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504 Free Online Tools, Calculators, Converters & Generators

504 free tools in one place. Unit converters, forex and crypto calculators, PDF tools, and QR code, barcode and password generators. No sign up, no limits, and nothing uploaded from your device.

Developer (89) Video (77) PDF (47) Image (41) Math (36) Audio (33) Text (25) Forex (22) Units (20) Date & Time (19) CSV (17) QR Code (16) Crypto (12) Security (11) JSON (11) Finance (10) Health (8) Utility (5) Barcode (2) Data & Creative (2) Typing (1)
Browse All 504 Tools

What This Site Is

Free Online Tools For Everyday Jobs

You need one quick answer. How many grams are in four ounces. What 15% of 2,400 comes to. What one pip is worth on a half lot. Most sites want your email first, or make you sit through three ads before the number shows up. This one does not. Pick a tool, type your numbers, read the answer, close the tab.

There are 504 free online tools here, sorted into 21 groups. 20 unit converters for weight, length, temperature, volume, area, speed, data storage and cooking measures. 34 forex and crypto calculators for pip value, lot size, position size, margin, leverage, profit and compounding. 47 PDF tools to merge, compress, lock and convert. Plus a QR code generator, a barcode generator, a password generator, a percentage calculator, an age calculator and a typing test.

People ask us the same thing every week: are online converters actually safe? Here the answer is yes, and there is a reason for it. Nearly every tool runs inside your own browser. What you type stays on your device and never reaches us, so there is no copy sitting on a server somewhere. It is also why a tool keeps working when your internet drops halfway through.

Everything is free. Not free for three tries, and not free until you hit a limit. There is no sign up, no email, no account and no card. Your QR codes never expire, nothing carries a watermark, and no result is held back until you pay.

New tools go up often, and this page counts them on its own. So the numbers you just read are today’s, not from the day someone last remembered to update the homepage.

See every tool Why we made this

Nothing leaves your device

The calculators and converters are plain JavaScript running on your machine. No upload, no queue, no copy of your data on our side.

You can check the answer

Every calculator prints the formula it used and the numbers it put in, so you never have to take a result on trust.

Exact numbers, not rounded

An inch is exactly 25.4 mm here and a pound is exactly 0.45359237 kg. Those official values run through the whole sum.

Browse By Category

All 504 Tools, Grouped By Category

The full list. Every tool on the site is linked below, and none of them ask you to sign up.

89 Tools

Developer Tools

Format JSON, hash text, encode Base64, decode JWT, test regex, convert colours and more. Free developer tools, nothing uploaded.

77 Tools

Video Tools

Seventy seven free video tools that run in your browser. Trim, convert, compress, caption, watermark, analyse and edit GIFs. No upload, no watermark.

25 Tools

Text Tools

Count words, change case, compare two texts, sort or dedupe lines, find and replace, and make slugs. Free text tools, nothing uploaded.

11 Tools

Security Tools

Hash and compare text or files, HMAC, password hashes, AES, RSA keys, certificate and JWT tools. Free, nothing uploaded, no keys stored.

8 Tools

Health & Fitness Tools

BMI, BMR and TDEE, body fat, macros, ideal weight, calorie, water and heart rate calculators. Metric or imperial, nothing uploaded.

5 Tools

Utility Tools

Generate strong passwords, spin a random picker wheel, roll dice, flip a coin or time laps with a stopwatch. Free everyday online tools.

2 Tools

Barcode Tools

Generate Code 128, EAN-13 and UPC-A barcodes for labels, or scan one back from a photo. Free online barcode generator and reader.

2 Tools

Data & Creative Tools

Turn data into something worth watching. Chart animation videos today, more creative tools to come. All in your browser, no upload, no watermark.

1 Tool

Typing Tools

Test your typing speed and accuracy online. Timed WPM tests with live results and practice passages, free and without an account.

Fresh Updates

Recently Added Tools

The newest tools on the site. This list updates itself the moment one goes live.

New

Bulk PDF Merger & Combiner

Select multiple PDFs at once and combine them into one file. Drag them into order, check page counts and download. Free, nothing uploaded.

