Eighty-two tools.One page.Nothing uploaded.
Merge a PDF, resize a photo, work out a loan repayment, format some JSON. Every one of them runs in this page instead of on someone else's server.
- 100% Private
- Runs in your browser
- No sign-up required
Browse by what you need to do
Seven groups covering documents, pictures, money, health, units, text and code.
- PDF Tools15
Merge, split, rotate, encrypt and convert PDF files without uploading them to a server.
- Image Tools11
Resize, crop, compress and convert pictures, read their EXIF data, and generate QR codes and barcodes.
- Calculators24
Loan repayments, investment growth, tax, margins and break-even, with the formula and assumptions shown.
- Health Tools9
BMI, BMR, body fat, macros and hydration estimates, each page naming the method it uses.
- Converters6
Weight, length, temperature, number bases, fractions and colour codes, converted with exact factors.
- Text Tools6
Count words and characters, change case, clean up lists, generate placeholder text and encode URLs.
- Developer Tools11
Format JSON and SQL, diff structures, decode JWTs, hash strings and generate UUIDs, all client-side.
- EverythingExplore all
All 82 tools in one place.
Start here
The tools people open first.
- Merge PDF
Combine several PDFs into one file, with Up, Down and Sort A-Z buttons to set the order before you merge.
- Compress Image
Re-encode a JPEG, PNG or WebP at a chosen quality and see the exact before and after file sizes.
- EMI Calculator
Calculate your Equated Monthly Installment (EMI) for home, car, or personal loans.
- JSON Formatter
Format, minify or validate JSON with a collapsible tree, key sorting, and warnings when parsing quietly loses data.
- Word Counter
Count words, characters, sentences, paragraphs, and read times in real-time.
- Weight Converter
Convert between kilograms, pounds, grams, ounces and stone, with the exact conversion factors shown.
Why the tools work this way
Nothing is uploaded
Your file is read by JavaScript in the page. There's no server behind these tools that could receive it.
Your device does the work
Speed and memory come down to your own machine, not to how busy a server is.
The limits are stated
Browser-only processing can't do OCR, exact Office layout conversion, or AI cut-outs.
Try our EMI Calculator
Your result
Monthly EMI
$8,678
- Total Interest
- $1,082,776
- Total Payment
- $2,082,776
- Principal Amount
- $1,000,000
Reducing-balance interest at a fixed rate, in USD. Excludes fees, insurance and any rate reset.
82+
Tools available
All run in your browser
0
Files uploaded
Your files stay on your device
100%
Private & Secure
No sign-up ever
24/7
Always available
Use anytime, anywhere
Common questions
More in the FAQ, or read how these pages are written and checked.
Do my files get uploaded anywhere?
No. Every tool reads your file in the page and writes the result back out on your device. There's no upload endpoint to send it to. If you want to check, open your browser's network panel while you use one. You'll see the page and its scripts load, and nothing carrying your file leave.
Do I need an account?
There's no account system at all, so there's nothing to sign up for and nothing to log in to.
What can't browser-only tools do?
Anything that needs a rendering engine or a model we can't ship to your device. So there's no OCR for scanned documents, no pixel-perfect Office layout conversion, and no AI subject cut-out. Where a tool has a limit, its page tells you before you use it.
How is this paid for?
Advertising, and only if you accept advertising cookies. There's no paid tier and no data to sell. The tools never reach our servers, so there's nothing on our side to collect.
Something gave me the wrong answer. What now?
Tell us, with the inputs you used. Corrections are the one kind of message that jumps the queue. If a formula really is wrong, we fix the code; we don't quietly adjust the number.