FileKitt exists because of a simple frustration: to shrink a photo for a government form, most sites make you upload your file to their server, wait in a queue, watch three ads, and trust a stranger with your ID document.
Modern browsers can do all of this locally. Compressing an image, rebuilding a PDF, extracting a table — your laptop is more than capable. So every FileKitt tool runs entirely on your device. Files are never uploaded, which makes the tools faster than upload-based sites and private by physics rather than by promise.
The principles
- Private by design. No file ever leaves your browser. There is no server that could store it.
- Free without tricks. No watermarks, no daily limits, no features held hostage. The site is supported by ads.
- Exact answers. Portals say "under 200 KB", so our compressors target exact sizes instead of vague percentages.
Questions or ideas? Get in touch — tool requests are genuinely welcome.
How the tools are built
Every FileKitt tool is a self-contained web app that runs on open, well-tested foundations — the same libraries that power professional software. PDFs are rendered with pdf.js (the engine inside Firefox's PDF viewer), rebuilt with pdf-lib and jsPDF, spreadsheets are written with SheetJS, and images are compressed by the browser's own graphics engine. Nothing here depends on a remote server doing the work, which is what makes the tools both fast and private.
How FileKitt stays free
The site is funded by advertising, and that's the entire model — there is no paid tier, no subscription and no upsell. Because the tools run on your device rather than on servers we'd have to pay for, the running costs are low enough that ads alone keep everything free, for everyone, with no usage caps. We think that's a fairer trade than locking a "compress under 100 KB" button behind a monthly fee.
What's next
The suite grows based on what people actually ask for. OCR for scanned PDFs, more conversion formats, and additional size presets for portals with unusual limits are all on the roadmap. If a tool you need is missing, or an existing one trips over a particular file, the contact page is a real inbox and those messages directly shape what gets built next. You can also browse the guides for practical walkthroughs of the most common file problems.