Free Online Tools That Run in Your Browser
LIVETOOLSLAB is a collection of free, browser-based tools for working with images and PDFs, checking on-page SEO, calculating marketing metrics and handling everyday maths. Pick a tool, use it right on the page, and get a result you can download or copy, without creating an account.
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Popular tools
How LIVETOOLSLAB tools work
Every tool runs in your web browser using JavaScript. When you open an image or PDF, your browser reads the file from your device and processes it there; the tools don’t upload it to a LIVETOOLSLAB server. Calculators and generators work the same way: the numbers and text you type stay on the page.
That has practical benefits: results appear quickly, there’s no queue, and tools keep working on slow connections once the page has loaded. The trade-off is that very large files depend on your device’s memory, so a computer handles a 40 MB PDF more comfortably than an older phone.
Common jobs, and the tool for each
| You need to… | Use |
|---|---|
| Get a photo under an upload size limit | Image Compressor |
| Email a large scanned PDF | PDF Compressor |
| Combine phone photos into one PDF | Image to PDF Converter |
| Write a title and description for a new page | Meta Tag Generator |
| Know the minimum ROAS your ads need | Break-Even ROAS Calculator |
| Stay within an essay word limit | Word Counter |
| Make an AI-assisted draft sound less robotic | AI Text Humanizer |
| Work out a discount or percentage change | Percentage Calculator |
Why we explain the maths
Each calculator page shows the formula and a worked example next to the tool. You can check a result by hand, reuse the formula in a spreadsheet, and understand what the number means before acting on it.
Frequently asked questions
Yes. The tools are free to use and don’t require an account.
No. Image and PDF tools process files in your browser; they are not uploaded to a LIVETOOLSLAB server. If the site shows advertising, ad providers may use cookies as described in our Privacy Policy.
Yes. They’re built for modern mobile and desktop browsers.
Yes. Use the Contact page to tell us what you’d find useful.