What Unfuss is
Unfuss is a curated set of free file utilities that handle the everyday tasks most people would otherwise hand to a sketchy ad-laden converter site: shrinking a photo to fit an email, combining two PDFs into one, getting an iPhone picture into a format your aunt's computer can open, sticking a password on a sensitive document before sending it.
The difference is that each tool here is a single web page that loads JavaScript into your browser. The work is done on your own device, by your own CPU, using libraries that are open-source and inspectable. Your file never travels across the internet, because there's nowhere for it to go — Unfuss has no servers that process user content. Open your browser's developer tools, watch the Network tab, drop a file, and verify it yourself.
Why it exists
The standard "free online tool" business model is to upload your file to a server, run a fast process on it, hand you back a watermarked result, and then upsell you a subscription to remove the watermark. The hidden costs are paying with your data, your attention (ads), and your trust that the file you uploaded is deleted afterwards.
None of that is technically necessary anymore. Browsers in 2026 can do all of it locally: JPEG and WebP encoding, PDF parsing and writing, HEIC decoding, AES-256 encryption, QR generation. The libraries are mature and free under permissive licences. Building these tools as static web pages is now strictly faster, cheaper, and more private than the upload-and-process model — yet most of the top Google results still upload your files.
Unfuss exists to be the simple, honest version of those tools. Free in the sense of "no charge and no catch." Private in the sense of "your files literally never leave your device." No watermarks, no signup wall, no premium tier.
The principles we build by
- Client-side or nothing. If a tool can't be built to run entirely in the browser, it doesn't get built here. This is a hard rule, not a marketing claim — we don't operate any servers that process user files.
- No accounts, no logins, no email capture. You shouldn't have to identify yourself to compress a photo. There is no signup form anywhere on this site.
- Plain language over corporate copy. Our privacy policy says "we don't collect anything" instead of three pages of "we may, in certain circumstances, process aggregated metadata for legitimate business purposes." Our terms of service are short. The FAQs answer the questions we'd actually want answered.
- Open libraries, traceable stack. Unfuss is built on widely-used open-source libraries (pdf-lib, browser-image-compression, libheif-js, zip.js, and others). We don't ship a black-box binary. Every tool's source is the static HTML and JavaScript your browser downloads — view-source is honest.
- Boring, fast, accessible. No login flows, no chat widgets, no popups, no consent banners we don't need. Pages load fast on a phone over a slow connection. Touch targets are large. Keyboard navigation works.
The tools, today
Eight utilities live at unfuss.app at the time of writing:
- Image Compressor — shrink JPG, PNG, and WebP files up to 90% without visible quality loss.
- Image Resizer — set an exact width or height in pixels or percentages, batch any number of files.
- HEIC → JPG — convert iPhone photos into a format every device can read.
- PNG → WebP — turn large transparent PNGs into much smaller WebPs for the web.
- PDF Merger — combine multiple PDFs into a single ordered document.
- PDF Signer — draw or type a signature directly onto a PDF.
- PDF & XML Password Protect — AES-256 encryption for PDFs (native) and XML (encrypted ZIP).
- QR Code Generator — any URL or text, any size, downloadable.
More tools are added when we run into a real problem that fits the brief: useful to a non-technical person, doable entirely in the browser, not already done well elsewhere. Suggestions are welcome at the email below.
Who maintains it
Unfuss is built and maintained by Integer Logic, a small independent software studio. The project is funded by its operators and (once approved) by unobtrusive advertising — see the privacy policy and terms of service for how that works. There is no venture capital behind Unfuss and no plans to introduce paid tiers, freemium gates, or "Pro" subscriptions. The tools are free because they're cheap to host and we'd rather they exist for everyone than not exist at all.
How we pay for it
The site is a static bundle served from Cloudflare Pages, which is free at this scale. The cost to operate Unfuss is small — primarily the domain renewal — and is covered by display advertising served by Google AdSense (subject to approval). Ads run alongside content, are clearly labelled as advertising, and never read or interact with the files you process inside the tools. Your file privacy is unaffected by whether or not ads appear on the page.
If you'd prefer to skip the ads, every modern browser includes a built-in content blocker (Brave, Firefox Strict Mode, Safari Reader) or accepts an extension like uBlock Origin. We won't put up an "ad-blocker detected" wall.
Contact
Bug reports, feature requests, partnerships, press, complaints, kind words, hate mail, or "I built a similar thing and want to compare notes" — all welcome at support@integerlogic.io. We read every message and try to reply within a few business days.