Is my data private and secure?

Absolutely. The vast majority of our tools — including all image and PDF converters — run entirely in your browser. Your files are never uploaded to a server, so your data stays on your device.

Do I need to create an account?

No account required. Just open a tool and start using it. There's nothing to install and nothing to sign up for.

Do the tools work on mobile?

Every tool is mobile-first and fully responsive. Whether you're on a phone, tablet or desktop, the experience is fast and touch-friendly.

Can I suggest or submit a new tool?

We'd love that. Head to the contact page and let us know what you need — we prioritize the tools our community asks for most.

The internet’s toolboxFree · No sign-up · Runs in your browser

Every tool, one address

One place for every digital task.

91 browser-based tools across 10 categories — calculators, converters, PDF & image utilities, developer helpers and a full SEO toolkit. Nothing to install, nothing to upload.

Most reached for

Start with the popular ones.

Browse all tools

Browse the collection

Every category, in one index.

10 categories, all free and browser-based. Pick a shelf and start working.

Explore

Find your next tool.

From the blog

Guides that put the tools to work.

All articles

Why ToolBig

Less searching. More doing.

No installs, no accounts, no uploads for the tools that don’t need them. Just the utility you came for, in the fastest path from question to answer.

Instant, no round-trips
Most tools run the moment you open them — no queues, no processing servers, no waiting on an upload.
Private by design
90 tools — including our PDF and image utilities — process entirely in your browser. Those files never leave your device.
Free, no sign-up
Every tool is free to use. No account, no paywall, no credit card — just open one and go.
One address for everything
91 tools across 10 categories, one consistent interface, and ⌘K search from any page.

07 — Questions

Everything you
might ask.

Can't find your answer? We're a quick message away.

Get in touch

Yes. Every tool on ToolBig is completely free to use with no sign-up, no watermarks and no usage limits. We keep the lights on with unobtrusive ads placed outside of the tools themselves.

One place for every digital task.

Start with the popular ones.

Age Calculator

BMI Calculator

Love Calculator

Death Calculator

Loan Calculator

Percentage Calculator

Every category, in one index.

Calculators

Converters

Image Tools

PDF Tools

Developer Tools

Text Tools

AI Tools

Finance Tools

Utility Tools

SEO Tools

Find your next tool.

Age Calculator

Death Calculator

Love Calculator

BMI Calculator

PDF to JPG

Meta Title Generator

Guides that put the tools to work.

How to Shrink a PDF Enough to Email It — Without Wrecking Quality

JPG, PNG or WebP? How to Pick the Right Image Format

How Loan Interest Actually Works (and How to Check a Lender's Math)

Title Tags and Meta Descriptions: What Actually Moves Clicks

Less searching. More doing.

Instant, no round-trips

Private by design

Free, no sign-up

One address for everything

Everything youmight ask.

Find your next tool.

Age Calculator

Death Calculator

Love Calculator

BMI Calculator

PDF to JPG

Meta Title Generator

Guides that put the tools to work.

How to Shrink a PDF Enough to Email It — Without Wrecking Quality

JPG, PNG or WebP? How to Pick the Right Image Format

How Loan Interest Actually Works (and How to Check a Lender's Math)

Title Tags and Meta Descriptions: What Actually Moves Clicks

Less searching. More doing.

Instant, no round-trips

Private by design

Free, no sign-up

One address for everything

Everything youmight ask.

Everything you
might ask.

Everything you
might ask.