About
Converting a file or formatting a JSON payload is a small task, and the conventional way to offer it online is to take the user's file, process it on a server, and hand back the result. That works, but it means the person merging a signed contract or decoding an auth header has handed a copy to a stranger, and the operator now has hosting bills that eventually get paid for with ads, upload caps, or a subscription prompt.
Doing the work in the browser removes both problems at once. Your file is never transmitted, and because there is no per-conversion cost on our side, there is nothing to meter. That is why there are no daily limits, no accounts, and no watermarks here — not generosity, just the natural consequence of the architecture.
Files are read from disk into the page and processed there. You do not have to believe us: open your browser developer tools, switch to the Network tab, and run a conversion. No request carries your file.
Most of the time you spend on a server-based converter is transfer time and queueing. Skipping the round trip is what makes these tools feel fast, rather than any special processing speed.
No daily caps, no sign-up, no watermarks, and no file size limit imposed by us. The real ceiling is your own device memory, since files are held in RAM while they are processed.
Where a tool cannot do something, the page says so rather than letting you find out after uploading. Several tools carry a documented list of what they do not handle.
The site is a Next.js application. Image conversion uses the browser's own Canvas API: the image is decoded, drawn to a canvas, and re-encoded in the target format. PDF operations — merging, splitting, building a PDF from images — use pdf-lib, and rendering PDF pages to images uses PDF.js. The developer and text utilities are plain JavaScript running in the page.
Two clarifications, because similar sites often claim otherwise. There is no WebAssembly in the conversion path; it is Canvas and JavaScript. And there is no service worker, so the tools are not usable offline — the page and its JavaScript (including PDF.js for PDF-to-image) have to load first. Your documents still are not uploaded; that is separate from needing a connection to open the site.
Fileraz is built and maintained by Satyendra Rajbhar, a full-stack developer working mainly with Next.js and TypeScript. Most of these tools exist because I wanted them myself and did not want to paste work data into an ad-covered page to get them.
That is worth saying plainly because this category is full of anonymous sites with no author, no contact route, and no way to tell who is receiving your files. If something here is broken or wrong, there is a person to tell: get in touch, or find me on GitHub.
Running in the browser is not free of trade-offs, and pretending otherwise would be the same overselling this site is trying to avoid. Processing is bounded by your device, so a very large file can exhaust memory where a server would cope. Format support is limited to what your browser can decode, which is why TIFF conversion does not work in Chrome or Firefox. Most image tools handle one file at a time rather than a batch. And a few operations that need real cryptography — adding a password to a PDF, for one — are not available here at all.
For heavy or repeated work, command-line tools like ImageMagick, Ghostscript, and qpdf remain better instruments. These tools are for the common case: one file, right now, without handing it to anyone.
