Sign PDFs, remove backgrounds, transcribe audio, compress video, edit code on your own disk, and 20 more. Every tool runs inside your browser. Nothing is uploaded, because there is no server to upload to.
Drop a file. Watch nothing happen.
It is. Each of these downloads its code once, then does all the work on your machine. No server involved.
The neural network downloads into your browser once. After that, every cutout runs on your CPU. The sites that do this for free do it by uploading your photo. This one cannot.
OpenAI's Whisper speech model, loaded into the tab and run on your machine. Drop a meeting recording or a voice memo, get timestamped text, export SRT or VTT for subtitles.
Open a project folder straight from your computer. Edit in a Monaco editor with 90+ languages, run Python, preview React components, and save back to the same files.
Draw a signature and place it with a date. Merge and split without re-rendering, so quality never drops. Redact with a black box, brush, or pixelation, burned into the export.
The tools you would otherwise search for one at a time, on sites that keep your file.
Every privacy claim on this page can be checked from your own keyboard. Here are three ways.
Open DevTools, open any tool, drop a file. The only traffic you will see is the tool's own code loading. Your file never appears in the list.
We do not run analytics scripts and we do not set tracking cookies. We cannot see what you open, so we cannot see your files.
Every "free online PDF merger" has a server, and your document is what it runs on.
| Free online tool sites | DeskZero | |
|---|---|---|
| Where your file goes | Their server | Nowhere. It stays in your browser. |
| File size limits | Yes, unless you pay to lift them | None. Your machine is the limit. |
| Watermarks, daily caps, queues | Common | None |
| Ads and trackers | Everywhere | None |
| What it costs | Free, and your files are the payment | $9 a month, everything included |
No tiers, no add-ons, no per-file pricing.
Cancel anytime.
The tools. Building a PDF signer, a video compressor, an IDE, and a speech-to-text engine that all run inside a browser tab is the hard part. The $9 covers that work and keeps the product free of ads, trackers, and upsells.
There is a small one, and it only handles your account and billing through Stripe. It never receives a file. Every tool does its work in your browser, on your machine.
There are no artificial limits. Most tools are bounded by your computer's memory. The video trimmer streams from disk, so long recordings are fine.
Chrome and Edge get everything. A few tools, like the code editor and screen capture, rely on newer browser APIs that Firefox and Safari have not fully shipped yet.
Background removal and transcription download their model the first time you use them, then cache it in your browser. The model runs on your CPU. Your images and audio are never sent anywhere.
Yes, any time.