PDF Tools
New

Split PDF & Extract Pages

Split a PDF into separate files or extract only the pages you need. Choose ranges, preview pages and download free without uploading.

PDF Tools
New

Delete Pages from PDF

Remove pages from a PDF for free. Pick the pages from thumbnails and download a file where they are truly deleted, not just hidden.

PDF Tools
New

Rotate PDF

Rotate PDF pages and save the turn into the file. Fix sideways scans one page or all at once, free and without uploading anything.

PDF Tools
New

Reorder PDF Pages

Drag PDF pages into a new order and download the result. Reverse a whole document or move one page, free and without uploading.

PDF Tools
New

Add Page Numbers to PDF

Add page numbers to a PDF in any of nine positions. Set the start number, skip the cover and preview before downloading. Free tool.

PDF Tools

Built Different

Why Choose WizTools?

Six choices behind every tool here. Most free-tool sites make them the other way round.

Your Data Stays Yours

Browser-based tools never send your input anywhere. Nothing is logged and nothing is profiled. There is no database with your name in it, because there is no account to put a name on.

No Waiting Around

No upload bar, no queue, no fake “preparing your file” delay. The answer appears as you type, because the work is happening on your own machine.

The Maths Is Shown

Each calculator shows the formula and the values it used. If a number looks wrong you can see exactly where it came from, and tell us. That is how several bugs got found.

Made For Phones Too

Big tap targets, layouts that stack instead of scrolling sideways, and a number pad on number fields. Same tool, same features, whichever screen you are on.

No Tricks

No forced sign up, no watermark you pay to remove, no free tier that stops on page three of your PDF. If a tool is listed, the whole tool works.

It Keeps Growing

504 tools across 21 groups today, and every request from the contact page goes into the build queue. New tools show up on this page on their own.

Good To Know

Frequently Asked Questions

The questions people really ask us, answered in plain words.

Yes, and the reason is simple. Almost every tool here runs inside your own browser. What you type stays on your device and never reaches us, so there is no server copy to leak, lose or sell. That is also why a tool keeps working if your internet drops in the middle of a job.

For the calculators, converters and generators, no. Nothing is uploaded at all. A few tools, mainly the PDF ones, do need a server to finish the job. Those files are used for that one job and deleted straight after. We keep no backup and no copy for any other use.

All 504 tools are free, and there is no sign up. No email, no account, no card, no free trial that runs out. Open a tool and use it. The site is paid for by a few small ads and the odd coffee from someone it helped.

No. A lot of free QR sites hand you a short link that points at their server, and one day that link stops working. Ours does not do that. Your QR code holds your own data, it is made in your browser, and it will still scan in ten years because nothing of ours sits in the middle.

They use the exact official numbers, not rounded ones. An inch is exactly 25.4 mm and a pound is exactly 0.45359237 kg, and that precision is carried through the whole sum. Each tool also shows the formula it used, so you can check the answer instead of trusting it.

No, and that is on purpose. Every price, rate and spread is a number you type in. A live feed would quietly change your answer between one look and the next, and it would hide the fact that your broker’s numbers are not the same as anyone else’s. You stay in charge of the inputs.

No. The 34 forex and crypto tools are maths, nothing more. They work out what your own numbers mean: lot size, pip value, margin, fees, break-even, drawdown. They never tell you what to trade or when. Check every figure with your broker before you act on it.

Yes. Every tool is built for small screens first, with big tap targets and layouts that stack instead of scrolling sideways. There is no app to install and no cut-down mobile version. You get the same tool either way.

Yes. Anything you make here is yours, at home or at work. That covers QR codes, barcodes, passwords, converted figures and PDFs. We add no watermark, claim no ownership and ask for no credit.

Into your own browser storage. Your saved setups, your history and your light or dark choice all stay on that device. They are never sent to us, and clearing your browser data wipes them completely.

Send it through the contact page and say roughly how you would use it. Ideas that come up more than once move to the front of the queue, and a good few of the 504 tools here started exactly that way.

Still stuck? Ask us directly. A real person reads it.

Hear About New Tools First

One short email when a new tool goes live. Nothing else, and one click to stop.