed

Small pages, clear controls, useful defaults.