Kit — the small-tools drawer

Everyday tools that
never leave your browser

A QR code, a resized image, two PDFs joined, a checksum. Small jobs — and almost every site that does them starts by asking you to upload the file. Everything on this shelf runs on your own machine instead.

Text & data

Word & character count

Characters, words, lines and reading time, counted as you type.

JSON formatter & validator

Pretty-print, minify, sort keys — and point at the exact line that broke.

Base64 encode & decode

Text and files to Base64 and back, data URLs included.

Text diff

Compare two texts and see which lines changed — and what changed inside them.

Images

Image resize

Resize images to an exact dimension, aspect ratio kept, in your browser.

QR code generator

Build QR codes for links, Wi-Fi and contacts, then save PNG or SVG.

Image metadata remover

See the capture date, camera and GPS buried in a photo — then strip them.

Documents

Merge PDFs

Combine PDFs into one, with reordering and per-file page ranges.

Security

Password generator

Strong passwords and passphrases, made entirely in your browser.

Hash & checksum

Compute SHA-256, MD5 and more for text or files, and compare against a published value.

10 tools so far — anything that can be done without a server is fair game.

Why do the work on your device at all

Nothing uploaded is nothing leaked

"Your files are deleted after 24 hours" also means they are held for 24 hours. Here the upload never happens, so a work document and a photo of your ID can be treated the same way.

No round trip, no wait

There is no server to send to and wait for, so results appear as you type. The gap is widest on a poor connection — and these keep working with the network off, once the page has loaded.

No account, no daily limit

Your device does the work, so it costs us nothing per file. That removes the usual reason for a "3 files a day" cap, and there isn't one.

Questions

Is the file really not uploaded?

It is not. Open your browser's network tab and use any tool: nothing goes out apart from the page itself and its ads. Turning the network off after the page loads is the other way to check — the tools keep working.

What does it cost?

Nothing. Ads cover the running costs. Because the heavy lifting happens on your device rather than on our servers, there is very little to cover.

How large a file can I use?

That depends on your device's memory rather than on us. Very large media can fail on a phone; when a limit is hit the tool says so, and the same file usually goes through on a desktop.

Do these work on a phone?

Yes — every tool is laid out for a narrow screen. Image and document tools depend on the device's memory, so a big file is more comfortable on a computer.

Can I ask for a tool to be added?

Please do, via the contact link in the footer. The one requirement is that it can be done entirely in the browser; anything that needs a server (a URL shortener, say) cannot live here.