ToolCubbyFree Online Tools
Fast, private, browser-only tools. Everything runs locally on your device — nothing is uploaded, no account is needed. Choose a category below.
- CalculatorsEMI, percentage, age, BMI, discount, salary & more.
- Image ToolsWebP/PNG/JPG/HEIC converters, compressor & resizer.
- Text ToolsDedupe, sort, count, convert & clean text.
- URL ToolsEncoder, slug generator, parser & more.
Popular tools
- EMI CalculatorMonthly loan payment, interest & amortization.
- Percentage CalculatorPercent of a number & percentage change.
- WebP to PNGConvert WebP images to PNG.
- Image CompressorReduce image file size instantly.
- Duplicate Line RemoverRemove duplicate lines, keep order.
- URL Slug GeneratorTurn a title into an SEO-friendly slug.
Why these tools
Every tool on this site is built to run entirely in your browser. That means your data never leaves your device, results appear instantly, and the tool works even offline. No signup, no paywall, no waiting.
Whether you're working out a loan EMI, converting an image, deduplicating a list or generating a clean URL slug, there is a free tool here that does it in seconds.
Free online tools FAQ
Are these tools really free?
Yes — every tool is 100% free with no signup, no limits and no hidden charges.
Is my data uploaded?
No. Everything runs in your browser; your text, images and numbers are never sent to or stored on our servers.
Do they work on any device?
Yes. All tools work in any modern browser on desktop, tablet and mobile.