imissfiles38 tools
38 tools · processed on this device

File tools that never upload your files.

Merge, split, compress, sign, and convert PDFs in this browser tab. No account, no queue, no server that sees your documents.

Most used

The file never leaves the tab

pdf-lib, PDF.js, and a WebAssembly image decoder run on your device. There is no upload endpoint. Open the network tab and watch nothing happen.

Free because of ads, not data

No accounts, no document API, no analytics on your files. Display ads sit around the workbench and never see what you are working on.

No queue, no limits

Nothing waits in line behind other people's jobs. Speed depends on your device, not on how busy a server is, and there is no daily cap.

All 38 tools

One page per job. Same engine, same privacy, on every one of them.

PDF tools

Merge, split, compress, sign, and convert PDF files without an upload.

Image tools

HEIC, WebP, AVIF, and JPG conversion, compression, resizing, and cropping.

Why these tools run in your browser

Almost every free file converter on the web works the same way: you upload a document, a server processes it, and you download the result. That model made sense when browsers could not do much. It has not been necessary for years, and it carries a cost that is easy to overlook because it is invisible — your file goes to a machine you do not control, handled under a privacy policy you did not read, retained for a period you were not told.

The files people most often need to convert are precisely the ones that argue against uploading. Bank statements compressed for an email. A passport photographed and turned into a PDF. A payslip that needs its password removed. A signed contract merged with its appendices. These are not incidental documents, and handing them to an anonymous conversion service to accomplish something a browser can do locally is a bad trade that most people make without noticing they are making it.

Everything here runs on your device. PDF manipulation uses pdf-lib. Page rendering and text extraction use PDF.js. HEIC photographs are decoded by a WebAssembly build of libheif. Zip files are built with fflate. Word documents are parsed with mammoth. Every one of those libraries is served from this domain and executes in your tab. There is no upload endpoint in the code, which is a claim you can check rather than take on faith — open your browser's developer tools, switch to the Network panel, and run any conversion on the site. Nothing outbound fires.

What that means in practice

Speed is bounded by your device rather than by a queue. A ten-page merge is effectively instant because there is no round trip. A two-hundred-page render takes longer on a phone than on a laptop, which is the honest trade for not having a server do the work. Nothing is capped by a daily limit or a paid tier, because there is no per-file cost to us.

The limits are real and worth stating. Very large files are constrained by how much memory your browser will give a tab, so a five-hundred-megabyte scan may fail where a server would not. Some conversions are genuinely lossy — compressing a PDF turns pages into images, and converting a PDF to Word reconstructs paragraphs rather than recovering the original document, because that information is not stored in the file. Each tool page says plainly what it does and does not preserve, rather than promising a perfect round trip that no converter can deliver.

How the site is paid for

Display ads, and nothing else. There is no account system, no premium tier gating features, and no API selling access to your documents. Ads are placed away from the working area and hidden while a tool is running, so a click never lands somewhere unintended. If a tool saved you something, there is a tip link, entirely optional.

Common questions

Are my files really not uploaded?

Yes, and you can verify it rather than trusting it. Open developer tools, switch to the Network panel, and run any conversion. No request carrying your file is made, because there is no endpoint to receive one.

Do I need an account?

No. There is no sign-up, no email, and no login anywhere on the site.

Is there a file size limit?

No fixed limit. The practical ceiling is your device's memory, since files are held in the browser tab while they are processed. Laptops handle far more than phones.

Does it work offline?

Once a tool page has loaded, the conversion itself does not need a connection. The page and its libraries have to be downloaded first.

Why is it free?

Display ads cover hosting, which is cheap because no server does any file processing. There is no data being sold, because no file ever reaches us to sell.

Which browsers are supported?

Current versions of Chrome, Edge, Firefox, and Safari, on desktop and mobile. Some tools are memory-hungry and will do better on a laptop than on an older phone.