Library / All tools
Tools that never see your files.
Redact a screenshot, strip a photo’s location, merge a PDF or check a checksum without handing the file to anyone. Every tool runs inside this browser tab, and the tool pages are not allowed to connect to anything.
Images
4 tools- Redact & BlurBlur, pixelate or black out faces, names and account numbers. The pixels are destroyed, not covered.
- Resize & ConvertResize by percent or to fit a box, convert between PNG, JPEG and WebP, and trade quality against size.
- Metadata ViewerSee the GPS coordinates, serial numbers and names hidden inside a photo, then strip them out.
- Image PaddingAdd transparent padding so a logo is not clipped by a circular crop — with the crop circle drawn over the preview.
Text & data
5 tools- Text ToolkitChange case, sort, deduplicate, trim, wrap, number lines and find-and-replace, with live counts.
- JSON StudioFormat, minify and validate JSON with precise error positions, plus conversion to and from CSV.
- Diff CheckerCompare two blocks of text line by line and see exactly what was added, removed and left alone.
- Regex TesterBuild a regular expression against real sample text, with highlighted matches and capture groups.
- Markdown PreviewWrite Markdown with a live side-by-side preview, then export clean HTML you can paste anywhere.
Security
7 tools- Hash & ChecksumMD5, SHA-1, SHA-256/384/512 and CRC-32 for text or any file, with a verify box for downloads.
- Password & IDsCryptographically random passwords, passphrases and UUIDs, with a strength estimate you can trust.
- PDF UnlockLift the owner password and permission locks off a PDF so it can be printed, copied and edited again.
- Merge PDFsCombine two or more PDFs into a single file, in any order you like. Bookmarks and links come with them.
- Split a PDFCut one PDF into several — every N pages, one per page, or at ranges you pick. All of them come back in a zip.
- Rotate a PDFTurn sideways or upside-down pages the right way up, and save the rotation into the file for good.
- Delete PDF PagesRemove the pages you do not want, or keep only the ones you do and extract them into a new file.
Convert
4 tools- Encode & DecodeBase64, URL, HTML entity and hex conversion both ways, plus a JWT reader that never phones home.
- QR ReaderDrop in a picture of a QR code and see exactly what it says — and whether the link is really the site it looks like.
- QR CodesGenerate a scannable QR code for a link, a Wi-Fi network or a contact card, and export it as SVG.
- Unit ConverterLength, mass, temperature, data and speed conversions with the awkward imperial ones built in.
There is no server to send your work to.
Every tool here is plain JavaScript running inside the page you already loaded. Your file is read by the browser, processed in memory, and written straight back to your downloads folder. Pull the network cable out halfway through and it carries on.
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01Pick a tool
It opens in place, beside the list, with no sign-up and no redirect.
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02Drop in a file, or paste your text
The browser reads it from your disk straight into memory. Nothing is sent anywhere to be processed.
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03Take the result
Download it or copy it. Close the tab and every trace of your work is gone.
Your work is never uploaded, and you can check.
- Nothing arrives anywhere
- There is no database and no log of what you do with a tool, because none of it ever leaves your device. The only thing this site keeps is your list of pinned tools, in this browser.
- Safe for client work
- Contracts, payroll, medical scans, API keys and case files stay on your own device, which keeps your data-processing paperwork short.
- The tools work offline
- Every tool is served from this domain with no CDN and no outside fonts or scripts, and needs no connection once it has loaded. The advert on this page is the single exception: it is Google’s, it sets Google’s cookies, and it is the only thing here that talks to anyone else. It runs on this page only, never inside a tool.
- Verify it yourself
- Open your browser’s network tab and use any tool. It stays empty. Or switch your connection off entirely and carry on working.
What people ask first.
Are the tools really free?
Yes. There is no account, no trial and no limit beyond what your own device can handle. An advert on this home page pays for the hosting; the tools themselves carry none.
Are my files uploaded?
No. Every tool runs in your browser, and the tool pages are served with a security policy that forbids them from connecting to anything, so the browser itself would refuse to send your file. Your browser's network tab will show nothing going out.
Do the tools work offline?
Yes. Once a tool has loaded it keeps working with the network switched off, and after your first visit your browser keeps a copy of the site so it opens offline too.
Is it safe for confidential or client work?
That is what it is built for. Contracts, payroll, medical scans, API keys and case files never leave your device, which keeps your data-processing paperwork short.
Do you keep a record of what I do?
No. There is no database and no analytics. Your pinned and recent tools are stored in this browser only. Like any website, the host sees requests for pages, but never what you do with a tool.
Why does the home page have an advert?
It pays for the hosting. It is Google's, it sets Google's cookies, and it appears on this page only. A tool page is not allowed to load it, or anything else.
Do I need to install anything?
No. It is a website. You can add it to your home screen or desktop as an app if you like, and it still runs entirely on your device.